diff --git a/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureWp8Activity.cs b/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureWp8Activity.cs
new file mode 100644
index 00000000..d68c2c0e
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureWp8Activity.cs
@@ -0,0 +1,79 @@
+//-----------------------------------------------------------------------
+// <copyright file="LectureWp8Activity.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>13.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Lecture
+{
+    using CampusAppWP8.Resources;
+    using CampusAppWPortalLib8.Model.Lecture;
+
+    /// <summary>
+    /// Model for a Activity
+    /// </summary>
+    public class LectureWp8Activity : LectureActivity
+    {
+        #region Members
+
+        /// <summary>URL of the icon.</summary>
+        private string iconUrl;
+
+        #endregion
+
+        #region Proberty
+
+        /// <summary>Gets URL of the icon.</summary>
+        /// <value>The icon URL.</value>
+        public string IconUrl
+        {
+            get
+            {
+                this.CreateIconUrl();
+                return this.iconUrl;
+            }
+        }
+        #endregion
+
+        #region Methods
+
+        #region private
+
+        /// <summary>Creates icon URL.</summary>
+        /// <remarks>Stubbfel, 12.09.2013.</remarks>
+        private void CreateIconUrl()
+        {
+            string typeStr = this.Type;
+
+            if (typeStr.Contains(CampusAppWPortalLib8.Model.Lecture.LectureActivity.ActivityTypeLecture))
+            {
+                 this.iconUrl = Icons.Lecture;
+            }
+            else if (typeStr.Contains(CampusAppWPortalLib8.Model.Lecture.LectureActivity.ActivityTypeExam))
+            {
+                 this.iconUrl = Icons.Exams;
+            }
+            else if (typeStr.Contains(CampusAppWPortalLib8.Model.Lecture.LectureActivity.ActivityTypePract))
+            {
+                this.iconUrl = Icons.Practise;
+            }
+            else if (typeStr.Contains(CampusAppWPortalLib8.Model.Lecture.LectureActivity.ActivityTypeSeminar))
+            {
+                this.iconUrl = Icons.Seminar;
+            }
+            else if (typeStr.Contains(CampusAppWPortalLib8.Model.Lecture.LectureActivity.ActivityTypeLab))
+            {
+                this.iconUrl = Icons.Lab;
+            }
+            else
+            {
+                this.iconUrl = Icons.Info;
+            }
+        }
+
+        #endregion
+
+        #endregion
+    }
+}
diff --git a/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureWp8List.cs b/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureWp8List.cs
new file mode 100644
index 00000000..a2ca637d
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Model/Lecture/LectureWp8List.cs
@@ -0,0 +1,34 @@
+//-----------------------------------------------------------------------
+// <copyright file="LectureWp8List.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>10.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Lecture
+{
+    using System.Linq;
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for a List of LectureActivity
+    /// </summary>
+    [XmlRoot("lsf_auszug")]
+    public class LectureWp8List : CampusAppWPortalLib8.Model.Lecture.LectureList<LectureWp8Activity>
+    {
+        #region Methods
+
+        /// <summary>
+        /// Method return a certain activity
+        /// </summary>
+        /// <param name="id"> id of the  activity</param>
+        /// <returns> the activity (FirstOrDefault)</returns>
+        public new LectureWp8Activity GetActivity(int id)
+        {
+            LectureWp8Activity activity = this.Activities.Where(p => p.Id == id).FirstOrDefault();
+            return base.GetActivity(id) as LectureWp8Activity;
+        }
+
+        #endregion
+    }
+}
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Model/Exams/ExamListModel.cs b/CampusAppWP8/CampusAppWPortalLib8/Model/Exams/ExamListModel.cs
index abecce29..551d5b7c 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Model/Exams/ExamListModel.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Model/Exams/ExamListModel.cs
@@ -16,7 +16,7 @@ namespace CampusAppWPortalLib8.Model.Exams
     /// <summary>Exam list model.</summary>
     /// <remarks>Stubbfel, 02.09.2013.</remarks>
     [XmlRoot("links")]
-    public class ExamListModel<T>
+    public class ExamListModel<T> where T : ExamModel
     {
         #region Property
 
