diff --git a/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractBackgroundTasks.cs b/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractBackgroundTasks.cs
index 434104b4..a3bdca7f 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractBackgroundTasks.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractBackgroundTasks.cs
@@ -1,21 +1,19 @@
 //-----------------------------------------------------------------------
 // <copyright file="AbstractBackgroundTasks.cs" company="BTU/IIT">
-//     Company copyright tag.
+// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
 // </copyright>
-// <author>stubbfel</author>
-// <sience>18.09.2013</sience>
-//----------------------------------------------------------------------
-
+// <author>Stubbfel</author>
+// <date>15.10.2013</date>
+// <summary>Implements the abstract background tasks class</summary>
+//-----------------------------------------------------------------------
 namespace CampusAppWPortalLib8.Utility
 {
-    /// <summary>
-    /// abstract class for BackGroundTask
-    /// </summary>
+    /// <summary> abstract class for BackGroundTask. </summary>
+    /// <remarks> Stubbfel, 15.10.2013. </remarks>
     public abstract class AbstractBackgroundTasks
     {
-        /// <summary>
-        /// Gets or sets the name of the last running task
-        /// </summary>
+        /// <summary> Gets or sets the name of the last running task. </summary>
+        /// <value> The name of the last added task. </value>
         protected static string LastAddedTaskName { get; set; }
     }
 }
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractFile.cs b/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractFile.cs
index 0724f50e..311da049 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractFile.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractFile.cs
@@ -1,22 +1,21 @@
-//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------
 // <copyright file="AbstractFile.cs" company="BTU/IIT">
-//     Company copyright tag.
+// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
 // </copyright>
 // <author>fiedlchr</author>
-// <sience>03.05.2013</sience>
-//-----------------------------------------------------------------------------
+// <date>15.10.2013</date>
+// <summary>Implements the abstract file class</summary>
+//-----------------------------------------------------------------------
 namespace CampusAppWPortalLib8.Utility
 {
-    /// <summary>
-    /// File class.
-    /// </summary>
+    /// <summary> File class. </summary>
+    /// <remarks> fiedlchr, 15.10.2013. </remarks>
     public abstract class AbstractFile
     {
         #region Events
 
-        /// <summary>
-        /// Delegation of the write callback function prototype.
-        /// </summary>
+        /// <summary> Delegation of the write callback function prototype. </summary>
+        /// <remarks> fiedlchr, 15.10.2013. </remarks>
         public delegate void WriteCallbackFunc();
 
         #endregion
@@ -25,28 +24,25 @@ namespace CampusAppWPortalLib8.Utility
 
         #region public
 
-        /// <summary>Read data from file to a string.</summary>
-        /// <remarks>Stubbfel, 03.09.2013.</remarks>
-        /// <returns>data string.</returns>
+         /// <summary> Read data from file to a string. </summary>
+         /// <remarks> fiedlchr, 03.09.2013. </remarks>
+         /// <returns> data string. </returns>
          public abstract byte[] ReadFile();
 
-        /// <summary>Write bytes to the file.</summary>
-        /// <remarks>Stubbfel, 03.09.2013.</remarks>
-        /// <param name="data">            data byte array.</param>
-        /// <param name="onSavedCallback"> callback function, called after writing is done.</param>
-        /// <param name="onFailedCallback">callback function, called when writing failed.</param>
+        /// <summary> Write bytes to the file. </summary>
+        /// <remarks> fiedlchr, 03.09.2013. </remarks>
+        /// <param name="data">             data byte array. </param>
+        /// <param name="onSavedCallback">  callback function, called after writing is done. </param>
+        /// <param name="onFailedCallback"> callback function, called when writing failed. </param>
         public abstract void WriteFile(byte[] data, WriteCallbackFunc onSavedCallback, WriteCallbackFunc onFailedCallback);
 
-        /// <summary>
-        /// Check if a file is existing.
-        /// </summary>
-        /// <returns>true, if file exists, otherwise false</returns>
+        /// <summary> Check if a file is existing. </summary>
+        /// <remarks> fiedlchr, 15.10.2013. </remarks>
+        /// <returns> true, if file exists, otherwise false. </returns>
         public abstract bool Exist();
 
-
         #endregion
 
-
         #endregion
     }
 }
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractHttpRequest.cs b/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractHttpRequest.cs
index e52f9b50..8645f09d 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractHttpRequest.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Utility/AbstractHttpRequest.cs
@@ -1,36 +1,32 @@
 //-----------------------------------------------------------------------
 // <copyright file="AbstractHttpRequest.cs" company="BTU/IIT">
-//     Company copyright tag.
+// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
 // </copyright>
-// <author>stubbfel</author>
-// <sience>10.06.2013</sience>
-//----------------------------------------------------------------------
+// <author>Stubbfel</author>
+// <date>15.10.2013</date>
+// <summary>Implements the abstract HTTP request class</summary>
+//-----------------------------------------------------------------------
 namespace CampusAppWPortalLib8.Utility
-{
+{    
     using System;
     using System.Collections.Generic;
-    using System.Net;
     using CampusAppWPortalLib8.Model.Utility;
 
