Merge branch 'release/r#119' into develmaster

Merge branch 'feature/#119' into develop
finish #119
2013-07-22 15:09:11 +02:00 · 2013-07-22 15:08:41 +02:00 · 2013-07-22 14:46:44 +02:00 · 2013-07-22 13:48:53 +02:00 · 2013-07-22 13:48:05 +02:00 · 2013-07-22 11:46:46 +02:00
2563 changed files with 152644 additions and 36805 deletions
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,64 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+*.csproj -text merge=union
+*.sln -text merge=union
+*.resx -text merge=union
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,163 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+
+[Dd]ebug/
+[Rr]elease/
+x64/
+build/
+[Bb]in/
+[Oo]bj/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.log
+*.scc
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+*.ncrunch*
+.*crunch*.local.xml
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+*.pubxml
+
+# NuGet Packages Directory
+## TODO: If you have NuGet Package Restore enabled, uncomment the next line
+#packages/
+
+# Windows Azure Build Output
+csx
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Others
+sql/
+*.Cache
+ClientBin/
+[Ss]tyle[Cc]op.*
+~$*
+*~
+*.dbmdl
+*.[Pp]ublish.xml
+*.pfx
+*.publishsettings
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+App_Data/*.mdf
+App_Data/*.ldf
+
+
+#LightSwitch generated files
+GeneratedArtifacts/
+_Pvt_Extensions/
+ModelManifest.xml
+
+# =========================
+# Windows detritus
+# =========================
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Mac desktop service store files
+.DS_Store
+gitattributes
+gitignore
+winphone/
+.spl
+.srum
+*.spl
+*.srum
+Doxyfile
+screenshots/
--- a/CampusAppWP8/CampusAppWP8/Api/Lecture/LectureApi.cs
+++ b/CampusAppWP8/CampusAppWP8/Api/Lecture/LectureApi.cs
@@ -0,0 +1,32 @@
+//-----------------------------------------------------------------------
+// <copyright file="LectureApi.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>13.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Lecture
+{
+    using System;
+    using CampusAppWP8.Model.Lecture;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// Class for the feed of the Lecture
+    /// </summary>
+    /// <remarks>
+    /// need the XmlAPI
+    /// </remarks>
+    public class LectureApi : XmlApi<LectureList>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LectureApi" /> class.
+        /// </summary>
+        public LectureApi()
+            : base(new Uri(Constants.UrlLecture_ApiBaseAddr))
+        {
+            this.ValidRootName = Constants.LectureXmlValidRootName;
+        }
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/App.xaml
+++ b/CampusAppWP8/CampusAppWP8/App.xaml
@@ -8,7 +8,17 @@

    <!--Anwendungsressourcen-->
    <Application.Resources>
-    	<local:LocalizedStrings xmlns:local="clr-namespace:CampusAppWP8" x:Key="LocalizedStrings"/>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="Styles/ListButton.xaml"/>
+                <ResourceDictionary Source="Styles/StartPageStyles.xaml"/>
+                <ResourceDictionary>
+                    <local:LocalizedStrings xmlns:local="clr-namespace:CampusAppWP8" x:Key="LocalizedStrings"/>
+                    <local:ThemelizedIcons xmlns:local="clr-namespace:CampusAppWP8" x:Key="ThemelizedIcons"/>
+                    <local:Const xmlns:local="clr-namespace:CampusAppWP8" x:Key="Const"/>
+                </ResourceDictionary>
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
    </Application.Resources>

