diff --git a/CampusAppWP8/CampusAppWP8/Model/Utility/URLParamModel.cs b/CampusAppWP8/CampusAppWP8/Model/Utility/URLParamModel.cs
index e1f4dcf1..7ea84ed4 100644
--- a/CampusAppWP8/CampusAppWP8/Model/Utility/URLParamModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Utility/URLParamModel.cs
@@ -1,12 +1,96 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
+//-----------------------------------------------------------------------
+// <copyright file="URLParamModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>17.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Utility
 {
-     class URLParamModel
+    /// <summary>
+    /// This class is a Model for the URLParameter like GET-Parameter
+    /// </summary>
+    public class URLParamModel
     {
+        #region Members
+
+        /// <summary>
+        /// Variable of the key
+        /// </summary>
+        private readonly string key;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="URLParamModel" /> class.
+        /// </summary>
+        /// <param name="key">the key for the parameter</param>
+        public URLParamModel(string key)
+        {
+            this.key = key;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="URLParamModel" /> class.
+        /// </summary>
+        /// <param name="key">the key for the parameter</param>>
+        /// <param name="value">value of the parameter</param>
+        public URLParamModel(string key, string value)
+        {
+            this.key = key;
+            this.Value = value;
+        }
+        #endregion
+        #region Proberty
+
+        /// <summary>
+        ///  Gets or sets the value of the Parameter
+        /// </summary>
+        public string Value { get; set; }
+
+        /// <summary>
+        /// Gets the key of the parameter
+        /// </summary>
+        public string Key
+        {
+            get
+            {
+                return this.key;
+            }
+        }
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Method check if the parameter is valid
+        /// </summary>
+        /// <returns>true if is it valid, otherwise false</returns>
+        public virtual bool IsParamValid()
+        {
+            if (this.key == null || string.Empty.Equals(this.key) || string.Empty.Equals(this.Value))
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Method return a formatted string like Key=Value
+        /// </summary>
+        /// <returns> return formatted string</returns>
+        public override string ToString()
+        {
+            if (!this.IsParamValid())
+            {
+                return string.Empty;
+            }
+
+            return "&" + this.key + "=" + this.Value;
+        }
+        #endregion
     }
 }