-    /// <summary>
-    /// abstract Class provides some methods and member for HttpRequest
-    /// </summary>
+    /// <summary> abstract Class provides some methods and member for HttpRequest. </summary>
+    /// <remarks> Stubbfel, 15.10.2013. </remarks>
     public abstract class AbstractHttpRequest
     {
         #region Member
 
-        /// <summary>
-        /// BaseAddress of the webClient
-        /// </summary>
+        /// <summary> BaseAddress of the webClient. </summary>
         private string baseAddress;
 
         #endregion
 
         #region property
 
-        /// <summary>
-        ///  Gets or sets BaseAddress of the webClient
-        /// </summary>
+        /// <summary> Gets or sets BaseAddress of the webClient. </summary>
+        /// <value> The base address. </value>
         protected string BaseAddress
         {
             get
@@ -50,11 +46,10 @@ namespace CampusAppWPortalLib8.Utility
 
         #region Methods
 
-        /// <summary>
-        /// Method create the Url for the http-get-method
-        /// </summary>
-        /// <param name="parameters"> list of parameters</param>
-        /// <returns>absolute API-Url include GetParameter</returns>
+        /// <summary> Method create the Url for the http-get-method. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="parameters"> list of parameters. </param>
+        /// <returns> absolute API-Url include GetParameter. </returns>
         public Uri CreateGetUrl(List<UrlParamModel> parameters)
         {
             string paramterStr = string.Empty;
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Utility/DefaultStringManager.cs b/CampusAppWP8/CampusAppWPortalLib8/Utility/DefaultStringManager.cs
index 8f931d3a..37a2d796 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Utility/DefaultStringManager.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Utility/DefaultStringManager.cs
@@ -1,68 +1,64 @@
 //-----------------------------------------------------------------------
 // <copyright file="DefaultStringManager.cs" company="BTU/IIT">
-//     Company copyright tag.
+// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
 // </copyright>
-// <author>stubbfel</author>
-// <sience>06.06.2013</sience>
-//----------------------------------------------------------------------
+// <author>Stubbfel</author>
+// <date>15.10.2013</date>
+// <summary>Implements the default string manager class</summary>
+//-----------------------------------------------------------------------
 namespace CampusAppWPortalLib8.Utility
 {
     using System;
     using System.Text.RegularExpressions;
     using CampusAppWPortalLib8.Resources;
 
-    /// <summary>
-    /// Class provides some special StringMethods
-    /// </summary>
+    /// <summary> Class provides some special StringMethods. </summary>
+    /// <remarks> Stubbfel, 15.10.2013. </remarks>
     public class DefaultStringManager
     {
         #region Members
 
-        /// <summary>
-        /// Patter for Html-Tags
-        /// </summary>
+        /// <summary> Patter for Html-Tags. </summary>
         private static readonly string HtmlTagPattern = "<.*?>";
 
-        /// <summary>The mail valid regular expression.</summary>
+        /// <summary> The mail valid regular expression. </summary>
         private static readonly string EMailValidRegex = @"^(?("")(""[^""]+?""@)|(([0-9a-z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-z])@))(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-z][-\w]*[0-9a-z]*\.)+[a-z0-9]{2,17}))$";
 
         #endregion
 
         #region Methods
 
-        /// <summary>
-        /// Method removes Html-Tag of a String
-        /// </summary>
-        /// <param name="inputString">String with Html-Tags</param>
-        /// <returns>String without Html-Tags</returns>
+        /// <summary> Method removes Html-Tag of a String. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="inputString"> String with Html-Tags. </param>
+        /// <returns> String without Html-Tags. </returns>
         public static string StripHTML(string inputString)
         {
             return Regex.Replace(inputString, DefaultStringManager.HtmlTagPattern, string.Empty);
         }
 
-        /// <summary>
-        /// Method add an Newline to a string
-        /// </summary>
-        /// <param name="str">input string</param>
-        /// <returns>input string + newline</returns>
+        /// <summary> Method add an Newline to a string. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="str"> input string. </param>
+        /// <returns> input string + newline. </returns>
         public static string AddNewLine(string str)
         {
             return str.ToString() + "\n";
         }
 
-        /// <summary>Method remove(TrimEND!) an Newline to a string.</summary>
-        /// <remarks>Stubbfel, 12.09.2013.</remarks>
-        /// <param name="str">input string.</param>
-        /// <returns>input string - newline.</returns>
+        /// <summary> Method remove(TrimEND!) an Newline to a string. </summary>
+        /// <remarks> Stubbfel, 12.09.2013. </remarks>
+        /// <param name="str"> input string. </param>
+        /// <returns> input string - newline. </returns>
         public static string RemoveNewLine(string str)
         {
             return str.TrimEnd('\n');
         }
 