    <Application.ApplicationLifetimeObjects>
--- a/CampusAppWP8/CampusAppWP8/App.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/App.xaml.cs
@@ -91,6 +91,39 @@ namespace CampusAppWP8
            }
            return default(T);
        }
+
+        /// <summary>
+        /// Method save any object to the IsolatedStorage
+        /// </summary>
+        /// <param name="key"> key of the object</param>
+        /// <param name="value">value of the object, if value == null => remove key</param>
+        public static void SaveToAppState<T>(string key, T value)
+        {
+            IsolatedStorageSettings isolatedStore = IsolatedStorageSettings.ApplicationSettings;
+            isolatedStore.Remove(key);
+            if (value != null)
+            {
+                isolatedStore.Add(key, value);
+            }
+
+            isolatedStore.Save();
+        }
+
+        /// <summary>
+        /// Method load any object to the IsolatedStorage
+        /// </summary>
+        /// <param name="key"> key of the object</param>
+        public static T LoadFromAppState<T>(string key)
+        {
+            IsolatedStorageSettings isolatedStore = IsolatedStorageSettings.ApplicationSettings;
+
+            if (isolatedStore.Contains(key))
+            {
+                object value = isolatedStore[key];
+                return (T)value;
+            }
+            return default(T);
+        }
        // Code, der beim Starten der Anwendung ausgeführt werden soll (z. B. über "Start")
        // Dieser Code wird beim Reaktivieren der Anwendung nicht ausgeführt
        private void Application_Launching(object sender, LaunchingEventArgs e)
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/departments_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/departments_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/btulogo_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/btulogo_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/campus_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/campus_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/delete_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/delete_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/departments_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/departments_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/favorite_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/favorite_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/homework_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/homework_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/info_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/info_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/lectures_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/lectures_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/link_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/link_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/mensa_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/mensa_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/news_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/news_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/openhours_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/openhours_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/phone_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/phone_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/schedule_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/schedule_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/search_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/search_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/student_council_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/student_council_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/webmail_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/DarkTheme/webmail_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/add_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/add_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/btulogo_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/btulogo_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/campus_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/campus_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/delete_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/delete_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/departments_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/departments_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/favorite_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/favorite_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/homework_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/homework_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/info_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/info_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/lectures_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/lectures_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/link_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/link_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/mensa_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/mensa_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/news_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/news_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/openhours_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/openhours_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/phone_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/phone_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/schedule_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/schedule_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/search_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/search_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/student_council_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/student_council_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/webmail_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Icons/LightTheme/webmail_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Tiles/kachel_large.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Tiles/kachel_large.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Tiles/kachel_medium.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Tiles/kachel_medium.png
--- a/CampusAppWP8/CampusAppWP8/Assets/Tiles/kachel_small.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/Tiles/kachel_small.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/DarkTheme/update_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/DarkTheme/update_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/LightTheme/update_159.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/LightTheme/update_159.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/campus_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/campus_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/departments_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/departments_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/homework_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/homework_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/homework_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/homework_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/lectures_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/lectures_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/lectures_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/lectures_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/link_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/link_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/link_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/link_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/mensa_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/mensa_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/mensa_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/mensa_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/news_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/news_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/news_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/news_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/openhours_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/openhours_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/openhours_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/openhours_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/schedule_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/schedule_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/schedule_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/schedule_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/student_council_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/student_council_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/student_council_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/student_council_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/webmail_159_dark.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/webmail_159_dark.png
--- a/CampusAppWP8/CampusAppWP8/Assets/icons/webmail_159_light.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/icons/webmail_159_light.png
--- a/CampusAppWP8/CampusAppWP8/Assets/testmap.png
+++ b/CampusAppWP8/CampusAppWP8/Assets/testmap.png
--- a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
+++ b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
@@ -96,26 +96,54 @@
    <Compile Include="App.xaml.cs">
      <DependentUpon>App.xaml</DependentUpon>
    </Compile>
+    <Compile Include="Feed\Departments\DepartmentFavoriteFeed.cs" />
+    <Compile Include="Const.cs" />
+    <Compile Include="Resources\Icons.Designer.cs" />
+    <Compile Include="Utility\Lui\Button\EmailButton.cs" />
+    <Compile Include="Feed\Link\CommonLinkFeed.cs" />
+    <Compile Include="Feed\Link\ClubLinkFeed.cs" />
+    <Compile Include="Feed\Openinghours\OpeninghoursFeed.cs" />
+    <Compile Include="Feed\StudentCouncil\StudentCouncilFeed.cs" />
    <Compile Include="LocalizedStrings.cs" />
+    <Compile Include="Model\Campusmap\MapModel.cs" />
+    <Compile Include="Model\Campusmap\MapPinModel.cs" />
    <Compile Include="Model\Departments\ChairModel.cs" />
    <Compile Include="Model\Departments\DepartmentModel.cs" />
-    <Compile Include="Model\Departments\DepartmentViewModel.cs" />
    <Compile Include="Model\Departments\FacultyModel.cs" />
-    <Compile Include="Model\Events\RSSChannelModel.cs" />
-    <Compile Include="Model\Events\RSSViewModel.cs" />
+    <Compile Include="Model\RSS\RSSChannelModel.cs" />
+    <Compile Include="Model\RSS\RSSViewModel.cs" />
    <Compile Include="Model\Lecture\LectureActivity.cs" />
    <Compile Include="Model\Lecture\LectureCourse.cs" />
    <Compile Include="Model\Lecture\LectureDate.cs" />
    <Compile Include="Model\Lecture\LectureLecturer.cs" />
    <Compile Include="Model\Lecture\LectureList.cs" />
    <Compile Include="Model\Lecture\LectureModule.cs" />
+    <Compile Include="Model\Lecture\LecturePageModel.cs" />
+    <Compile Include="Model\MainModel.cs" />
+    <Compile Include="Model\Link\LinkModel.cs" />
+    <Compile Include="Model\Link\LinkListModel.cs" />
    <Compile Include="Model\Mensa\MenuModel.cs" />
    <Compile Include="Model\Mensa\MenuWeekModel.cs" />
+    <Compile Include="Model\Openinghours\OpeninghoursInstitutionModel.cs" />
+    <Compile Include="Model\Openinghours\OpeninghoursModel.cs" />
+    <Compile Include="Model\StudentCouncil\StudentCouncilListModel.cs" />
+    <Compile Include="Model\StudentCouncil\StudentCouncilModel.cs" />
+    <Compile Include="Model\Utility\UrlParamModel.cs" />
+    <Compile Include="Model\XmlModel.cs" />
    <Compile Include="Pages\Campusmap\CampusMapPage.xaml.cs">
      <DependentUpon>CampusMapPage.xaml</DependentUpon>
    </Compile>
-    <Compile Include="Feed\Lecture\LectureFeed.cs" />
+    <Compile Include="Api\Lecture\LectureApi.cs" />
    <Compile Include="Feed\Departments\DepartmentFeed.cs" />
+    <Compile Include="Pages\Departments\DepartmentFavoritePage.xaml.cs">
+      <DependentUpon>DepartmentFavoritePage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\Departments\DepartmentIndexPage.xaml.cs">
+      <DependentUpon>DepartmentIndexPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\Departments\DepartmentInfoPage.xaml.cs">
+      <DependentUpon>DepartmentInfoPage.xaml</DependentUpon>
+    </Compile>
    <Compile Include="Pages\Departments\DepartmentPage.xaml.cs">
      <DependentUpon>DepartmentPage.xaml</DependentUpon>
    </Compile>
@@ -126,11 +154,9 @@
    <Compile Include="Pages\Events\EventPage.xaml.cs">
      <DependentUpon>EventPage.xaml</DependentUpon>
    </Compile>
-    <Compile Include="pages\lecture\LecturePage.xaml.cs">
+    <Compile Include="Pages\Lecture\LecturePage.xaml.cs">
      <DependentUpon>LecturePage.xaml</DependentUpon>
    </Compile>
-    <Compile Include="Model\BaseModel.cs" />
-    <Compile Include="Model\BaseViewModel.cs" />
    <Compile Include="Feed\Mensa\MensaFeed.cs" />
    <Compile Include="Pages\Lecture\ModulWebPage.xaml.cs">
      <DependentUpon>ModulWebPage.xaml</DependentUpon>
@@ -142,6 +168,9 @@
    <Compile Include="Pages\Lecture\ResultPage.xaml.cs">
      <DependentUpon>ResultPage.xaml</DependentUpon>
    </Compile>
+    <Compile Include="Pages\Links\LinkPage.xaml.cs">
+      <DependentUpon>LinkPage.xaml</DependentUpon>
+    </Compile>
    <Compile Include="Pages\Mensa\MensaPage.xaml.cs">
      <DependentUpon>MensaPage.xaml</DependentUpon>
    </Compile>
@@ -152,10 +181,16 @@
    <Compile Include="Pages\News\NewsPage.xaml.cs">
      <DependentUpon>NewsPage.xaml</DependentUpon>
    </Compile>
-    <Compile Include="Model\Events\RSSModel.cs" />
-    <Compile Include="pages\StartPage.xaml.cs">
+    <Compile Include="Model\RSS\RSSModel.cs" />
+    <Compile Include="Pages\Openinghours\OpeninghoursPage.xaml.cs">
+      <DependentUpon>OpeninghoursPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\StartPage.xaml.cs">
      <DependentUpon>StartPage.xaml</DependentUpon>
    </Compile>
+    <Compile Include="Pages\StudentCouncil\StudentCouncilPage.xaml.cs">
+      <DependentUpon>StudentCouncilPage.xaml</DependentUpon>
+    </Compile>
    <Compile Include="Pages\Webmail\WebmailPage.xaml.cs">
      <DependentUpon>WebmailPage.xaml</DependentUpon>
    </Compile>
@@ -170,15 +205,23 @@
      <DesignTime>True</DesignTime>
      <DependentUpon>Constants.resx</DependentUpon>
    </Compile>
-    <Compile Include="Utility\Feed.cs" />
-    <Compile Include="Utility\FeedEventHandler.cs" />
-    <Compile Include="Utility\FileList.cs" />
-    <Compile Include="Utility\FileManager.cs" />
+    <Compile Include="ThemelizedIcons.cs" />
+    <Compile Include="Utility\Api.cs" />
+    <Compile Include="Utility\ApiEventHandler.cs" />
+    <Compile Include="Utility\File.cs" />
    <Compile Include="Utility\Logger.cs" />
-    <Compile Include="Utility\RestApi.cs" />
+    <Compile Include="Utility\HttpRequest.cs" />
+    <Compile Include="Utility\Lui\Button\GoToMapButton.cs" />
+    <Compile Include="Utility\Lui\Button\ToggleButton.cs" />
+    <Compile Include="Utility\Lui\Button\NavigateButton.cs" />
+    <Compile Include="Utility\Lui\Button\PhoneButton.cs" />
+    <Compile Include="Utility\Lui\Button\LinkButton.cs" />
    <Compile Include="Utility\StringManager.cs" />
-    <Compile Include="Utility\URLList.cs" />
-    <Compile Include="Utility\XmlFeed.cs" />
+    <Compile Include="Utility\Utilities.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Utility\XmlApi.cs" />
+    <Compile Include="Utility\XmlManager.cs" />
  </ItemGroup>
  <ItemGroup>
    <ApplicationDefinition Include="App.xaml">
@@ -189,6 +232,18 @@
      <SubType>Designer</SubType>
      <Generator>MSBuild:Compile</Generator>
    </Page>
+    <Page Include="Pages\Departments\DepartmentFavoritePage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\Departments\DepartmentIndexPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\Departments\DepartmentInfoPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
    <Page Include="Pages\Departments\DepartmentPage.xaml">
      <SubType>Designer</SubType>
      <Generator>MSBuild:Compile</Generator>
@@ -217,6 +272,10 @@
      <Generator>MSBuild:Compile</Generator>
      <SubType>Designer</SubType>
    </Page>
+    <Page Include="Pages\Links\LinkPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
    <Page Include="Pages\Mensa\MensaPage.xaml">
      <Generator>MSBuild:Compile</Generator>
      <SubType>Designer</SubType>
@@ -229,14 +288,30 @@
      <SubType>Designer</SubType>
      <Generator>MSBuild:Compile</Generator>
    </Page>
+    <Page Include="Pages\Openinghours\OpeninghoursPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
    <Page Include="pages\StartPage.xaml">
      <SubType>Designer</SubType>
      <Generator>MSBuild:Compile</Generator>
    </Page>
+    <Page Include="Pages\StudentCouncil\StudentCouncilPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
    <Page Include="Pages\Webmail\WebmailPage.xaml">
      <Generator>MSBuild:Compile</Generator>
      <SubType>Designer</SubType>
    </Page>
+    <Page Include="Styles\StartPageStyles.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Include="Styles\ListButton.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
  </ItemGroup>
  <ItemGroup>
    <None Include="Assets\psd\holo_optionsbuttons.psd" />
@@ -252,28 +327,45 @@
    <Content Include="Assets\ApplicationIcon.png">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </Content>
-    <Content Include="Assets\icons\campus_159_dark.png" />
-    <Content Include="Assets\icons\campus_159_light.png" />
-    <Content Include="Assets\icons\departments_159_dark.png" />
-    <Content Include="Assets\icons\departments_159_light.png" />
-    <Content Include="Assets\icons\homework_159_dark.png" />
-    <Content Include="Assets\icons\homework_159_light.png" />
-    <Content Include="Assets\icons\link_159_dark.png" />
-    <Content Include="Assets\icons\link_159_light.png" />
-    <Content Include="Assets\icons\lectures_159_dark.png" />
-    <Content Include="Assets\icons\lectures_159_light.png" />
-    <Content Include="Assets\icons\mensa_159_dark.png" />
-    <Content Include="Assets\icons\mensa_159_light.png" />
-    <Content Include="Assets\icons\news_159_dark.png" />
-    <Content Include="Assets\icons\news_159_light.png" />
-    <Content Include="Assets\icons\openhours_159_dark.png" />
-    <Content Include="Assets\icons\openhours_159_light.png" />
-    <Content Include="Assets\icons\schedule_159_dark.png" />
-    <Content Include="Assets\icons\schedule_159_light.png" />
-    <Content Include="Assets\icons\student_council_159_dark.png" />
-    <Content Include="Assets\icons\student_council_159_light.png" />
-    <Content Include="Assets\icons\webmail_159_dark.png" />
-    <Content Include="Assets\icons\webmail_159_light.png" />
+    <Content Include="Assets\Icons\DarkTheme\add_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\btulogo_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\campus_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\delete_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\favorite_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\info_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\phone_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\update_159.png" />
+    <Content Include="Assets\Icons\LightTheme\add_159.png" />
+    <Content Include="Assets\Icons\LightTheme\btulogo_159.png" />
+    <Content Include="Assets\Icons\LightTheme\campus_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\departments_159.png" />
+    <Content Include="Assets\Icons\LightTheme\delete_159.png" />
+    <Content Include="Assets\Icons\LightTheme\departments_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\homework_159.png" />
+    <Content Include="Assets\Icons\LightTheme\favorite_159.png" />
+    <Content Include="Assets\Icons\LightTheme\homework_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\link_159.png" />
+    <Content Include="Assets\Icons\LightTheme\info_159.png" />
+    <Content Include="Assets\Icons\LightTheme\link_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\lectures_159.png" />
+    <Content Include="Assets\Icons\LightTheme\lectures_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\mensa_159.png" />
+    <Content Include="Assets\Icons\LightTheme\mensa_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\news_159.png" />
+    <Content Include="Assets\Icons\LightTheme\news_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\openhours_159.png" />
+    <Content Include="Assets\Icons\LightTheme\openhours_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\schedule_159.png" />
+    <Content Include="Assets\Icons\LightTheme\phone_159.png" />
+    <Content Include="Assets\Icons\LightTheme\schedule_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\search_159.png" />
+    <Content Include="Assets\Icons\LightTheme\search_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\student_council_159.png" />
+    <Content Include="Assets\Icons\LightTheme\student_council_159.png" />
+    <Content Include="Assets\Icons\DarkTheme\webmail_159.png" />
+    <Content Include="Assets\Icons\LightTheme\update_159.png" />
+    <Content Include="Assets\Icons\LightTheme\webmail_159.png" />
+    <Content Include="Assets\testmap.png" />
    <Content Include="Assets\Tiles\FlipCycleTileLarge.png">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </Content>
@@ -289,6 +381,9 @@
    <Content Include="Assets\Tiles\IconicTileSmall.png">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </Content>
+    <Content Include="Assets\Tiles\kachel_large.png" />
+    <Content Include="Assets\Tiles\kachel_medium.png" />
+    <Content Include="Assets\Tiles\kachel_small.png" />
    <Content Include="README_FIRST.txt" />
    <Content Include="Toolkit.Content\ApplicationBar.Cancel.png" />
    <Content Include="Toolkit.Content\ApplicationBar.Check.png" />
@@ -302,8 +397,12 @@
      <SubType>Designer</SubType>
    </EmbeddedResource>
    <EmbeddedResource Include="Resources\Constants.resx">
-      <Generator>ResXFileCodeGenerator</Generator>
+      <Generator>PublicResXFileCodeGenerator</Generator>
      <LastGenOutput>Constants.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Resources\Icons.resx">
+      <SubType>Designer</SubType>
    </EmbeddedResource>
  </ItemGroup>
  <ItemGroup>
--- a/CampusAppWP8/CampusAppWP8/Const.cs
+++ b/CampusAppWP8/CampusAppWP8/Const.cs
@@ -0,0 +1,33 @@
+//-----------------------------------------------------------------------
+// <copyright file="Const.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>08.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8
+{
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// Access to Constants.rex
+    /// </summary>
+    public class Const
+    {
+        /// <summary>
+        /// Resource object.
+        /// </summary>
+        private static Constants constantResources = new Constants();
+
+        /// <summary>
+        /// Gets the resource object.
+        /// </summary>
+        public Constants Constants
+        {
+            get
+            {
+                return constantResources;
+            }
+        }
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Feed/Departments/DepartmentFavoriteFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Departments/DepartmentFavoriteFeed.cs
@@ -0,0 +1,105 @@
+//-----------------------------------------------------------------------
+// <copyright file="DepartmentFavoriteFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>01.07.2013</sience>
+//----------------------------------------------------------------------using System;
+namespace CampusAppWP8.Feed.Departments
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Departments;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// Feed object to handle favorite department feeds. 
+    /// </summary>
+    public class DepartmentFavoriteFeed : XmlModel<DepartmentModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DepartmentFavoriteFeed" /> class.
+        /// </summary>
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public DepartmentFavoriteFeed(bool autoLoad = true)
+            : base(ModelType.File, Constants.FileDepartment_Favorite_Name, string.Empty)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
+        }
+
+        // Constructor
+        #endregion
+
+        #region Method
+
+        #region Protected
+
+        /// <summary>
+        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(DepartmentModel model)
+        {
+            bool retValue = true;
+
+            if ((model == null)
+            || (model.Faculties == null)
+            || (model.Faculties.Count != 1))
+            {
+                retValue = false;
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnLoad(DepartmentModel model, FileInfo info)
+        {
+            bool retValue = false;
+
+            if (this.Model == null)
+            {
+                retValue = true;
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(DepartmentModel model, FileInfo info)
+        {
+            bool retValue = false;
+
+            retValue = (model.HasChanged() == false) ? true : false;
+            
+            return retValue;
+        }
+
+        // Protected
+        #endregion
+
+        // Method
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Feed/Departments/DepartmentFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Departments/DepartmentFeed.cs
@@ -1,37 +1,116 @@
-using CampusAppWP8.Model.Departments;
-using CampusAppWP8.Utility;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
+//-----------------------------------------------------------------------
+// <copyright file="DepartmentFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Feed.Departments
 {
-    class DepartmentFeed : XmlFeed<DepartmentViewModel>
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Departments;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// Feed class for the department information.
+    /// </summary>
+    public class DepartmentFeed : XmlModel<DepartmentModel>
    {
-        public DepartmentFeed() : base(URLList.DepartmentFeedURL, "DepartmentFeed.xml")
+        #region Constructor
+        
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DepartmentFeed" /> class.
+        /// </summary>
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public DepartmentFeed(bool autoLoad = true)
+            : base(ModelType.FileAndFeed, Constants.FileDepartment_Name, Constants.UrlDepartment_Addr)
        {
-            
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
        }
-        public System.Collections.ObjectModel.ObservableCollection<FacultyModel> _faculties { get; set; }
+     
+        // Constructor
+        #endregion
+
+        #region Method
+
+        #region Protected

        /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
+        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>.
        /// </summary>
+        /// <param name="model">model object</param>
        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
+        private bool CheckIsModelUpToDate(DepartmentModel model)
        {
-            return false;
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 7.0);
+            }
+            
+            return retValue;
        }

        /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
+        private bool CheckIsFileUpToDateOnLoad(DepartmentModel model, FileInfo info)
        {
-            return false;
+            bool retValue = true;
+
+            if (model == null) 
+            {
+                // at loading
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 7.0);
+                }
+            }
+            
+            return retValue;
        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(DepartmentModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            // at saving
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+        
+            return retValue;
+        }
+
+        // Protedted
+        #endregion
+
+        // Method
+        #endregion
    }
 }
--- a/CampusAppWP8/CampusAppWP8/Feed/Events/EventFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Events/EventFeed.cs
@@ -1,41 +1,100 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-using CampusAppWP8.Model.events_news;
-using CampusAppWP8.Utility;
-
+//-----------------------------------------------------------------------
+// <copyright file="EventFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Feed.Events
 {
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.RSS;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
    /// <summary>
    /// Event Feed.
    /// </summary>
-    public class EventFeed : XmlFeed<RSSViewModel>
+    public class EventFeed : XmlModel<RSSViewModel>
    {
        /// <summary>
-        /// Default constructor.
+        /// Initializes a new instance of the <see cref="EventFeed" /> class.
        /// </summary>
-        public EventFeed() : base(URLList.EventsFeedURL, "EventFeed.xml")
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public EventFeed(bool autoLoad = true)
+            : base(ModelType.FileAndFeed, Constants.FileEvents_Name, Constants.UrlEvents_Addr)
        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
        }
+
        /// <summary>
        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
        /// </summary>
+        /// <param name="model">model object</param>
        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
+        private bool CheckIsModelUpToDate(RSSViewModel model)
        {
-            return false;
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 1.0);
+            }
+
+            return retValue;
        }

