diff --git a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
index c28f0ff9..4c536a5f 100644
--- a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
+++ b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
@@ -200,8 +200,8 @@
     <Compile Include="Model\Lecture\LectureModule.cs" />
     <Compile Include="Model\Lecture\LecturePageModel.cs" />
     <Compile Include="Model\MainModel.cs" />
-    <Compile Include="Model\Openinghours\OpeninghoursInstitutionModel.cs" />
-    <Compile Include="Model\Openinghours\OpeninghoursModel.cs" />
+    <Compile Include="Model\Openinghours\OpeninghoursInstitutionWp8Model.cs" />
+    <Compile Include="Model\Openinghours\OpeninghoursWp8Model.cs" />
     <Compile Include="Model\StudentCouncil\StudentCouncilListModel.cs" />
     <Compile Include="Model\StudentCouncil\StudentCouncilModel.cs" />
     <Compile Include="Model\XmlModel.cs" />
diff --git a/CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs b/CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs
index 9ee3a87c..d77a8369 100644
--- a/CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs
@@ -18,7 +18,7 @@ namespace CampusAppWP8.Feed.Openinghours
     /// <summary>
     /// This Class is for MesaFeeds
     /// </summary>
-    public class OpeninghoursFeed : XmlModel<OpeninghoursModel>
+    public class OpeninghoursFeed : XmlModel<OpeninghoursWp8Model>
     {
         #region Constructor
 
@@ -42,7 +42,7 @@ namespace CampusAppWP8.Feed.Openinghours
         /// </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)
+        private bool CheckIsModelUpToDate(OpeninghoursWp8Model model)
         {
             bool retValue = true;
 
@@ -64,7 +64,7 @@ namespace CampusAppWP8.Feed.Openinghours
         /// <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)
+        private bool CheckIsFileUpToDateOnLoad(OpeninghoursWp8Model model, FileInfo info)
         {
             bool retValue = true;
 
@@ -85,7 +85,7 @@ namespace CampusAppWP8.Feed.Openinghours
         /// <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)
+        private bool CheckIsFileUpToDateOnSave(OpeninghoursWp8Model model, FileInfo info)
         {
             bool retValue = true;
 
diff --git a/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursInstitutionWp8Model.cs b/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursInstitutionWp8Model.cs
new file mode 100644
index 00000000..077ee869
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursInstitutionWp8Model.cs
@@ -0,0 +1,156 @@
+//-----------------------------------------------------------------------------
+// <copyright file="OpeninghoursInstitutionWp8Model.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 OpeninghoursInstitutionWp8Model : CampusAppWPortalLib8.Model.Openinghours.OpeninghoursInstitutionModel
+    {
+        #region Property       
+
+        /// <summary>
+        /// Gets the visibility state of the monday TextBlock.
+        /// </summary>
+        public Visibility VisibleMonday
+        {
+            get
+            {
+                return ((this.Monday == string.Empty) || (this.Monday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the tuesday TextBlock.
+        /// </summary>
+        public Visibility VisibleTuesday
+        {
+            get
+            {
+                return ((this.Tuesday == string.Empty) || (this.Tuesday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the wednesday TextBlock.
+        /// </summary>
+        public Visibility VisibleWednesday
+        {
+            get
+            {
+                return ((this.Wednesday == string.Empty) || (this.Wednesday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the thursday TextBlock.
+        /// </summary>
+        public Visibility VisibleThursday
+        {
+            get
+            {
+                return ((this.Thursday == string.Empty) || (this.Thursday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the friday TextBlock.
+        /// </summary>
+        public Visibility VisibleFriday
+        {
+            get
+            {
+                return ((this.Friday == string.Empty) || (this.Friday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the saturday TextBlock.
+        /// </summary>
+        public Visibility VisibleSaturday
+        {
+            get
+            {
+                return ((this.Saturday == string.Empty) || (this.Saturday.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the sunday TextBlock.
+        /// </summary>
+        public Visibility VisibleSunday
+        {
+            get
+            {
+                return ((this.Sunday == string.Empty) || (this.Sunday.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.EMail == string.Empty) || (this.EMail.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the phone number.
+        /// </summary>
+        public Visibility VisiblePhone
+        {
+            get
+            {
+                return ((this.Phone == string.Empty) || (this.Phone.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the room.
+        /// </summary>
+        public Visibility VisibleRoom
+        {
+            get
+            {
+                return ((this.Room == string.Empty) || (this.Room.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        /// <summary>
+        /// Gets the visibility state of the building.
+        /// </summary>
+        public Visibility VisibleBuilding
+        {
+            get
+            {
+                return ((this.Building == string.Empty) || (this.Building.Length == 0)) ? Visibility.Collapsed : Visibility.Visible;
+            }
+        }
+
+        #endregion
+            }
+}
diff --git a/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursWp8Model.cs b/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursWp8Model.cs
new file mode 100644
index 00000000..88b480bd
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Model/Openinghours/OpeninghoursWp8Model.cs
@@ -0,0 +1,20 @@
+//-----------------------------------------------------------------------------
+// <copyright file="OpeninghoursWp8Model.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Openinghours
+{
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for opening hours.
+    /// </summary>
+    [XmlRoot("root")]
+    public class OpeninghoursWp8Model : CampusAppWPortalLib8.Model.Openinghours.OpeninghoursModel<OpeninghoursInstitutionWp8Model>
+    {
+    }
+}
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
index d8147b93..44694ae9 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
@@ -52,7 +52,7 @@ namespace CampusAppWP8.Pages.Openinghours
                 this.feed.OnLoaded += new OpeninghoursFeed.OnIO(this.FeedIsReady);
                 this.feed.OnFailedWeb += new OpeninghoursFeed.OnFailed(this.FeedIsFailedWeb);
                 this.feed.OnFailedFile += new OpeninghoursFeed.OnFailed(this.FeedIsFailedFile);
-                this.feed.LoadData(Utilities.GetLoadModus<Model.Openinghours.OpeninghoursModel>());
+                this.feed.LoadData(Utilities.GetLoadModus<Model.Openinghours.OpeninghoursWp8Model>());
             }
 
             this.isNewInstance = true;
@@ -81,9 +81,9 @@ namespace CampusAppWP8.Pages.Openinghours
             {
                 if ((this.feed == null) || (this.feed.Model == null))
                 {
-                    OpeninghoursModel tempModel = null;
+                    OpeninghoursWp8Model tempModel = null;
 
-                    if ((tempModel = App.LoadFromIsolatedStorage<OpeninghoursModel>(Constants.IsolatedStorage_OpeninghoursModel)) != null)
+                    if ((tempModel = App.LoadFromIsolatedStorage<OpeninghoursWp8Model>(Constants.IsolatedStorage_OpeninghoursModel)) != null)
                     {
                         this.feed.Model = tempModel;
                         this.FeedIsReady();
@@ -104,7 +104,7 @@ namespace CampusAppWP8.Pages.Openinghours
 
             if (e.NavigationMode != System.Windows.Navigation.NavigationMode.Back)
             {
-                App.SaveToIsolatedStorage<OpeninghoursModel>(Constants.IsolatedStorage_OpeninghoursModel, this.feed.Model);
+                App.SaveToIsolatedStorage<OpeninghoursWp8Model>(Constants.IsolatedStorage_OpeninghoursModel, this.feed.Model);
             }
         }