-        /// <summary>Query if 'strIn' is valid email.</summary>
-        /// <remarks>Stubbfel, 04.09.2013.</remarks>
-        /// <param name="strIn">The in.</param>
-        /// <returns>true if valid email, false if not.</returns>
+        /// <summary> Query if 'strIn' is valid email. </summary>
+        /// <remarks> Stubbfel, 04.09.2013. </remarks>
+        /// <param name="strIn"> The in. </param>
+        /// <returns> true if valid email, false if not. </returns>
         public static bool IsValidEmail(string strIn)
         {
             // Return true if strIn is in valid e-mail format. 
@@ -79,10 +75,10 @@ namespace CampusAppWPortalLib8.Utility
             }
         }
 
-        /// <summary>Creates uni telefon number.</summary>
-        /// <remarks>Stubbfel, 04.09.2013.</remarks>
-        /// <param name="input">The input.</param>
-        /// <returns>The new uni telefon number.</returns>
+        /// <summary> Creates uni telefon number. </summary>
+        /// <remarks> Stubbfel, 04.09.2013. </remarks>
+        /// <param name="input"> The input. </param>
+        /// <returns> The new uni telefon number. </returns>
         public static string CreateUniTelefonNumber(string input)
         {
             string result = null;
@@ -101,13 +97,14 @@ namespace CampusAppWPortalLib8.Utility
             return result;
         }
 
-        /// <summary>
-        /// Method create from a long string a short string
-        /// </summary>
-        /// <param name="longStr">the long input String</param>
-        /// <param name="maxLenght">max length of the short string</param>
-        /// <param name="suffix">(optional) suffix which added to the short string, when long string has to be cut</param>
-        /// <returns>the shorted string</returns>
+        /// <summary> Method create from a long string a short string. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="longStr">   the long input String. </param>
+        /// <param name="maxLenght"> max length of the short string. </param>
+        /// <param name="suffix">
+        ///     (optional) suffix which added to the short string, when long string has to be cut.
+        /// </param>
+        /// <returns> the shorted string. </returns>
         public static string ToShortString(string longStr, int maxLenght, string suffix = "")
         {
             string shortStr = longStr;
@@ -124,17 +121,15 @@ namespace CampusAppWPortalLib8.Utility
             return shortStr;
         }
 
-        /// <summary>
-        /// Method gets the placeId of the result string for an qrCode string
-        /// </summary>
-        /// <param name="qrcodeResult">input qrCode string</param>
-        /// <returns>the id if it was found it in the string otherwise null</returns>
+        /// <summary> Method gets the placeId of the result string for an qrCode string. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="qrcodeResult"> input qrCode string. </param>
+        /// <returns> the id if it was found it in the string otherwise null. </returns>
         public static string FilterPlaceIdinQRResultString(string qrcodeResult)
         {
             if (qrcodeResult == null) 
             {
                 return null;
-
             }
 
             string[] lines = qrcodeResult.Split('\n');
@@ -152,11 +147,10 @@ namespace CampusAppWPortalLib8.Utility
             return null;
         }
 
-        /// <summary>
-        /// Method check if the string contains only digit
-        /// </summary>
-        /// <param name="str">input string</param>
-        /// <returns>true if the string contains only digit, otherwise false</returns>
+        /// <summary> Method check if the string contains only digit. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="str"> input string. </param>
+        /// <returns> true if the string contains only digit, otherwise false. </returns>
         public static bool IsDigitsOnly(string str)
         {
             if (str == null || str.Length < 1)
@@ -175,11 +169,10 @@ namespace CampusAppWPortalLib8.Utility
             return true;
         }
 
-        /// <summary>
-        /// Method gets the placeId of the result string for an nfc string
-        /// </summary>
-        /// <param name="nfcResult">input nfc string</param>
-        /// <returns>the id if it was found it in the string otherwise null</returns>
+        /// <summary> Method gets the placeId of the result string for an nfc string. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="nfcResult"> input nfc string. </param>
+        /// <returns> the id if it was found it in the string otherwise null. </returns>
         public static string FilterPlaceIdinNFCResultString(string nfcResult)
         {
             string nfcResultTrim = nfcResult.Trim('{');
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Utility/Logger.cs b/CampusAppWP8/CampusAppWPortalLib8/Utility/Logger.cs
index f12400bc..b70453bf 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Utility/Logger.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Utility/Logger.cs
@@ -1,32 +1,30 @@
-//--------------------------------------------------------------------
+//-----------------------------------------------------------------------
 // <copyright file="Logger.cs" company="BTU/IIT">
-//     Company copyright tag.
+// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
 // </copyright>
-// <author>stubbfel</author>
-// <sience>03.05.2013</sience>
-//----------------------------------------------------------------------
+// <author>Stubbfel</author>
+// <date>15.10.2013</date>
+// <summary>Implements the logger class</summary>
+//-----------------------------------------------------------------------
 namespace CampusAppWPortalLib8.Utility
 {
     using System;
 