        /// <summary>
        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
+        private bool CheckIsFileUpToDateOnLoad(RSSViewModel model, FileInfo info)
        {
-            return true;
+            bool retValue = true;
+
+            if (model == null) 
+            {
+                // at loading
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 1.0);
+                }
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(RSSViewModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+        
+            return retValue;
        }
    }
 }
--- a/CampusAppWP8/CampusAppWP8/Feed/Lecture/LectureFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Lecture/LectureFeed.cs
@@ -1,67 +0,0 @@
-//-----------------------------------------------------------------------
-// <copyright file="LectureFeed.cs" company="BTU/IIT">
-//     Company copyright tag.
-// </copyright>
-// <author>stubbfel</author>
-// <sience>13.06.2013</sience>
-//----------------------------------------------------------------------
-namespace CampusAppWP8.Feed.Lecture
-{
-    using System;
-    using CampusAppWP8.Model.Lecture;
-    using CampusAppWP8.Utility;
-    
-    /// <summary>
-    /// Class for the feed of the Lecture
-    /// </summary>
-    /// <remarks>
-    /// need the XmlAPI
-    /// </remarks>
-    public class LectureFeed : XmlFeed<LectureList>
-    {
-        /// <summary>
-        /// Initializes a new instance of the <see cref="LectureFeed" /> class.
-        /// </summary>
-        /// <param name="url">the RequestUrl</param>
-        public LectureFeed(Uri url)
-            : base(url, "Lecture.xml")
-        {
-            this.validRootName = "lsf_auszug";
-        }
-
-        /// <summary>
-        /// Method create the RequestUrl
-        /// </summary>
-        /// <remarks>
-        /// have to refactors
-        /// </remarks>
-        /// <param name="semester">value of the semester</param>
-        /// <param name="degree">value of the degree</param>
-        /// <param name="course">value of the course</param>
-        /// <param name="from">value of the from</param>
-        /// <param name="to">value of the to</param>
-        /// <returns>return the requestUrl</returns>
-        public static Uri CreateFeedUrl(string semester, string degree, string course, string from, string to)
-        {
-            return new Uri("http://www.zv.tu-cottbus.de/LSFveranst/LSF4?Semester=" + semester + "&Abschluss=" + degree + "&Studiengang=" + course + "&Von=" + from + "&Bis=" + to);
-        }
-
-        /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
-        /// </summary>
-        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
-        {
-            return false;
-        }
-
-        /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
-        /// </summary>
-        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
-        {
-            return false;
-        }
-    }
-}
--- a/CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs
@@ -0,0 +1,90 @@
+//-----------------------------------------------------------------------
+// <copyright file="ClubLinkFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Link
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Link;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// This Class is for ClubLinkFeeds
+    /// </summary>
+    public class ClubLinkFeed : XmlModel<LinkListModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="ClubLinkFeed" /> class.
+        /// </summary>
+        public ClubLinkFeed()
+            : base(ModelType.FileAndFeed, Constants.FileLink_ClubLinks, Constants.UrlLink_ClubLinks)
+        {
+            this.isFileUpToDate += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDate += new IsModelUpToDate(this.CheckIsModelUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(LinkListModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(LinkListModel model, FileInfo fileInfo)
+        {
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Check if the model or file is up-to-date.
+        /// </summary>
+        /// <param name="lastModified">Date of the last modification</param>
+        /// <returns>true, if is up-to-date, otherwise false</returns>
+        private bool CheckIsUpToDate(DateTime lastModified)
+        {
+            DateTime temp = lastModified.AddDays(1);
+
+            int diff = temp.CompareTo(DateTime.Now);
+
+            if (diff < 0)
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        #endregion
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
@@ -0,0 +1,90 @@
+//-----------------------------------------------------------------------
+// <copyright file="CommonLinkFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Link
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Link;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// This Class is for CommonLinkFeeds
+    /// </summary>
+    public class CommonLinkFeed : XmlModel<LinkListModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="CommonLinkFeed" /> class.
+        /// </summary>
+        public CommonLinkFeed()
+            : base(ModelType.FileAndFeed, Constants.FileLink_CommonLinks, Constants.UrlLink_CommonLinks)
+        {
+            this.isFileUpToDate += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDate += new IsModelUpToDate(this.CheckIsModelUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(LinkListModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(LinkListModel model, FileInfo fileInfo)
+        {
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Check if the model or file is up-to-date.
+        /// </summary>
+        /// <param name="lastModified">Date of the last modification</param>
+        /// <returns>true, if is up-to-date, otherwise false</returns>
+        private bool CheckIsUpToDate(DateTime lastModified)
+        {
+            DateTime temp = lastModified.AddDays(1);
+
+            int diff = temp.CompareTo(DateTime.Now);
+
+            if (diff < 0)
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        #endregion
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs
@@ -8,14 +8,15 @@
 namespace CampusAppWP8.Feed.Mensa
 {
    using System;
-    using System.Collections.ObjectModel;
+    using System.IO;
+    using CampusAppWP8.Model;
    using CampusAppWP8.Model.Mensa;
-    using CampusAppWP8.Utility;
+    using CampusAppWP8.Resources;

    /// <summary>
-    /// This Class is for MesaFeeds
+    /// This Class is for MensaFeeds
    /// </summary>
-    public class MensaFeed : XmlFeed<MenuWeekModel>
+    public class MensaFeed : XmlModel<MenuWeekModel>
    {
        #region Constructor

@@ -23,40 +24,46 @@ namespace CampusAppWP8.Feed.Mensa
        ///  Initializes a new instance of the <see cref="MensaFeed" /> class.
        /// </summary>
        public MensaFeed()
-            : base(URLList.MensaFeedURL, FileList.MensaXmlFile)
+            : base(ModelType.FileAndFeed, Constants.FileMensa_Shedule, Constants.UrlMensa_Week)
        {
+            this.isFileUpToDate += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDate += new IsModelUpToDate(this.CheckIsModelUpToDate);
        }

        #endregion

        #region Method

-        #region Protected
-
-        /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
-        /// </summary>
-        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
-        {
-            DateTime lastModified = this.Model.CreateTime;
-            return this.CheckIsUpToDate(lastModified);
-        }
-
-        /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
-        /// </summary>
-        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
-        {
-            DateTime lastModified = FileManager.GetFileInfo(FileName).LastWriteTime;
-            return this.CheckIsUpToDate(lastModified);
-        }
-
-        #endregion
-
        #region Private

+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(MenuWeekModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(MenuWeekModel model, FileInfo fileInfo)
+        {
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
        /// <summary>
        /// Method check if the last modification was later as the NewMenuWeekDay
        /// </summary>
--- a/CampusAppWP8/CampusAppWP8/Feed/News/NewsFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/News/NewsFeed.cs
@@ -1,42 +1,99 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-using CampusAppWP8.Model.events_news;
-using CampusAppWP8.Utility;
-
+//-----------------------------------------------------------------------------
+// <copyright file="NewsFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
 namespace CampusAppWP8.Feed.News
 {
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.RSS;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
    /// <summary>
    /// News Feed.
    /// </summary>
-    public class NewsFeed : XmlFeed<RSSViewModel>
+    public class NewsFeed : XmlModel<RSSViewModel>
    {
        /// <summary>
-        /// Default constructor.
+        /// Initializes a new instance of the <see cref="NewsFeed" /> class.
        /// </summary>
-        public NewsFeed() : base(URLList.NewsFeedURL, "NewsFeed.xml")
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public NewsFeed(bool autoLoad = true)
+            : base(ModelType.FileAndFeed, Constants.FileNews_Name, Constants.UrlNews_Addr)
        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
        }

        /// <summary>
        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
        /// </summary>
+        /// <param name="model">model object</param>
        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
+        private bool CheckIsModelUpToDate(RSSViewModel model)
        {
-            return false;
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 1.0);
+            }
+
+            return retValue;
        }

        /// <summary>
        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">info object of the file</param>
        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
+        private bool CheckIsFileUpToDateOnLoad(RSSViewModel model, FileInfo info)
        {
-            return true;
+            bool retValue = true;
+
+            if (model == null) 
+            {
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 1.0);
+                }
+            }
+            
+            return retValue;
+        }
+        
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">info object of the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(RSSViewModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+        
+            return retValue;
        }
    }
 }
--- a/CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs
@@ -0,0 +1,106 @@
+//-----------------------------------------------------------------------
+// <copyright file="OpeninghoursFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Openinghours
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Openinghours;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// This Class is for MesaFeeds
+    /// </summary>
+    public class OpeninghoursFeed : XmlModel<OpeninghoursModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="OpeninghoursFeed" /> class.
+        /// </summary>
+        public OpeninghoursFeed()
+            : base(ModelType.FileAndFeed, Constants.FileOpeningHours_OpeningHours,  Constants.UrlOpeningHours_OpeningHours)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(OpeninghoursModel model)
+        {
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 7.0);
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="info">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnLoad(OpeninghoursModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if (model == null)
+            {
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 7.0);
+                }
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="info">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(OpeninghoursModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+
+            return retValue;
+        }
+
+        #endregion
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs
@@ -0,0 +1,90 @@
+//-----------------------------------------------------------------------
+// <copyright file="StudentCouncilFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.StudentCouncil
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.StudentCouncil;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// This Class is for  StudentCouncilFeed
+    /// </summary>
+    public class StudentCouncilFeed : XmlModel<StudentCouncilListModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="StudentCouncilFeed" /> class.
+        /// </summary>
+        public StudentCouncilFeed()
+            : base(ModelType.FileAndFeed, Constants.FileStudentCouncil_StudentCouncils, Constants.UrlStudentCouncil_StudentCouncils)
+        {
+            this.isFileUpToDate += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDate += new IsModelUpToDate(this.CheckIsModelUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(StudentCouncilListModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(StudentCouncilListModel model, FileInfo fileInfo)
+        {
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Check if the model or file is up-to-date.
+        /// </summary>
+        /// <param name="lastModified">Date of the last modification</param>
+        /// <returns>true, if is up-to-date, otherwise false</returns>
+        private bool CheckIsUpToDate(DateTime lastModified)
+        {
+            DateTime temp = lastModified.AddDays(1);
+
+            int diff = temp.CompareTo(DateTime.Now);
+
+            if (diff < 0)
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        #endregion
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Campusmap/MapModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Campusmap/MapModel.cs
@@ -0,0 +1,177 @@
+//-----------------------------------------------------------------------
+// <copyright file="MapModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Campusmap
+{
+    using System;
+    using System.Windows;
+    using System.Windows.Controls;
+    using System.Windows.Media.Imaging;
+
+    /// <summary>
+    /// This Class manage the properties of a Map
+    /// </summary>
+    public class MapModel
+    {
+        #region Constructors
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="MapModel" /> class.
+        /// </summary>
+        public MapModel()
+        {
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the ImageSource of the map
+        /// </summary>
+        public string ImageSource { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageWidth of the map
+        /// </summary>
+        public double ImageWidth { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageHeight of the map
+        /// </summary>
+        public double ImageHeight { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetX of the map
+        /// </summary>
+        public double MapImageOffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetY of the map
+        /// </summary>
+        public double MapImageOffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets the GeoOffsetX of the map
+        /// </summary>
+        public double GeoOffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the GeoOffsetY of the map
+        /// </summary>
+        public double GeoOffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets the Scale (to pixel) of the map
+        /// </summary>
+        public double Scale { get; set; }
+
+        /// <summary>
+        /// Gets or sets the reference point
+        /// </summary>
+        public Point RefPoint { get; set; }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        ///  Method calculate the coordinates of  ScrollToOffsets point
+        /// </summary>
+        /// <param name="point">input point</param>
+        /// <returns>point (in pixel)</returns>
+        public Point GetScrollPoint(Point point)
+        {
+            return this.GetScrollPoint(point.X, point.Y);
+        }
+
+        /// <summary>
+        ///  Method calculate the coordinates of ScrollToOffsets point
+        /// </summary>
+        /// <remarks>the input-point will be shown in the center</remarks>
+        /// <param name="x">x - coordinate</param>
+        /// <param name="y">y - coordinate</param>
+        /// <returns>point (in pixel)</returns>
+        public Point GetScrollPoint(double x, double y)
+        {
+            x = this.RefPoint.X + this.MapImageOffsetX + x;
+            y = this.RefPoint.Y + this.MapImageOffsetY - y;
+            return new Point(x, y);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position 
+        /// </summary>
+        /// <param name="x">the x- coordinate</param>
+        /// <param name="y">the y-coordinate</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPin(double x, double y)
+        {
+            Point position = new Point(x, y);
+            return this.AddPin(position);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position depend of the <see cref="RefPoint" />
+        /// </summary>
+        /// <param name="x">the x-coordinate</param>
+        /// <param name="y">the y-coordinate</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPinFromRefPoint(double x, double y)
+        {
+            Point position = new Point(this.RefPoint.X + x, this.RefPoint.Y - y);
+            return this.AddPin(position);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position depend of the <see cref="RefPoint" />
+        /// </summary>
+        /// <param name="position">input point</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPinFromRefPoint(Point position)
+        {
+            return this.AddPinFromRefPoint(position.X, position.Y);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position 
+        /// </summary>
+        /// <param name="position">input point</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPin(Point position)
+        {
+            MapPinModel pin = new MapPinModel() { Position = position };
+            Image pinImg = new Image() { Source = new BitmapImage(new Uri(pin.ImageSource, UriKind.Relative)), Width = pin.ImageWidth };
+            Canvas.SetTop(pinImg, pin.Position.Y);
+            Canvas.SetLeft(pinImg, pin.Position.X);
+            return pinImg;
+        }
+
+        /// <summary>
+        /// Convert a coordinates to coordinates which address pixels
+        /// </summary>
+        /// <param name="x">the x-coordinate</param>
+        /// <param name="y">the y-coordinate</param>
+        /// <returns>Point in pixel-size</returns>
+        public Point ConverToPixelPoint(double x, double y)
+        {
+            return new Point { X = this.Scale * x, Y = this.Scale * y };
+        }
+
+        /// <summary>
+        /// Convert a coordinates to coordinates which address pixels
+        /// </summary>
+        /// <param name="point">not scaled point</param>
+        /// <returns>Point in pixel-size</returns>
+        public Point ConverToPixelPoint(Point point)
+        {
+            return this.ConverToPixelPoint(point.X, point.Y);
+        }
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Campusmap/MapPinModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Campusmap/MapPinModel.cs
@@ -0,0 +1,106 @@
+//-----------------------------------------------------------------------
+// <copyright file="MapPinModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Campusmap
+{
+    using System.Windows;
+
+    /// <summary>
+    /// This Class manage the properties of a MapPin
+    /// </summary>
+    public class MapPinModel
+    {
+        #region Member
+
+        /// <summary>
+        /// Variable of the actual position of the pin
+        /// </summary>
+        private Point position;
+
+        #endregion
+        #region Constructor
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="MapPinModel" /> class.
+        /// </summary>
+        public MapPinModel()
+        {
+            this.ImageSource = "/Assets/icons/search_159_light.png";
+            this.ImageWidth = 60;
+            this.ImageHeight = 60;
+            this.PinImageOffsetX = -24;
+            this.PinImageOffsetY = -24;
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the ImageSource of the pin
+        /// </summary>
+        public string ImageSource { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageWidth of the pin
+        /// </summary>
+        public double ImageWidth { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageHeight of the pin
+        /// </summary>
+        public double ImageHeight { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetX of the pin
+        /// </summary>
+        public double PinImageOffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetY of the pin
+        /// </summary>
+        public double PinImageOffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets position of the pin
+        /// </summary>
+        public Point Position
+        {
+            get
+            {
+                return this.position;
+            }
+
+            set
+            {
+                // null assert
+                if (value == null)
+                {
+                    return;
+                }
+
+                if (this.position == null)
+                {
+                    this.position = value;
+                    return;
+                }
+
+                // check the x-value
+                if (value.X + this.PinImageOffsetX != this.position.X)
+                {
+                    this.position.X = value.X + this.PinImageOffsetX;
+                }
+
+                // check the y-value
+                if (value.Y + this.PinImageOffsetY != this.position.Y)
+                {
+                    this.position.Y = value.Y + this.PinImageOffsetY;
+                }
+            }
+        }
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Departments/ChairModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Departments/ChairModel.cs
@@ -1,88 +1,126 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="ChairModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Departments
 {
+    using System.Globalization;
+    using System.Xml.Serialization;
+
    /// <summary>
    /// Class to hold information about a professorship chair.
    /// </summary>
-    public class ChairModel : BaseModel
+    public class ChairModel
    {
-        private string name_de;     // german name of the chair
-        private string url;         // link-url to the chair homepage
-        private string name_en;     // english name of the chair
+        /// <summary>
+        /// German name of the chair.
+        /// </summary>
+        private string nameDE = string.Empty;

