diff --git a/GuiWPF/App.config b/GuiWPF/App.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/GuiWPF/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/GuiWPF/App.xaml b/GuiWPF/App.xaml
index 24a8184..e551053 100644
--- a/GuiWPF/App.xaml
+++ b/GuiWPF/App.xaml
@@ -1,7 +1,7 @@
-<Application x:Class="GuiWPF.App"
+<Application x:Class="WPF.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:local="clr-namespace:GuiWPF"
+             xmlns:local="clr-namespace:WPF"
              StartupUri="MainWindow.xaml">
     <Application.Resources>
          
diff --git a/GuiWPF/App.xaml.cs b/GuiWPF/App.xaml.cs
index d8f7545..4cb5730 100644
--- a/GuiWPF/App.xaml.cs
+++ b/GuiWPF/App.xaml.cs
@@ -6,13 +6,12 @@ using System.Linq;
 using System.Threading.Tasks;
 using System.Windows;
 
-namespace GuiWPF
+namespace WPF
 {
     /// <summary>
-    /// Interaction logic for App.xaml
+    /// Interaktionslogik für "App.xaml"
     /// </summary>
     public partial class App : Application
     {
-        
     }
 }
diff --git a/GuiWPF/AssemblyInfo.cs b/GuiWPF/AssemblyInfo.cs
deleted file mode 100644
index 2211234..0000000
--- a/GuiWPF/AssemblyInfo.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-using System.Windows;
-
-[assembly:ThemeInfo(
-    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
-                                     //(used if a resource is not found in the page,
-                                     // or application resource dictionaries)
-    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
-                                              //(used if a resource is not found in the page,
-                                              // app, or any theme specific resource dictionaries)
-)]
diff --git a/GuiWPF/DelegateCommand.cs b/GuiWPF/DelegateCommand.cs
index 563c40e..0fb734a 100644
--- a/GuiWPF/DelegateCommand.cs
+++ b/GuiWPF/DelegateCommand.cs
@@ -1,8 +1,14 @@
-using System;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
 using System.Windows.Input;
 
-namespace GuiWPF {
-    public class DelegateCommand : ICommand {
+namespace WPF
+{
+    public class DelegateCommand : ICommand
+    {
         /// <summary>
         /// Action to be performed when this command is executed
         /// </summary>
@@ -72,4 +78,4 @@ namespace GuiWPF {
             this.executionAction(parameter);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/GuiWPF/GuiWPF.csproj.user b/GuiWPF/GuiWPF.csproj.user
new file mode 100644
index 0000000..b5309f2
--- /dev/null
+++ b/GuiWPF/GuiWPF.csproj.user
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+  <ItemGroup />
+</Project>
\ No newline at end of file
diff --git a/GuiWPF/HomePage.cs b/GuiWPF/HomePage.cs
index 29d1360..16feaa0 100644
--- a/GuiWPF/HomePage.cs
+++ b/GuiWPF/HomePage.cs
@@ -1,5 +1,13 @@
-namespace GuiWPF {
-    public class HomePage {
-        public string PageTitle {get;set;}
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WPF
+{
+    public class HomePage
+    {
+        public string PageTitle { get; set; }
     }
-}
\ No newline at end of file
+}
diff --git a/GuiWPF/HomePageView.xaml b/GuiWPF/HomePageView.xaml
index b523fba..160631c 100644
--- a/GuiWPF/HomePageView.xaml
+++ b/GuiWPF/HomePageView.xaml
@@ -1,12 +1,13 @@
-<UserControl x:Class="GuiWPF.HomePageView"
-         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
-         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
-         mc:Ignorable="d" 
-         d:DesignHeight="300" d:DesignWidth="300">
-<Grid>
-<Button Content="lool"></Button>
-        <TextBlock FontSize="20" Text="Lala" />
-</Grid>
-</UserControl>
\ No newline at end of file
+<UserControl x:Class="WPF.HomePageView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:WPF"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800">
+    <Grid>
+        <TextBlock FontSize="20" Text="{Binding Path=PageTitle}" />
+
+    </Grid>
+</UserControl>
diff --git a/GuiWPF/HomePageView.xaml.cs b/GuiWPF/HomePageView.xaml.cs
new file mode 100644
index 0000000..e3d1408
--- /dev/null
+++ b/GuiWPF/HomePageView.xaml.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace WPF
+{
+    /// <summary>
+    /// Interaktionslogik für HomePageView.xaml
+    /// </summary>
+    public partial class HomePageView : UserControl
+    {
+        public HomePageView()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/GuiWPF/HomePageViewModel.cs b/GuiWPF/HomePageViewModel.cs
index 3e4073f..69eafaa 100644
--- a/GuiWPF/HomePageViewModel.cs
+++ b/GuiWPF/HomePageViewModel.cs
@@ -1,27 +1,26 @@
-using System;
+using System;
 using System.Collections.Generic;
-using System.Diagnostics;
+using System.Linq;
 using System.Text;
+using System.Threading.Tasks;
 