-    /// <summary>
-    /// This Class creates logs for the app
-    /// </summary>
+    /// <summary> This Class creates logs for the app. </summary>
+    /// <remarks> Stubbfel, 15.10.2013. </remarks>
     public class Logger
     {
-        /// <summary>
-        /// Method log a Exception
-        /// </summary>
-        /// <param name="exception">exception which has to log</param>
+        /// <summary> Method log a Exception. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="exception"> exception which has to log. </param>
         public static void LogException(Exception exception)
         {
             // Console.WriteLine(exception);
         }
 
-        /// <summary>
-        /// Log a message.
-        /// </summary>
-        /// <param name="msg">to be logged message</param>
+        /// <summary> Log a message. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <param name="msg"> to be logged message. </param>
         public static void LogMsg(string msg)
         {
             // Console.WriteLine(msg);
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Utility/XmlManager.cs b/CampusAppWP8/CampusAppWPortalLib8/Utility/XmlManager.cs
index 95a622de..60e67935 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Utility/XmlManager.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Utility/XmlManager.cs
@@ -1,28 +1,27 @@
 //-----------------------------------------------------------------------
 // <copyright file="XmlManager.cs" company="BTU/IIT">
-//     Company copyright tag.
+// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
 // </copyright>
-// <author>stubbfel</author>
-// <sience>18.06.2013</sience>
-//----------------------------------------------------------------------
+// <author>Stubbfel</author>
+// <date>15.10.2013</date>
+// <summary>Implements the XML manager class</summary>
+//-----------------------------------------------------------------------
 namespace CampusAppWPortalLib8.Utility
 {
     using System.IO;
     using System.Xml.Linq;
     using System.Xml.Serialization;
 
-    /// <summary>
-    /// Class provides some Xml-methods
-    /// </summary>
+    /// <summary> Class provides some Xml-methods. </summary>
+    /// <remarks> Stubbfel, 15.10.2013. </remarks>
     public class XmlManager
     {
-        /// <summary>
-        /// Method deserialization a string to a Model
-        /// </summary>
-        /// <typeparam name="T">the model</typeparam>
-        /// <param name="xmlString">the XmlString</param>
-        /// <param name="validRootName">name of the RootTag</param>
-        /// <returns>return the deserialization of the model</returns>
+        /// <summary> Method deserialization a string to a Model. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <typeparam name="T"> the model. </typeparam>
+        /// <param name="xmlString">     the XmlString. </param>
+        /// <param name="validRootName"> name of the RootTag. </param>
+        /// <returns> return the deserialization of the model. </returns>
         public static T DeserializationToModel<T>(string xmlString, string validRootName)
         {
             XmlSerializer serializer = new XmlSerializer(typeof(T));
@@ -38,11 +37,11 @@ namespace CampusAppWPortalLib8.Utility
             return model;
         }
 
-        /// <summary>Deserialization a xml file to  a model.</summary>
-        /// <remarks>Stubbfel, 20.08.2013.</remarks>
-        /// <typeparam name="T">Generic type parameter.</typeparam>
-        /// <param name="xmlFilePath">Path to the a XmlFile.</param>
-        /// <returns>model of the XmlFile.</returns>
+        /// <summary> Deserialization a xml file to  a model. </summary>
+        /// <remarks> Stubbfel, 20.08.2013. </remarks>
+        /// <typeparam name="T"> Generic type parameter. </typeparam>
+        /// <param name="xmlFilePath"> Path to the a XmlFile. </param>
+        /// <returns> model of the XmlFile. </returns>
         public static T DeserializationFileToModel<T>(string xmlFilePath)
         {
             XmlSerializer serializer = new XmlSerializer(typeof(T));
@@ -51,12 +50,11 @@ namespace CampusAppWPortalLib8.Utility
             return model;
         }
 
-        /// <summary>
-        /// Method serializes a model to a string.
-        /// </summary>
-        /// <typeparam name="T">type of the model</typeparam>
-        /// <param name="model">model object</param>
-        /// <returns>serialized string</returns>
+        /// <summary> Method serializes a model to a string. </summary>
+        /// <remarks> Stubbfel, 15.10.2013. </remarks>
+        /// <typeparam name="T"> type of the model. </typeparam>
+        /// <param name="model"> model object. </param>
+        /// <returns> serialized string. </returns>
         public static string SerializationToString<T>(T model)
         {
             string retValue = string.Empty;