        /// <summary>
-        /// Default Constructor. Set every class variable to default value.
+        /// Link to the chair page.
+        /// </summary>
+        private string url = string.Empty;
+
+        /// <summary>
+        /// English name of the chair.
+        /// </summary>
+        private string nameEN = string.Empty;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ChairModel" /> class.
        /// </summary>
        public ChairModel()
        {
-            this.name_de = String.Empty;
-            this.name_en = String.Empty;
-            this.url = String.Empty;
        }

        /// <summary>
-        /// Constructor. Set the german and english name.
+        /// Initializes a new instance of the <see cref="ChairModel" /> class.
        /// </summary>
-        /// <param name="name">Name of the professorship chair.</param>
+        /// <param name="name">name of the chair</param>
        public ChairModel(string name)
        {
-            this.name_de = name;
-            this.name_en = name;
-            this.url = String.Empty;
+            this.nameDE = name;
+            this.nameEN = name;
        }

        /// <summary>
-        /// Set or return the german name of the chair.
+        /// Gets or sets the german name of the chair.
        /// </summary>
        [XmlAttribute("name_de")]
-        public string Name_DE
+        public string NameDE
        {
-            get { return this.name_de; }
+            get 
+            { 
+                return this.nameDE;
+            }
+
            set 
            {
-                if (value != this.name_de)
+                if (value != this.nameDE)
                {
-                    this.name_de = value;
-                    NotifyPropertyChanged("chair");
+                    this.nameDE = value;
                }
            }
        }

        /// <summary>
-        /// Set or return the english name of the chair.
+        /// Gets or sets the english name of the chair.
        /// </summary>
        [XmlAttribute("name_en")]
-        public string Name_EN
+        public string NameEN
        {
-            get { return this.name_en; }
+            get 
+            { 
+                return this.nameEN;
+            }
+
            set
            {
-                if (value != this.name_en)
+                if (value != this.nameEN)
                {
-                    this.name_en = value;
-                    NotifyPropertyChanged("chair");
+                    this.nameEN = value;
                }
            }
        }

        /// <summary>
-        /// Set or return the url of the chair homepage.
+        /// Gets or sets the url of the chair homepage.
        /// </summary>
        [XmlAttribute("url")]
        public string Url
        {
-            get { return this.url; }
+            get 
+            { 
+                return this.url;
+            }
+
            set 
            {
                if (value != this.url)
                {
                    this.url = value;
-                    NotifyPropertyChanged("chair");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized name of the chair.
+        /// </summary>
+        public string Name
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.NameDE;
+                }
+                else
+                {
+                    return this.NameEN;
                }
            }
        }
--- a/CampusAppWP8/CampusAppWP8/Model/Departments/DepartmentModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Departments/DepartmentModel.cs
@@ -1,86 +1,91 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Windows;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="DepartmentModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Departments
 {
-    public class DepartmentModel : BaseModel
-    {
-        [XmlElement("chair")]
-        public ObservableCollection<ChairModel> _chairs { get; set; }
-        
-        private string _name = "d_mod";
-        private Visibility visible;
+    using System;
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;

+    /// <summary>
+    /// View model for department page.
+    /// </summary>
+    [XmlRoot("root")]
+    public class DepartmentModel
+    {
+        /// <summary>
+        /// Object to store the time when the instance was created. 
+        /// </summary>
+        private DateTime createTime;
+
+        /// <summary>
+        /// List of faculties.
+        /// </summary>
+        private ObservableCollection<FacultyModel> faculties;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DepartmentModel" /> class.
+        /// </summary>
        public DepartmentModel()
        {
-            this.visible = Visibility.Collapsed;
-            this.Chairs = new ObservableCollection<ChairModel>();
-            //this.LoadData();
+            this.Faculties = new ObservableCollection<FacultyModel>();
+            this.createTime = DateTime.Now;
        }

-        public DepartmentModel(string name)
-        {
-            this.visible = Visibility.Collapsed;
-            _name = name;
-            this.Chairs = new ObservableCollection<ChairModel>();
-            //this.LoadData();
-        }
-
-        public void LoadData()
-        {
-            this.Chairs.Add(new ChairModel("LS 1"));
-            this.Chairs.Add(new ChairModel("LS 2"));
-            this.Chairs.Add(new ChairModel("LS 3"));
-            this.Chairs.Add(new ChairModel("LS 4"));
-        }
-
-        public ObservableCollection<ChairModel> Chairs
+        /// <summary>
+        /// Gets or sets the faculty list.
+        /// </summary>
+        [XmlArray("professorships")]
+        [XmlArrayItem("faculty")]
+        public ObservableCollection<FacultyModel> Faculties
        {
            get
            {
-                return _chairs;
+                return this.faculties;
            }
+
            set
            {
-                if (value != _chairs)
+                if (value != this.faculties)
                {
-                    _chairs = value;
-                    NotifyPropertyChanged("department");
+                    this.faculties = value;
                }
            }
        }

-        public string Name
+        /// <summary>
+        /// Gets the creation time.
+        /// </summary>
+        public DateTime CreateTime
        {
            get
            {
-                return _name;
-            }
-            set
-            {
-                if (value != _name)
-                {
-                    _name = value;
-                    NotifyPropertyChanged("chair");
-                }
+                return this.createTime;
            }
        }

-        public Visibility Visible
+        /// <summary>
+        /// Check if the content of the faculty lists hast changed since the
+        /// last call of this function.
+        /// </summary>
+        /// <returns>true, if changes happen since last request, otherwise false</returns>
+        public bool HasChanged()
        {
-            get { return this.visible; }
-            set
+            bool retValue = false;
+
+            foreach (FacultyModel temp in this.Faculties)
            {
-                if (value != this.visible)
+                if ((temp.HasChanged() == true) && (retValue == false))
                {
-                    this.visible = value;
+                    retValue = true;
                }
            }
+
+            return retValue;
        }
    }
 }
--- a/CampusAppWP8/CampusAppWP8/Model/Departments/DepartmentViewModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Departments/DepartmentViewModel.cs
@@ -1,39 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Xml.Serialization;
-
-namespace CampusAppWP8.Model.Departments
-{
-    [XmlRoot("root")]
-    public class DepartmentViewModel : BaseViewModel
-    {
-        [XmlArray("professorships")]
-        [XmlArrayItem("faculty")]
-        public ObservableCollection<FacultyModel> _faculties { get; set; }
-
-        public DepartmentViewModel()
-        {
-            this.Faculties = new ObservableCollection<FacultyModel>();
-        }
-
-        public ObservableCollection<FacultyModel> Faculties
-        {
-            get
-            {
-                return _faculties;
-            }
-            set
-            {
-                if (value != _faculties)
-                {
-                    _faculties = value;
-                    NotifyPropertyChanged("foodDays");
-                }
-            }
-        }
-    }
-}
--- a/CampusAppWP8/CampusAppWP8/Model/Departments/FacultyModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Departments/FacultyModel.cs
@@ -1,62 +1,238 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-using CampusAppWP8.Resources;
-
+//-----------------------------------------------------------------------
+// <copyright file="FacultyModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Departments
 {
-    public class FacultyModel : BaseModel
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
+    using CampusAppWP8.Resources;
+    
+    /// <summary>
+    /// Model for holding the faculty information.
+    /// </summary>
+    public class FacultyModel
    {
-        [XmlElement("chair")]
-        public ObservableCollection<ChairModel> chairs { get; set; }
-        //public ObservableCollection<DepartmentModel> _faculties { get; set; }
-        
-        private string name = "t_fak";
+        /// <summary>
+        /// Object to hold the information of the chair containing to this
+        /// faculty.
+        /// </summary>
+        private ObservableCollection<ChairModel> chairs;
        
+        /// <summary>
+        /// Name of the faculty.
+        /// </summary>
+        private string name = string.Empty;
+
+        /// <summary>
+        /// For checking of change.
+        /// </summary>
+        private bool hasChanged = false;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FacultyModel" /> class.
+        /// </summary>
        public FacultyModel()
        {
-            //this.Faculties = new ObservableCollection<DepartmentModel>();
            this.chairs = new ObservableCollection<ChairModel>();
        }

+        /// <summary>
+        /// Initializes a new instance of the <see cref="FacultyModel" /> class.
+        /// </summary>
+        /// <param name="name">name of the faculty</param>
        public FacultyModel(string name)
        {
            this.name = name;
-            //this.Faculties = new ObservableCollection<DepartmentModel>();
            this.chairs = new ObservableCollection<ChairModel>();
        }

+        /// <summary>
+        /// Gets or sets the list of the chairs containing to this faculty.
+        /// </summary>
+        [XmlElement("chair")]
        public ObservableCollection<ChairModel> Chairs
        {
-            get { return this.chairs; }
+            get 
+            { 
+                return this.chairs; 
+            }
+            
            set
            {
                if (value != this.chairs)
                {
                    this.chairs = value;
-                    NotifyPropertyChanged("faculty");
                }
            }
        }