-namespace GuiWPF
+namespace WPF
 {
-    public class HomePageViewModel : ViewModelBase {
-        //public string PageTitle = "HomePage";
-        public HomePage Model {get; private set;}
-        public HomePageViewModel(HomePage model) {
+    public class HomePageViewModel : ViewModelBase
+    {
+        public HomePageViewModel(HomePage model)
+        {
             this.Model = model;
-            
         }
-
-        public string PageTitle {
-            get  {
-                return Model.PageTitle;
-            }
-            set {
-                Model.PageTitle = value;
-                OnPropertyChanged();
+        public HomePage Model { get; private set; }
+        public string PageTitle
+        {
+            get => this.Model.PageTitle;
+            set
+            {
+                this.Model.PageTitle = value;
+                this.OnPropertyChanged("PageTitle");
             }
         }
     }
-
-}
\ No newline at end of file
+}
diff --git a/GuiWPF/MainViewModel.cs b/GuiWPF/MainViewModel.cs
deleted file mode 100644
index da5c659..0000000
--- a/GuiWPF/MainViewModel.cs
+++ /dev/null
@@ -1,45 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Text;
-using System.Windows.Input;
-
-namespace GuiWPF
-{
-    public class MainViewModel : ViewModelBase
-    {
-        public string PageTitle { get; set; }
-        public ICommand LoadHomePageCommand {get; private set;}
-        public ICommand LoadSettingsPageCommand {get; private set;} 
-
-        private ViewModelBase _currentViewModel;
-        public ViewModelBase CurrentViewModel {
-            get {
-                Trace.WriteLine("CurrentAbgefragt");
-                return _currentViewModel;
-            }
-            set {
-                Trace.WriteLine("CurrentView ist geändert worden");
-                _currentViewModel = value;
-                OnPropertyChanged();
-            }
-        }
-
-        public MainViewModel()
-        {
-            PageTitle = "Dichtheitsprüfung by Damian";
-            LoadHomePage();
-            LoadHomePageCommand = new DelegateCommand(o => this.LoadHomePage());
-            LoadSettingsPageCommand = new DelegateCommand(o => this.LoadSettingsPage());
-            
-            //Initialisieren();
-        }
-
-        private void LoadHomePage() {           
-           CurrentViewModel = new HomePageViewModel(new HomePage() { PageTitle = "Home"});
-        }
-        private void LoadSettingsPage() {
-            CurrentViewModel = new SettingsPageViewModel();
-        }
-    }
-}
diff --git a/GuiWPF/MainWindow.xaml b/GuiWPF/MainWindow.xaml
index 856eefe..be2f97a 100644
--- a/GuiWPF/MainWindow.xaml
+++ b/GuiWPF/MainWindow.xaml
@@ -1,11 +1,11 @@
-<Window x:Class="GuiWPF.MainWindow"
+<Window x:Class="WPF.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:GuiWPF"
+        xmlns:local="clr-namespace:WPF"
         mc:Ignorable="d"
-        Title="{Binding PageTitle, StringFormat={} DP - {0}}" Height="450" Width="800">
+        Title="MainWindow" Height="450" Width="800">
     <Window.Resources>
         <DataTemplate DataType="{x:Type local:HomePageViewModel}">
             <local:HomePageView />
@@ -17,8 +17,8 @@
     <DockPanel>
         <StackPanel DockPanel.Dock="Left">
             <Button Content="Home Page" Command="{Binding Path=LoadHomePageCommand}" />
-            <Button Content="Settings Page" Command="{Binding Path=LoadSettingsPageCommand}"/>
+            <Button Content="Settings Page" Command="{Binding Path=LoadSettingsPageCommand}" />
         </StackPanel>
-        <ContentControl Content="{Binding CurrentViewModel}" Name="Contenter"></ContentControl>
+        <ContentControl Content="{Binding Path=CurrentViewModel}" />
     </DockPanel>
 </Window>
diff --git a/GuiWPF/MainWindow.xaml.cs b/GuiWPF/MainWindow.xaml.cs
index 302f829..61b6188 100644
--- a/GuiWPF/MainWindow.xaml.cs
+++ b/GuiWPF/MainWindow.xaml.cs
@@ -13,17 +13,17 @@ using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 using System.Windows.Shapes;
 