@@ -35,14 +35,8 @@ namespace CampusAppWPortalLib8.Model.Exams
         public List<CourseModel> CreateCourseList()
         {
             List<CourseModel> result = new List<CourseModel>();
-            foreach (T item in this.Exams)
+            foreach (T exam in this.Exams)
             {
-                ExamModel exam = item as ExamModel;
-                if (exam == null)
-                {
-                    continue;
-                }
-
                 CourseModel tmpModel = new CourseModel(exam.CourseNumber, exam.CourseText);
 
                 if (!result.Contains(tmpModel))
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Model/Person/IPersonModel.cs b/CampusAppWP8/CampusAppWPortalLib8/Model/Person/IPersonModel.cs
index c56cfa3b..fcb2db88 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Model/Person/IPersonModel.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Model/Person/IPersonModel.cs
@@ -13,7 +13,7 @@ namespace CampusAppWPortalLib8.Model.Person
     /// Interface for PersonModel classes
     /// </summary>
     /// <typeparam name="T">PersonFunctionModel template</typeparam>
-    public interface IPersonModel<T>
+    public interface IPersonModel<T> where T : IPersonFunctionModel
     {
         /// <summary>Gets or sets the functions of a person.</summary>
         /// <value>The functions.</value>
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonListModel.cs b/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonListModel.cs
index 381e3a0f..d79729a8 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonListModel.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonListModel.cs
@@ -35,7 +35,7 @@ namespace CampusAppWPortalLib8.Model.Person
         {
             foreach (T item in this.Persons)
             {
-                IPersonModel<T> person = item as IPersonModel<T>;
+                IPersonModel<IPersonFunctionModel> person = item as IPersonModel<IPersonFunctionModel>;
                 if (person != null)
                 {
                     person.SetPersonIdToFunction();
@@ -47,11 +47,11 @@ namespace CampusAppWPortalLib8.Model.Person
         /// <remarks>Stubbfel, 05.09.2013.</remarks>
         /// <param name="id">The identifier.</param>
         /// <returns>The person.</returns>
-        public IPersonModel<T> GetPerson(string id)
+        public IPersonModel<IPersonFunctionModel> GetPerson(string id)
         {
             foreach (T item in this.Persons)
             {
-                IPersonModel<T> tmpPerson = item as IPersonModel<T>;
+                IPersonModel<IPersonFunctionModel> tmpPerson = item as IPersonModel<IPersonFunctionModel>;
                 if (tmpPerson == null)
                 {
                     continue;
@@ -63,7 +63,7 @@ namespace CampusAppWPortalLib8.Model.Person
                 }
             }
 
-            return default(IPersonModel<T>);
+            return default(IPersonModel<IPersonFunctionModel>);
         }
 
         /// <summary>Removes the non function and set identifiers person.</summary>
@@ -81,7 +81,7 @@ namespace CampusAppWPortalLib8.Model.Person
             List<T> removeList = new List<T>();
             foreach (T item in this.Persons)
             {
-                IPersonModel<T> tmpPerson = item as IPersonModel<T>;
+                IPersonModel<IPersonFunctionModel> tmpPerson = item as IPersonModel<IPersonFunctionModel>;
                 if (tmpPerson == null)
                 {
                     continue;
diff --git a/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonModel.cs b/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonModel.cs
index 91623e1a..931104d3 100644
--- a/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonModel.cs
+++ b/CampusAppWP8/CampusAppWPortalLib8/Model/Person/PersonModel.cs
@@ -13,7 +13,7 @@ namespace CampusAppWPortalLib8.Model.Person
     /// <summary>Person model.</summary>
     /// <remarks>Stubbfel, 05.09.2013.</remarks>
     /// <typeparam name="T">template for the PersonFunction-Class</typeparam>
-    public class PersonModel<T> : IPersonModel<T>
+    public class PersonModel<T> : IPersonModel<T> where T : IPersonFunctionModel
     {
         #region Member