-        [XmlAttribute("id")]
+        /// <summary>
+        /// Gets the name of the faculty.
+        /// </summary>
        public string Name
        {
            get
            {
                return AppResources.Faculty + " " + this.name;
            }
+        }
+
+        /// <summary>
+        /// Gets or sets the id of the faculty.
+        /// </summary>
+        [XmlAttribute("id")]
+        public string Id
+        {
+            get
+            {
+                return this.name;
+            }
+
            set
            {
-                if (value != this.name)
+                this.name = value;
+            }
+        }
+
+        /// <summary>
+        /// Remove a chair model from the lost.
+        /// </summary>
+        /// <param name="chairName">name of the chair</param>
+        /// <returns>true, if succeeded</returns>
+        public bool RemoveChair(string chairName)
+        {
+            bool retValue = false;
+
+            ChairModel tempChair = null;
+
+            foreach (ChairModel temp in this.Chairs)
+            {
+                if (temp.Name.Equals(chairName) == true)
                {
-                    this.name = value;
-                    NotifyPropertyChanged("faculty");
+                    tempChair = temp;
                }
            }
+
+            if (tempChair != null)
+            {
+                retValue = this.Chairs.Remove(tempChair);
+                this.hasChanged = true;
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Add a chair to the list, if it does not already exist.
+        /// </summary>
+        /// <param name="chairModel">chair model to add</param>
+        /// <returns>true, is succeeded</returns>
+        public bool AddChair(ChairModel chairModel)
+        {
+            bool retValue = false;
+
+            if ((chairModel != null)
+            && (this.Chairs.Contains(chairModel) == false))
+            {
+                bool isIn = false;
+
+                foreach (ChairModel temp in this.Chairs)
+                {
+                    if ((temp.NameDE.Equals(chairModel.NameDE) == true)
+                    || (temp.NameEN.Equals(chairModel.NameEN) == true))
+                    {
+                        isIn = true;
+                    }
+                }
+
+                if (isIn == false)
+                {
+                    this.Chairs.Add(chairModel);
+                    this.hasChanged = true;
+                    retValue = true;
+                }
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Create a chair model and add it to the list, if it does not already
+        /// exist.
+        /// </summary>
+        /// <param name="nameDE">german name of the chair</param>
+        /// <param name="nameEN">english name of the chair</param>
+        /// <param name="url">url of the chair home page</param>
+        /// <returns>true, if succeeded</returns>
+        public bool AddChair(string nameDE, string nameEN, string url)
+        {
+            bool retValue = false;
+
+            bool isIn = false;
+
+            foreach (ChairModel temp in this.Chairs)
+            {
+                if ((temp.NameDE.Equals(nameDE) == true)
+                || (temp.NameEN.Equals(nameEN) == true))
+                {
+                    isIn = true;
+                }
+            }
+
+            if (isIn == false)
+            {
+                ChairModel newModel = new ChairModel();
+                newModel.NameDE = nameDE;
+                newModel.NameEN = nameEN;
+                newModel.Url = url;
+
+                this.Chairs.Add(newModel);
+                this.hasChanged = true;
+                retValue = true;
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Return the chair model of the chair with the specified name.
+        /// </summary>
+        /// <param name="name">name of the chair</param>
+        /// <returns>chair model, if succeeded, otherwise null</returns>
+        public ChairModel GetChairModel(string name)
+        {
+            ChairModel retValue = null;
+
+            foreach (ChairModel temp in this.Chairs)
+            {
+                if (temp.Name.Equals(name) == true)
+                {
+                    retValue = temp;
+                }
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Return true if there were changes in the chair list, otherwise false.
+        /// </summary>
+        /// <param name="reset">when true, the hasChanged flag will be reset</param>
+        /// <returns>true, when changed, otherwise false</returns>
+        public bool HasChanged(bool reset = true)
+        {
+            bool retValue = this.hasChanged;
+
+            if (reset == true)
+            {
+                this.hasChanged = false;
+            }
+
+            return retValue;
        }
    }
 }
--- a/CampusAppWP8/CampusAppWP8/Model/Events/RSSChannelModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Events/RSSChannelModel.cs
@@ -37,6 +37,11 @@ namespace CampusAppWP8.Model.events_news
                if (value != this.item)
                {
                    this.item = value;
+                    int i = 0;
+                    foreach (RSSModel rssItem in this.item)
+                    {
+                        rssItem.Index = i++;
+                    }
                    NotifyPropertyChanged("item");
                }
            }
--- a/CampusAppWP8/CampusAppWP8/Model/Events/RSSModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Events/RSSModel.cs
@@ -108,6 +108,11 @@ namespace CampusAppWP8.Model.events_news
            get { return String.Format("{0:h:mm} Uhr", this.timestamp); }
        }

+        /// <summary>
+        /// Gets or sets the ListIndex
+        /// </summary>
+        public int Index { get; set; }
+
        /// <summary>
        /// Set/Get the link/url of the feed.
        /// </summary>
--- a/CampusAppWP8/CampusAppWP8/Model/Events/RSSViewModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Events/RSSViewModel.cs
@@ -1,47 +0,0 @@
-using CampusAppWP8.Model;
-using System.Collections.ObjectModel;
-using System.Xml.Serialization;
-
-namespace CampusAppWP8.Model.events_news
-{
-    /// <summary>
-    /// ViewModel of the rss feed, containing the feed/channel object.
-    /// </summary>
-    [XmlRoot("root")]
-    public class RSSViewModel : BaseViewModel
-    {
-        /// <summary>
-        /// channel list for the rss feeds.
-        /// </summary>
-        [XmlArray("rss")]
-        [XmlArrayItem("channel")]
-        public ObservableCollection<RSSChannelModel> channel { get; set; }
-        
-        /// <summary>
-        /// Default constructor.
-        /// </summary>
-        public RSSViewModel()
-        {
-            this.channel = new ObservableCollection<RSSChannelModel>();
-        }
-
-        /// <summary>
-        /// Set/Get the channel list.
-        /// </summary>
-        public ObservableCollection<RSSChannelModel> Channel
-        {
-            get
-            {
-                return this.channel;
-            }
-            set
-            {
-                if (value != this.channel)
-                {
-                    this.channel = value;
-                    NotifyPropertyChanged("channel");
-                }
-            }
-        }
-    }
-}
--- a/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureActivity.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureActivity.cs
@@ -82,6 +82,12 @@ namespace CampusAppWP8.Model.Lecture
        [XmlElement("modul")]
        public LectureModule Modul { get; set; }

+        /// <summary>
+        /// Gets or sets LectureTitel
+        /// </summary>
+        [XmlElement("titel")]
+        public string Title { get; set; }
+
        /// <summary>
        /// Gets or sets the lecturers
        /// </summary>
@@ -190,10 +196,10 @@ namespace CampusAppWP8.Model.Lecture
            string result = string.Empty;
            foreach (LectureLecturer tmpLecturer in this.Lecturer)
            {
-                result += tmpLecturer.ToString() + "\n";
+                result +=  StringManager.AddNewLine(tmpLecturer.ToString());
            }

-            this.LecturerString = result.TrimEnd('\n');
+            this.LecturerString = StringManager.RemvoveNewLine(result);
        }

        /// <summary>
@@ -204,10 +210,10 @@ namespace CampusAppWP8.Model.Lecture
            string result = string.Empty;
            foreach (LectureCourse course in this.Course)
            {
-                result += course.Title + "\n";
+                result += StringManager.AddNewLine(course.Title);
            }

-            this.CourseString = result.TrimEnd('\n');
+            this.CourseString = StringManager.RemvoveNewLine(result);
        }

        #endregion
--- a/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureModule.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureModule.cs
@@ -90,7 +90,7 @@ namespace CampusAppWP8.Model.Lecture
        /// </summary>
        private void CreateUrl()
        {
-            this.url = new Uri(Constants.UrlLectureModulBaseAddr + this.number.ToString());
+            this.url = new Uri(Constants.UrlLecture_ModulBaseAddr + this.number.ToString());
        }

        #endregion
--- a/CampusAppWP8/CampusAppWP8/Model/Lecture/LecturePageModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Lecture/LecturePageModel.cs
@@ -0,0 +1,421 @@
+//-----------------------------------------------------------------------
+// <copyright file="LecturePageModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>18.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Lecture
+{
+    using System.Collections.Generic;
+    using System.Linq;
+    using System.Runtime.Serialization;
+    using CampusAppWP8.Model.Utility;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// Model for the LecturePage
+    /// </summary>
+    [DataContract]
+    public class LecturePageModel
+    {
+        #region Members
+
+        /// <summary>
+        /// List for the courses of the BTU
+        /// </summary>
+        /// <remarks>
+        /// need to be extend to full list
+        /// </remarks>
+        private List<ListPickerItemModel> courseList;
+
+        /// <summary>
+        /// List of the degrees
+        /// </summary>
+        private List<ListPickerItemModel> degreeList;
+
+        /// <summary>
+        /// List of the semester
+        /// </summary>
+        private List<ListPickerItemModel> semesterList;
+
+        /// <summary>
+        /// List for the number of semester (from)
+        /// </summary>
+        private List<ListPickerItemModel> fromNumberList;
+
+        /// <summary>
+        /// List for the number of semester (to)
+        /// </summary>
+        private List<ListPickerItemModel> toNumberList;
+
+        /// <summary>
+        /// Variable for the courseIndex
+        /// </summary>
+        private int selectCourseIndex;
+
+        /// <summary>
+        /// Variable for the degreeIndex
+        /// </summary>
+        private int selectDegreeIndex;
+
+        /// <summary>
+        /// Variable for the semesterIndex
+        /// </summary>
+        private int selectSemesterIndex;
+
+        /// <summary>
+        /// Variable for the fromIndex
+        /// </summary>
+        private int selectFromIndex;
+
+        /// <summary>
+        /// Variable for the toIndex
+        /// </summary>
+        private int selectToIndex;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LecturePageModel" /> class.
+        /// </summary>
+        public LecturePageModel()
+        {
+        }
+        #endregion
+
+        #region Proberty
+
+        /// <summary>
+        /// Gets or sets the selected course index
+        /// </summary>
+        [DataMember]
+        public int SelectCourseIndex
+        {
+            get
+            {
+                return this.selectCourseIndex;
+            }
+
+            set
+            {
+                if (value != this.selectCourseIndex && this.courseList != null && value < this.courseList.Count)
+                {
+                    this.selectCourseIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected degree index
+        /// </summary>
+        [DataMember]
+        public int SelectDegreeIndex
+        {
+            get
+            {
+                return this.selectDegreeIndex;
+            }
+
+            set
+            {
+                if (value != this.selectDegreeIndex && this.degreeList != null && value < this.degreeList.Count)
+                {
+                    this.selectDegreeIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected semester-index
+        /// </summary>
+        [DataMember]
+        public int SelectSemesterIndex
+        {
+            get
+            {
+                return this.selectSemesterIndex;
+            }
+
+            set
+            {
+                if (value != this.selectSemesterIndex && this.semesterList != null && value < this.semesterList.Count)
+                {
+                    this.selectSemesterIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected from-index
+        /// </summary>
+        [DataMember]
+        public int SelectFromIndex
+        {
+            get
+            {
+                return this.selectFromIndex;
+            }
+
+            set
+            {
+                if (value != this.selectFromIndex && this.fromNumberList != null && value < this.fromNumberList.Count)
+                {
+                    this.selectFromIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected to-index
+        /// </summary>
+        [DataMember]
+        public int SelectToIndex
+        {
+            get
+            {
+                return this.selectToIndex;
+            }
+
+            set
+            {
+                if (value != this.selectToIndex && this.toNumberList != null && value < this.toNumberList.Count)
+                {
+                    this.selectToIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets List for the courses of the BTU
+        /// </summary>
+        public List<ListPickerItemModel> CourseList
+        {
+            get
+            {
+                return this.courseList;
+            }
+        }
+
+        /// <summary>
+        /// Gets List of the degrees
+        /// </summary>
+        public List<ListPickerItemModel> DegreeList
+        {
+            get
+            {
+                return this.degreeList;
+            }
+        }
+
+        /// <summary>
+        /// Gets List of the semester
+        /// </summary>
+        public List<ListPickerItemModel> SemesterList
+        {
+            get
+            {
+                return this.semesterList;
+            }
+        }
+
+        /// <summary>
+        /// Gets List for the number of semester
+        /// </summary>
+        public List<ListPickerItemModel> FromNumberList
+        {
+            get
+            {
+                return this.fromNumberList;
+            }
+        }
+
+        /// <summary>
+        /// Gets the NumberList
+        /// </summary>
+        public List<ListPickerItemModel> ToNumberList
+        {
+            get
+            {
+                return this.toNumberList;
+            }
+        }
+        #endregion
+
+        #region Methods
+
+        #region public
+
+        /// <summary>
+        /// Load all ListPickerLists
+        /// </summary>
+        public void LoadLists()
+        {
+            this.LoadCourseList();
+            this.LoadDegreeList();
+            this.LoadFromNumberList();
+            this.LoadToNumberList();
+            this.LoadSemesterList();
+        }
+
+        #endregion
+
+        #region private
+
+        /// <summary>
+        /// Load the NumberList
+        /// </summary>
+        public void LoadFromNumberList()
+        {
+            string selectValue = null;
+            if (this.fromNumberList != null)
+            {
+                selectValue = this.fromNumberList[this.SelectFromIndex].Value;
+            }
+
+            this.fromNumberList = this.CreateNumberList(1, 10);
+            this.SelectFromIndex = this.GetIndexOrDefault(this.fromNumberList, selectValue);
+        }
+
+        /// <summary>
+        /// Load the NumberList
+        /// </summary>
+        public void LoadToNumberList()
+        {
+            string selectValue = null;
+            if (this.toNumberList != null)
+            {
+                selectValue = this.toNumberList[this.SelectToIndex].Value;
+            }
+
+            this.toNumberList = this.CreateNumberList(this.SelectFromIndex + 1, 10);
+            this.SelectToIndex = this.GetIndexOrDefault(this.toNumberList, selectValue);
+        }
+
+        /// <summary>
+        /// Method create a NumberList
+        /// </summary>
+        /// <param name="startvalue">startValue of the list</param>
+        /// <param name="endvalue">endValue of the list</param>
+        /// <returns>return list</returns>
+        private List<ListPickerItemModel> CreateNumberList(int startvalue, int endvalue)
+        {
+            List<ListPickerItemModel> list = new List<ListPickerItemModel>();
+            string degree = this.DegreeList[this.SelectDegreeIndex].Value;
+
+            for (int i = startvalue; i <= endvalue; i++)
+            {
+                if ((i > 4 && "88".Equals(degree)) || (i > 6 && "82".Equals(degree)))
+                {
+                    break;
+                }
+
+                list.Add(new ListPickerItemModel() { Text = i.ToString(), Value = i.ToString() });
+            }
+
+            return list;
+        }
+
+        /// <summary>
+        /// Load the SemesterList
+        /// </summary>
+        private void LoadSemesterList()
+        {
+            this.semesterList = new List<ListPickerItemModel>();
+            this.semesterList.Add(new ListPickerItemModel() { Text = "SoSe 13", Value = "20131" });
+            this.semesterList.Add(new ListPickerItemModel() { Text = "WiSe 13/14", Value = "20132" });
+            this.semesterList.Add(new ListPickerItemModel() { Text = "SoSe 14", Value = "20131" });
+        }
+
+        /// <summary>
+        /// Load the DegreeList
+        /// </summary>
+        private void LoadDegreeList()
+        {
+            this.degreeList = new List<ListPickerItemModel>();
+            this.degreeList.Add(new ListPickerItemModel() { Text = AppResources.Degree_Bachelor, Value = "82" });
+            this.degreeList.Add(new ListPickerItemModel() { Text = AppResources.Degree_Master, Value = "88" });
+            this.degreeList.Add(new ListPickerItemModel() { Text = AppResources.Degree_Diploma, Value = "11" });
+        }
+
+        /// <summary>
+        /// Load the DegreeList
+        /// </summary>
+        private void LoadCourseList()
+        {
+            this.courseList = new List<ListPickerItemModel>();
+            this.courseList.Add(new ListPickerItemModel() { Text = "Architektur", Value = "013" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Bauingenieurwesen", Value = "017" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Betriebswirtschaftslehre", Value = "021" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Wirtschaftsrecht für Technologieunternehmen", Value = "042" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Elektrotechnik", Value = "048" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Informatik ", Value = "079" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Maschinenbau", Value = "104" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Mathematik", Value = "105" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Physik ", Value = "128" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Wirtschaftsingenieurwesen", Value = "179" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Wirtschaftswissenschaften ", Value = "184" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Biomedizinische Gerätetechnik ", Value = "215" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Verfahrenstechnik", Value = "226" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Wirtschaftsmathematik ", Value = "276" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Kultur und Technik ", Value = "711" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Physik der Halbleiter-Technologie", Value = "744" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Angewandte Mathematik ", Value = "749" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Technologie- und Innovationsmanagement", Value = "764" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Stadt- und Regionalplanung", Value = "766" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Informations- und Medientechnik ", Value = "767" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "World Heritage Studies", Value = "768" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Umweltingenieurwesen und Verfahrenstechnik", Value = "770" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Environmental and Resource Management", Value = "771" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Landnutzung und Wasserbewirtschaftung", Value = "772" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Bauen und Erhalten", Value = "773" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Umweltingenieurwesen", Value = "774" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "eBusiness", Value = "794" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Civil Engineering", Value = "798" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Structural Engineering", Value = "799" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Electrical Power Engineering ", Value = "800" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Euro Hydroinformatics and Water Management", Value = "841" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Technologien Biogener Rohstoffe", Value = "842" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Environmental Technologies", Value = "843" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Process Engineering and Plant Design", Value = "844" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Architekturvermittlung", Value = "845" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Nachwachsende Rohstoffe und Erneuerbare Energien", Value = "851" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Energieträger aus Biomasse und Abfällen", Value = "852" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Power Engineering", Value = "853" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Verfahrenstechnik - Prozess- und Anlagentechnik", Value = "857" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Architektur.Studium.Generale", Value = "858" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Verarbeitungstechnologien der Werkstoffe", Value = "860" });
+            this.courseList.Add(new ListPickerItemModel() { Text = "Forensic Sciences and Engineering", Value = "871" });
+            this.courseList = this.courseList.OrderBy(o => o.Text).ToList();
+        }
+
+        /// <summary>
+        /// Method return a the Index of an item which has a certain value
+        /// </summary>
+        /// <param name="list">list for items</param>
+        /// <param name="value">a certain value</param>
+        /// <returns>return index of value or default(0)</returns>
+        private int GetIndexOrDefault(List<ListPickerItemModel> list, string value)
+        {
+            int index = 0;
+            int i = 0;
+            foreach (ListPickerItemModel item in list)
+            {
+                if (item.Value.Equals(value))
+                {
+                    index = i;
+                    break;
+                }
+
+                i++;
+            }
+
+            return index;
+        }
+        #endregion
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Link/LinkListModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Link/LinkListModel.cs
@@ -0,0 +1,64 @@
+//-----------------------------------------------------------------------------
+// <copyright file="LinkListModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Link
+{
+    using System;
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for a list of links.
+    /// </summary>
+    [XmlRoot("root")]
+    public class LinkListModel
+    {
+        #region Member
+
+        /// <summary>
+        /// Time when the model was created.
+        /// </summary>
+        private readonly DateTime createTime;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LinkListModel" /> class.
+        /// </summary>
+        public LinkListModel()
+        {
+            this.createTime = DateTime.Now;
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets feed information item list.
+        /// </summary>
+        [XmlArray("data")]
+        [XmlArrayItem("link")]
+        public ObservableCollection<LinkModel> Links { get; set; }
+
+        /// <summary>
+        /// Gets the creation time of the model.
+        /// </summary>
+        public DateTime CreateTime
+        {
+            get
+            {
+                return this.createTime;
+            }
+        }
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Link/LinkModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Link/LinkModel.cs
@@ -0,0 +1,173 @@
+//-----------------------------------------------------------------------------
+// <copyright file="LinkModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Link
+{
+    using System.Globalization;
+    using System.Xml.Serialization;
+    
+    /// <summary>
+    ///  Model for menu
+    /// </summary>
+    public class LinkModel
+    {
+        #region Member
+        
+        /// <summary>
+        /// German version of the link title.
+        /// </summary>
+        private string titleDE;
+
+        /// <summary>
+        /// English version of the link title.
+        /// </summary>
+        private string titleEN;
+
+        /// <summary>
+        /// German version of the link.
+        /// </summary>
+        private string linkDE;
+
+        /// <summary>
+        /// English version of the link.
+        /// </summary>
+        private string linkEN;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LinkModel" /> class.
+        /// </summary>
+        public LinkModel()
+        {
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the german title of the link.
+        /// </summary>
+        [XmlAttribute("title_de")]
+        public string Title_DE
+        {
+            get
+            {
+                return this.titleDE;
+            }
+
+            set
+            {
+                if (value != this.titleDE)
+                {
+                    this.titleDE = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the english title of the link.
+        /// </summary>
+        [XmlAttribute("title_en")]
+        public string Title_EN
+        {
+            get
+            {
+                return this.titleEN;
+            }
+
+            set
+            {
+                this.titleEN = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the german link.
+        /// </summary>
+        [XmlAttribute("link_de")]
+        public string Link_DE
+        {
+            get
+            {
+                return this.linkDE;
+            }
+
+            set
+            {
+                if (value != this.linkDE)
+                {
+                    this.linkDE = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the english link.
+        /// </summary>
+        [XmlAttribute("link_en")]
+        public string Link_EN
+        {
+            get
+            {
+                return this.linkEN;
+            }
+
+            set
+            {
+                if (value != this.linkEN)
+                {
+                    this.linkEN = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized title. If the phone is set to german language,
+        /// the german title will be returned otherwise the english title.
+        /// </summary>
+        public string Title
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.titleDE;
+                }
+                else
+                {
+                    return this.titleEN;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized link. if the phone is set to german language,
+        /// the german comment will be returned otherwise the english link.
+        /// </summary>
+        public string Link
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.Link_DE;
+                }
+                else
+                {
+                    return this.Link_EN;
+                }
+            }
+        }
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
@@ -0,0 +1,434 @@
+//-----------------------------------------------------------------------------
+// <copyright file="MainModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>05.07.2013</sience>
+//-----------------------------------------------------------------------------
+namespace CampusAppWP8
+{
+    using System;
+    using System.IO;
+    using System.Net;
+    using System.Text;
+    using CampusAppWP8.Utility;
+
+    /// <summary>
+    /// Base model io handling class.
+    /// </summary>
+    /// <typeparam name="T">model type</typeparam>
+    public abstract class MainModel<T> : IDisposable
+    {
+        /// <summary>
+        /// Model io type.
+        /// </summary>
+        private ModelType modelType;
+
+        /// <summary>
+        /// Model object.
+        /// </summary>
+        private T model = default(T);
+
+        /// <summary>
+        /// File object.
+        /// </summary>
+        private CampusAppWP8.Utility.File file = null;
+
+        /// <summary>
+        /// Web object.
+        /// </summary>
+        private HttpRequest api = null;
+
+        /// <summary>
+        /// Filename of saved data.
+        /// </summary>
+        private string fileName = string.Empty;
+
+        /// <summary>
+        /// Url of the feed data.
+        /// </summary>
+        private Uri httpApiUri = null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MainModel{T}" /> class.
+        /// </summary>
+        /// <param name="modelType">Model IO type</param>
+        /// <param name="fileName">name of the file</param>
+        /// <param name="url">url of the feed</param>
+        public MainModel(ModelType modelType, string fileName, string url)
+        {
+            this.modelType = modelType;
+
+            if ((url != null) && (url.Equals(string.Empty) == false))
+            {
+                this.httpApiUri = new Uri(url, UriKind.Absolute);
+            }
+
+            this.fileName = fileName;
+
+            if ((this.IsFile() == true)
+                && (fileName.Equals(string.Empty) == false))
+            {
+                this.InitFile(CampusAppWP8.Utility.File.IOTypeRead.ReadSync, CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync);
+            }
+
+            if ((this.IsHttpApi() == true)
+            && (url.Equals(string.Empty) == false))
+            {
+                this.InitHttpApi();
+            }
+        }
+
+        /// <summary>
+        /// Finalizes an instance of the <see cref="MainModel{T}" /> class.
+        /// </summary>
+        ~MainModel()
+        {
+            this.SaveData();
+        }
+
+        /// <summary>
+        /// Delegate of the OnLoading callback function.
+        /// </summary>
+        public delegate void OnLoading();
+
+        /// <summary>
+        /// Delegate of the OnLoaded callback function.
+        /// </summary>
+        public delegate void OnLoaded();
+
+        /// <summary>
+        /// Delegate of the OnSaving callback function.
+        /// </summary>
+        public delegate void OnSaving();
+
+        /// <summary>
+        /// Delegate of the OnSaved callback function.
+        /// </summary>
+        public delegate void OnSaved();
+
+        /// <summary>
+        /// Delegate of the IsModelUpToDate callback function.
+        /// </summary>
+        /// <param name="model">data model</param>
+        /// <returns>true, model is up to date</returns>
+        public delegate bool IsModelUpToDate(T model);
+
+        /// <summary>
+        /// Delegate of the IsFileUpToDate callback function.
+        /// </summary>
+        /// <param name="model">data model</param>
+        /// <param name="fileInfo">info of the file</param>
+        /// <returns>true, is file is up to date</returns>
+        public delegate bool IsFileUpToDate(T model, FileInfo fileInfo);
+
+        /// <summary>
+        /// Callback pointer, called before loading.
+        /// </summary>
+        public event OnLoading onLoading = null;
+
+        /// <summary>
+        /// Callback pointer, called after loading.
+        /// </summary>
+        public event OnLoaded onLoaded = null;
+
+        /// <summary>
+        /// Callback pointer, called before saving.
+        /// </summary>
+        public event OnSaving onSaving = null;
+
+        /// <summary>
+        /// Callback pointer, called after saving.
+        /// </summary>
+        public event OnSaved onSaved = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if file is up to date at loading.
+        /// </summary>
+        public event IsFileUpToDate isFileUpToDateOnLoad = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if file is up to date at saving.
+        /// </summary>
+        public event IsFileUpToDate isFileUpToDateOnSave = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if model is up to date at loading.
+        /// </summary>
+        public event IsModelUpToDate isModelUpToDateOnLoad = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if model is up to date at saving.
+        /// (currently unused)
+        /// </summary>
+        public event IsModelUpToDate isModelUpToDateOnSave = null;
+
+        /// <summary>
+        /// Specifies the I/O type of the model.
+        /// </summary>
+        public enum ModelType
+        {
+            /// <summary>
+            /// Invalid/unset state.
+            /// </summary>
+            INVALID = 0,
+
+            /// <summary>
+            /// File only (01).
+            /// </summary>
+            File = 1,
+
+            /// <summary>
+            /// Feed only (10).
+            /// </summary>
+            Feed = 2,
+
+            /// <summary>
+            /// File and feed (11).
+            /// </summary>
+            FileAndFeed = 3
+        }
+
+        /// <summary>
+        /// Gets or sets the Model.
+        /// </summary>
+        public T Model
+        {
+            get
+            {
+                return this.model;
+            }
+
+            set
+            {
+                this.model = value;
+            }
+        }
+
+        /// <summary>
+        /// Called before finalizing. Can maybe be removed.
+        /// </summary>
+        public void Dispose()
+        {
+            this.SaveData();
+        }
+
+        /// <summary>
+        /// Forces a update from web.
+        /// </summary>
+        public void ForceWebUpdate()
+        {
+            if (this.api != null)
+            {
+                if (this.onLoading != null)
+                {
+                    this.onLoading();
+                }
+
+                this.api.HttpGet(this.httpApiUri, this.OnLoadDataComplete);
+            }
+        }
+
+        /// <summary>
+        /// Load the data if necessary, from web or from file, regarding if
+        /// the file data is up to date.
+        /// </summary>
+        public void LoadData()
+        {
+            bool loadFromFile = true;
+
+            if (this.onLoading != null)
+            {
+                this.onLoading();
+            }
+
+            if (((this.isModelUpToDateOnLoad == null)
+            || (this.isModelUpToDateOnLoad(this.model) == false))
+            && ((this.file != null) || this.api != null))
+            {
+                if (this.file != null)
+                {
+                    if ((this.file.Exist() == false)
+                    || (this.file.GetFileInfo().Length == 0))
+                    {
+                        loadFromFile = false;
+                    }
+
+                    if (((this.isFileUpToDateOnLoad != null) && (this.isFileUpToDateOnLoad(this.model, this.file.GetFileInfo()) == false))
+                    || (this.isFileUpToDateOnLoad == null))
+                    {
+                        loadFromFile = false;
+                    }
+                }
+                else
+                {
+                    loadFromFile = false;
+                }
+
+                if (this.api == null)
+                {
+                    loadFromFile = true;
+                }
+
+                if (loadFromFile == false)
+                {
+                    this.api.HttpGet(this.httpApiUri, this.OnLoadDataComplete);
+                }
+                else
+                {
+                    string data = this.file.ReadFile();
+
+                    if (data != null && !data.Equals(string.Empty))
+                    {
+                        this.DeserializeModel(Encoding.UTF8.GetBytes(data));
+                    }
+                }
+            }
+
+            if (loadFromFile == true)
+            {
+                if (this.onLoaded != null)
+                {
+                    this.onLoaded();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Save the model data if necessary.
+        /// </summary>
+        public void SaveData()
+        {
+            if ((this.file != null)
+            && ((this.isFileUpToDateOnSave == null) || (this.isFileUpToDateOnSave(this.model, this.file.GetFileInfo()) == false)))
+            {
+                if (this.onSaving != null)
+                {
+                    this.onSaving();
+                }
+
+                byte[] data = this.SerializeModel();
+                this.file.WriteFile(data);
+
+                if (this.onSaved != null)
+                {
+                    this.onSaved();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Return the model io type.
+        /// </summary>
+        /// <returns>model io type</returns>
+        public ModelType GetModelType()
+        {
+            return this.modelType;
+        }
+
+        /// <summary>
+        /// Return the model.
+        /// </summary>
+        /// <returns>model object</returns>
+        public T GetModel()
+        {
+            return this.model;
+        }
+
+        /// <summary>
+        /// Abstract declaration of the model deserialize function.
+        /// </summary>
+        /// <param name="modelData">model data as byte array</param>
+        /// <returns>true, is succeeded</returns>
+        protected abstract bool DeserializeModel(byte[] modelData);
+
+        /// <summary>
+        /// Abstract declaration of the model serialize function. 
+        /// </summary>
+        /// <returns>model data as byte array</returns>
+        protected abstract byte[] SerializeModel();
+
+        /// <summary>
+        /// Check if the model io type is file.
+        /// </summary>
+        /// <returns>true, if the model io type has file.</returns>
+        protected bool IsFile()
+        {
+            bool retValue = false;
+
+            if ((this.modelType & ModelType.File) != 0)
+            {
+                retValue = true;
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Check if the model io type is feed.
+        /// </summary>
+        /// <returns>true if the model io type has feed.</returns>
+        protected bool IsHttpApi()
+        {
+            bool retValue = false;
+
+            if ((this.modelType & ModelType.Feed) != 0)
+            {
+                retValue = true;
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Initializes the file object.
+        /// </summary>
+        /// <param name="readType">read io type (Default: sync)</param>
+        /// <param name="writeType">write io type (Default: async)</param>
+        private void InitFile(CampusAppWP8.Utility.File.IOTypeRead readType = CampusAppWP8.Utility.File.IOTypeRead.ReadSync, CampusAppWP8.Utility.File.IOTypeWrite writeType = CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync)
+        {
+            if ((this.IsFile() == true)
+            && (this.file == null))
+            {
+                this.file = new CampusAppWP8.Utility.File(this.fileName, readType, writeType);
+            }
+        }
+
+        /// <summary>
+        /// Initializes the web object.
+        /// </summary>
+        private void InitHttpApi()
+        {
+            if ((this.IsHttpApi() == true)
+            && (this.api == null))
+            {
+                this.api = new HttpRequest();
+            }
+        }
+
+        /// <summary>
+        /// Is called after the loading from web is complete.
+        /// </summary>
+        /// <param name="sender">sending object</param>
+        /// <param name="e">event args</param>
+        private void OnLoadDataComplete(object sender, DownloadStringCompletedEventArgs e)
+        {
+            Exception downloadError = e.Error;
+            if (downloadError != null)
+            {
+                return;
+            }
+
+            string downloadResult = e.Result;
+            if (downloadResult != null && !downloadResult.Equals(string.Empty))
+            {
+                this.DeserializeModel(Encoding.UTF8.GetBytes(downloadResult));
+            }
+
+            if (this.onLoaded != null)
+            {
+                this.onLoaded();
+            }
+        }
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Mensa/MenuModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Mensa/MenuModel.cs
@@ -3,7 +3,7 @@
 //     Company copyright tag.
 // </copyright>
 // <author>stubbfel</author>
-// <sience>03.05.2013</sience>
+// <sience>04.05.2013</sience>
 //----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Mensa
 {
--- a/CampusAppWP8/CampusAppWP8/Model/Mensa/MenuWeekModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Mensa/MenuWeekModel.cs
--- a/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursInstitutionModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursInstitutionModel.cs
@@ -0,0 +1,581 @@
+//-----------------------------------------------------------------------------
+// <copyright file="OpeninghoursInstitutionModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Openinghours
+{
+    using System.Globalization;
+    using System.Windows;
+    using System.Xml.Serialization;
+    
+    /// <summary>
+    ///  Model for menu
+    /// </summary>
+    public class OpeninghoursInstitutionModel
+    {
+        #region Member
+        
+        /// <summary>
+        /// German version of the institution title.
+        /// </summary>
+        private string titleDE = string.Empty;
+
+        /// <summary>
+        /// English version of the institution title.
+        /// </summary>
+        private string titleEN = string.Empty;
+
+        /// <summary>
+        /// Opening hours on monday.
+        /// </summary>
+        private string dayMonday = string.Empty; 
+
+        /// <summary>
+        /// Opening hours on tuesday.
+        /// </summary>
+        private string dayTuesday = string.Empty;
+
+        /// <summary>
+        /// Opening hours on wednesday.
+        /// </summary>
+        private string dayWednesday = string.Empty;
+
+        /// <summary>
+        /// Opening hours on thursday.
+        /// </summary>
+        private string dayThursday = string.Empty;
+
+        /// <summary>
+        /// Opening hours on friday.
+        /// </summary>
+        private string dayFriday = string.Empty;
+
+        /// <summary>
+        /// Opening hours on saturday.
+        /// </summary>
+        private string daySaturday = string.Empty;
+
+        /// <summary>
+        /// Opening hours on sunday.
+        /// </summary>
+        private string daySunday = string.Empty;
+
+        /// <summary>
+        /// Email address of the institution.
+        /// </summary>
+        private string infoEmail = string.Empty;
+
+        /// <summary>
+        /// Phone number of the institution.
+        /// </summary>
+        private string infoPhone = string.Empty;
+
+        /// <summary>
+        /// Building name where the institution is located.
+        /// </summary>
+        private string infoBuilding = string.Empty;
+
+        /// <summary>
+        /// Room where the institution is located.
+        /// </summary>
+        private string infoRoom = string.Empty;
+
+        /// <summary>
+        /// German version of the comment.
+        /// </summary>
+        private string commentDE = string.Empty;
+
+        /// <summary>
+        /// English version of the comment.
+        /// </summary>
+        private string commentEN = string.Empty;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="OpeninghoursInstitutionModel" /> class.
+        /// </summary>
+        public OpeninghoursInstitutionModel()
+        {
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the german title of the institution.
+        /// </summary>
+        [XmlAttribute("title_de")]
+        public string Title_DE
+        {
+            get
+            {
+                return this.titleDE;
+            }
+
+            set
+            {
+                this.titleDE = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the english title of the institution.
+        /// </summary>
+        [XmlAttribute("title_en")]
+        public string Title_EN
+        {
+            get
+            {
+                return this.titleEN;
+            }
+
+            set
+            {
+                this.titleEN = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the open hours on monday.
+        /// </summary>
+        [XmlAttribute("monday")]
+        public string Monday
+        {
+            get
+            {
+                return this.dayMonday;
+            }
+
+            set
+            {
+                this.dayMonday = this.FixOpeninghoursString(value);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the open hours on tuesday.
+        /// </summary>
+        [XmlAttribute("tuesday")]
+        public string Tuesday
+        {
+            get
+            {
+                return this.dayTuesday;
+            }
+
+            set
+            {
+                this.dayTuesday = this.FixOpeninghoursString(value);
+            }
+        }
+        
+        /// <summary>
+        /// Gets or sets the open hours on wednesday.
+        /// </summary>
+        [XmlAttribute("wednesday")]
+        public string Wednesday
+        {
+            get
+            {
+                return this.dayWednesday;
+            }
+
+            set
+            {
+                this.dayWednesday = this.FixOpeninghoursString(value);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the open hours on thursday.
+        /// </summary>
+        [XmlAttribute("thursday")]
+        public string Thursday
+        {
+            get
+            {
+                return this.dayThursday;
+            }
+
+            set
+            {
+                this.dayThursday = this.FixOpeninghoursString(value);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the open hours on friday.
+        /// </summary>
+        [XmlAttribute("friday")]
+        public string Friday
+        {
+            get
+            {
+                return this.dayFriday;
+            }
+
+            set
+            {
+                this.dayFriday = this.FixOpeninghoursString(value);
+            }
+        }
+        
+        /// <summary>
+        /// Gets or sets the open hours on saturday.
+        /// </summary>
+        [XmlAttribute("saturday")]
+        public string Saturday
+        {
+            get
+            {
+                return this.daySaturday;
+            }
+
+            set
+            {
+                this.daySaturday = this.FixOpeninghoursString(value);
+            }
+        }
+        
+        /// <summary>
+        /// Gets or sets the open hours on sunday.
+        /// </summary>
+        [XmlAttribute("sunday")]
+        public string Sunday
+        {
+            get
+            {
+                return this.daySunday;
+            }
+
+            set
+            {
+                this.daySunday = this.FixOpeninghoursString(value);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the email address of the institution.
+        /// </summary>
+        [XmlAttribute("email")]
+        public string EMail
+        {
+            get
+            {
+                return this.infoEmail;
+            }
+
+            set
+            {
+                this.infoEmail = value;
+            }
+        }
+        
+        /// <summary>
+        /// Gets or sets the phone number of the institution.
+        /// </summary>
+        [XmlAttribute("phone")]
+        public string Phone
+        {
+            get
+            {
+                return this.infoPhone;
+            }
+
+            set
+            {
+                this.infoPhone = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the building where the institution is located.
+        /// </summary>
+        [XmlAttribute("location_building")]
+        public string Building
+        {
+            get
+            {
+                return this.infoBuilding;
+            }
+
+            set
+            {
+                this.infoBuilding = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the room where the institution is located.
+        /// </summary>
+        [XmlAttribute("location_room")]
+        public string Room
+        {
+            get
+            {
+                return this.infoRoom;
+            }
+
+            set
+            {
+                this.infoRoom = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the german comment.
+        /// </summary>
+        [XmlAttribute("comment_de")]
+        public string Comment_DE
+        {
+            get
+            {
+                return this.commentDE;
+            }
+
+            set
+            {
+                this.commentDE = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the english comment.
+        /// </summary>
+        [XmlAttribute("comment_en")]
+        public string Comment_EN
+        {
+            get
+            {
+                return this.commentEN;
+            }
+
+            set
+            {
+                this.commentEN = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized title. If the phone is set to german language,
+        /// the german title will be returned otherwise the english title.
+        /// </summary>
+        public string Title
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.titleDE;
+                }
+                else
+                {
+                    return this.titleEN;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized comment. if the phone is set to german language,
+        /// the german comment will be returned otherwise the english comment.
+        /// </summary>
+        public string Comment
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.commentDE;
+                }
+                else
+                {
+                    return this.commentEN;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets a string containing the email address and the institution
+        /// title separated by ':'.
+        /// </summary>
+        public string EMailTitle
+        {
+            get
+            {
+                return this.EMail + ":" + this.Title;
+            }
+        }
+
+        /// <summary>
+        /// Gets a string containing the phone number and the institution
+        /// title separated by ':'.
+        /// </summary>
+        public string PhoneTitle
+        {
+            get
+            {
+                return this.Phone + ":" + this.Title;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the monday TextBlock.
+        /// </summary>
+        public Visibility VisibleMonday
+        {
+            get
+            {
+                return ((this.dayMonday == string.Empty) || (this.dayMonday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the tuesday TextBlock.
+        /// </summary>
+        public Visibility VisibleTuesday
+        {
+            get
+            {
+                return ((this.dayTuesday == string.Empty) || (this.dayTuesday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the wednesday TextBlock.
+        /// </summary>
+        public Visibility VisibleWednesday
+        {
+            get
+            {
+                return ((this.dayWednesday == string.Empty) || (this.dayWednesday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the thursday TextBlock.
+        /// </summary>
+        public Visibility VisibleThursday
+        {
+            get
+            {
+                return ((this.dayThursday == string.Empty) || (this.dayThursday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the friday TextBlock.
+        /// </summary>
+        public Visibility VisibleFriday
+        {
+            get
+            {
+                return ((this.dayFriday == string.Empty) || (this.dayFriday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the saturday TextBlock.
+        /// </summary>
+        public Visibility VisibleSaturday
+        {
+            get
+            {
+                return ((this.daySaturday == string.Empty) || (this.daySaturday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the sunday TextBlock.
+        /// </summary>
+        public Visibility VisibleSunday
+        {
+            get
+            {
+                return ((this.daySunday == string.Empty) || (this.daySunday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the comment.
+        /// </summary>
+        public Visibility VisibleComment
+        {
+            get
+            {
+                return ((this.Comment == string.Empty) || (this.Comment.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the email address.
+        /// </summary>
+        public Visibility VisibleEMail
+        {
+            get
+            {
+                return ((this.infoEmail == string.Empty) || (this.infoEmail.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the phone number.
+        /// </summary>
+        public Visibility VisiblePhone
+        {
+            get
+            {
+                return ((this.infoPhone == string.Empty) || (this.infoPhone.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the room.
+        /// </summary>
+        public Visibility VisibleRoom
+        {
+            get
+            {
+                return ((this.infoRoom == string.Empty) || (this.infoRoom.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the building.
+        /// </summary>
+        public Visibility VisibleBuilding
+        {
+            get
+            {
+                return ((this.infoBuilding == string.Empty) || (this.infoBuilding.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        #endregion
+
+        #region Method
+
+        /// <summary>
+        /// Removes unwanted chars in a string.
+        /// </summary>
+        /// <param name="str">input string</param>
+        /// <returns>fixed string</returns>
+        private string FixOpeninghoursString(string str)
+        {
+            string retValue = string.Empty;
+
+            retValue = str.Replace(" | ", "\n");
+
+            return retValue;
+        }
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursModel.cs
@@ -0,0 +1,79 @@
+//-----------------------------------------------------------------------------
+// <copyright file="OpeninghoursModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Openinghours
+{
+    using System;
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for opening hours.
+    /// </summary>
+    [XmlRoot("root")]
+    public class OpeninghoursModel
+    {
+        #region Member
+        
+        /// <summary>
+        /// Time when the model was created.
+        /// </summary>
+        private readonly DateTime createTime;
+        
+        /// <summary>
+        /// Gets or sets feed information item list.
+        /// </summary>
+        [XmlArray("data")]
+        [XmlArrayItem("institution")]
+        public ObservableCollection<OpeninghoursInstitutionModel> institutions { get; set; }
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="OpeninghoursModel" /> class.
+        /// </summary>
+        public OpeninghoursModel()
+        {
+            this.createTime = DateTime.Now;
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets the creation time of the model.
+        /// </summary>
+        public DateTime CreateTime
+        {
+            get
+            {
+                return this.createTime;
+            }
+        }
+        
+        /// <summary>
+        /// Gets the Institutions.
+        /// </summary>
+        public ObservableCollection<OpeninghoursInstitutionModel> Institutions
+        {
+            get
+            {
+                return this.institutions;
+            }
+        }
+
+        #endregion
+
+        #region Method
+
+        #endregion
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/RSS/RSSChannelModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/RSS/RSSChannelModel.cs
@@ -0,0 +1,70 @@
+//-----------------------------------------------------------------------------
+// <copyright file="RSSChannelModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
+namespace CampusAppWP8.Model.RSS
+{
+    using System.Collections.ObjectModel;
+    using System.Collections.Specialized;
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Channel Model, which contains the RSS feed item list.
+    /// </summary>
+    public class RSSChannelModel
+    {
+        /// <summary>
+        /// RSS feed information item list.
+        /// </summary>
+        private ObservableCollection<RSSModel> item;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="RSSChannelModel" /> class.
+        /// </summary>
+        public RSSChannelModel()
+        {
+            this.item = new ObservableCollection<RSSModel>();
+            this.item.CollectionChanged += new NotifyCollectionChangedEventHandler(this.OnListChanged);
+        }
+
+        /// <summary>
+        /// Gets or sets the RSS feed item list.
+        /// </summary>
+        [XmlElement("item")]
+        public ObservableCollection<RSSModel> Item
+        {
+            get
+            {
+                return this.item;
+            }
+
+            set
+            {
+                if (value != this.item)
+                {
+                    this.item = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Is called when the item list has changed.
+        /// Here used for the add event.
+        /// Set the index of the last list element.
+        /// </summary>
+        /// <param name="sender">item list</param>
+        /// <param name="e">event args</param>
+        private void OnListChanged(object sender, NotifyCollectionChangedEventArgs e)
+        {
+            if (e.Action == NotifyCollectionChangedAction.Add)
+            {
+                ObservableCollection<RSSModel> list = sender as ObservableCollection<RSSModel>;
+
+                list[list.Count - 1].Index = list.Count - 1;
+            }
+        }
+    }
+}
--- a/CampusAppWP8/CampusAppWP8/Model/RSS/RSSModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/RSS/RSSModel.cs
@@ -0,0 +1,256 @@
+//-----------------------------------------------------------------------------
+// <copyright file="RSSModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
+namespace CampusAppWP8.Model.RSS
+{
+    using System;
+    using System.Text;
+    using System.Xml.Serialization;
+    
+    /// <summary>
+    /// Contains the RSS feed information.
+    /// </summary>
+    public class RSSModel
+    {
+        /// <summary>
+        /// Index of this object.
+        /// </summary>
+        private int index = -1;
+        
+        /// <summary>
+        /// Title of the fees
+        /// </summary>
+        private string title;
+
+        /// <summary>
+        /// Description text of the feed.
+        /// </summary>
+        private string text;
+        
+        /// <summary>
+        /// Timestamp (publication date) of the event or news.
+        /// </summary>
+        private DateTime timestamp;
+        
+        /// <summary>
+        /// Url of the feed.
+        /// </summary>
+        private string link;
+
+        /// <summary>
+        /// Gets or sets the title of the feed.
+        /// </summary>
+        [XmlElement("title")]
+        public string Title
+        {
+            get 
+            { 
+                return this.title; 
+            }
+
+            set 
+            {
+                if (this.title != value)
+                {
+                    this.title = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the text of the feed.
+        /// </summary>
+        [XmlElement("description")]
+        public string Text
+        {
+            get 
+            { 
+                return this.text; 
+            }
+
+            set
+            {
+                if (this.text != this.HTMLUnicodeToString(value))
+                {
+                    this.text = this.HTMLUnicodeToString(value);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the timestamp of the feed as string.
+        /// </summary>
+        [XmlElement("pubDate")]
+        public string Timestamp
+        {
+            get 
+            { 
+                return this.timestamp.ToString("R"); 
+            }
+
+            set
+            {
+                if (this.timestamp != DateTime.Parse(value))
+                {
+                    this.timestamp = DateTime.Parse(value);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the timestamp of the feed as DateTime object.
+        /// </summary>
+        public DateTime DTTimestamp
+        {
+            get 
+            { 
+                return this.timestamp; 
+            }
+            
+            set 
+            { 
+                this.timestamp = value; 
+            }
+        }
+
+        /// <summary>
+        /// Gets the date of the timestamp as string.
+        /// example: Mon, 25.06.2013.
+        /// </summary>
+        public string Date
+        {
+            get 
+            { 
+                return string.Format("{0:ddd, dd.MM.yyyy}", this.timestamp); 
+            }
+        }
+
+        /// <summary>
+        /// Gets the time of the timestamp as string.
+        /// example: 12:56 Uhr.
+        /// </summary>
+        public string Time
+        {
+            get 
+            { 
+                return string.Format("{0:h:mm} Uhr", this.timestamp); 
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the link/url of the feed.
+        /// </summary>
+        [XmlElement("link")]
+        public string Link
+        {
+            get 
+            { 
+                return this.link; 
+            }
+
+            set 
+            {
+                if (this.link != value)
+                {
+                    this.link = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the ListIndex.
+        /// </summary>
+        public int Index 
+        {
+            get
+            {
+                return this.index;
+            }
+
+            set
+            {
+                this.index = value;
+            }
+        }
+
+        /// <summary>
+        /// Comparing function for DateTime timestamps.
+        /// (currently unused)
+        /// </summary>
+        /// <param name="item1">first item</param>
+        /// <param name="item2">second item</param>
+        /// <returns>-1 if item2 is older then item1, otherwise 0</returns>
+        public static int CompareTimeStamp(RSSModel item1, RSSModel item2)
+        {
+            if (item1.DTTimestamp > item2.DTTimestamp)
+            {
+                return -1;
+            }
+            else
+            {
+                return 0;
+            }
+        }
+
+        /// <summary>
+        /// Remove or transform html-unicode specific tags into ASCII.
+        /// </summary>
+        /// <param name="htmluni">html string</param>
+        /// <returns>ASCII string</returns>
+        private string HTMLUnicodeToString(string htmluni)
+        {
+            StringBuilder retValue = new StringBuilder();
+
+            for (int i = 0; i < htmluni.Length; i++)
+            {
+                switch (htmluni[i])
+                {
+                    // beginning tag of the unicode
+                    case '&':
+                        int startOff = i + 2;
+                        //// sear closing tag of the unicode
+                        int endOff = htmluni.IndexOf(';', startOff);
+                        //// get and parse value inbetween
+                        string sub = htmluni.Substring(startOff, endOff - startOff);
+                        int charVal = int.Parse(sub);
+
+                        switch (charVal)
+                        {
+                            // if the unicode value is 128 (€)
+                            case 128:
+                                retValue.Append('€');
+                                break;
+
+                            default:
+                                retValue.Append((char)charVal);
+                                break;
+                        }
+
+                        // set the current index to the end of the unicode tag
+                        i = endOff;
+                        break;
+
+                    case '<':
+                        // ignoring <..> html tags
+                        i = htmluni.IndexOf('>', i);
+                        break;
+
+                    case '\t':
+                        // removing tabs
+                        break;
+
+                    default:
+                        // adding other characters to the return string
+                        retValue.Append(htmluni[i]);
+                        break;
+                }
+            }
+
+            return retValue.ToString();
+        }
+    }
+}
--- a/Show More
+++ b/Show More