-namespace GuiWPF
+namespace WPF
 {
     /// <summary>
-    /// Interaction logic for MainWindow.xaml
+    /// Interaktionslogik für MainWindow.xaml
     /// </summary>
     public partial class MainWindow : Window
     {
         public MainWindow()
         {
-            //InitializeComponent();
-            //this.DataContext = new MainViewModel();
+            InitializeComponent();
+            this.DataContext = new MainWindowViewModel();
         }
     }
 }
diff --git a/GuiWPF/MainWindowViewModel.cs b/GuiWPF/MainWindowViewModel.cs
new file mode 100644
index 0000000..c46eedd
--- /dev/null
+++ b/GuiWPF/MainWindowViewModel.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace WPF
+{
+    public class MainWindowViewModel : ViewModelBase
+    {
+        public ICommand LoadHomePageCommand { get; private set; }
+        public ICommand LoadSettingsPageCommand { get; private set;}
+
+        private ViewModelBase _currentViewModel;
+        public ViewModelBase CurrentViewModel
+        {
+            get => _currentViewModel;
+            set
+            {
+                _currentViewModel = value;
+                OnPropertyChanged("CurrentViewModel");
+            }
+        }
+
+        public MainWindowViewModel()
+        {
+            this.LoadHomePage();
+            this.LoadHomePageCommand = new DelegateCommand(o => this.LoadHomePage());
+            this.LoadSettingsPageCommand = new DelegateCommand(o => this.LoadSettingsPage());
+        }
+
+        private void LoadHomePage()
+        {
+            CurrentViewModel = new HomePageViewModel(
+                new HomePage { PageTitle = "This is the Home Page" });
+        }
+
+        private void LoadSettingsPage()
+        {
+            CurrentViewModel = new SettingsPageViewModel(
+                new SettingsPage() { PageTitle = "This is the SettingsPage" });
+        }
+    }
+}
diff --git a/GuiWPF/NotificationObject.cs b/GuiWPF/NotificationObject.cs
deleted file mode 100644
index 94a10c7..0000000
--- a/GuiWPF/NotificationObject.cs
+++ /dev/null
@@ -1,21 +0,0 @@
-using System;
-using System.ComponentModel;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-
-namespace GuiWPF
-{
-    public class NotificationObject : INotifyPropertyChanged
-    {
-        public event PropertyChangedEventHandler PropertyChanged;
-
-        protected virtual void OnPropertyChanged([CallerMemberName]string propertyName="")
-        {
-            if(PropertyChanged != null)
-            {
-                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
-                Trace.WriteLine(string.Format("OnPropertyChanged {0}",propertyName));
-            }
-        }
-    }
-}
diff --git a/GuiWPF/SettingsPage.cs b/GuiWPF/SettingsPage.cs
new file mode 100644
index 0000000..740a5dc
--- /dev/null
+++ b/GuiWPF/SettingsPage.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WPF
+{
+    public class SettingsPage
+    {
+        public string PageTitle { get; set; }
+    }
+}
diff --git a/GuiWPF/SettingsPageView.xaml b/GuiWPF/SettingsPageView.xaml
index 7e2af54..686eef8 100644
--- a/GuiWPF/SettingsPageView.xaml
+++ b/GuiWPF/SettingsPageView.xaml
@@ -1,11 +1,12 @@
-<UserControl x:Class="GuiWPF.SettingsPageView"
-         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
-         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
-         mc:Ignorable="d" 
-         d:DesignHeight="300" d:DesignWidth="300">
-<Grid>
-    <TextBlock FontSize="20" Text="{Binding Path=PageTitle}" />
-</Grid>
-</UserControl>
\ No newline at end of file
+<UserControl x:Class="WPF.SettingsPageView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:WPF"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800">
+    <Grid>
+        <TextBlock FontSize="20" Text="{Binding Path=PageTitle}" />
+    </Grid>
+</UserControl>
diff --git a/GuiWPF/SettingsPageView.xaml.cs b/GuiWPF/SettingsPageView.xaml.cs
new file mode 100644
index 0000000..0cb00ce
--- /dev/null
+++ b/GuiWPF/SettingsPageView.xaml.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace WPF
+{
+    /// <summary>
+    /// Interaktionslogik für SettingsPageView.xaml
+    /// </summary>
+    public partial class SettingsPageView : UserControl
+    {
+        public SettingsPageView()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/GuiWPF/SettingsPageViewModel.cs b/GuiWPF/SettingsPageViewModel.cs
index f0cfb01..c240c33 100644
--- a/GuiWPF/SettingsPageViewModel.cs
+++ b/GuiWPF/SettingsPageViewModel.cs
@@ -1,11 +1,26 @@
-using System;
+using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Text;
+using System.Threading.Tasks;
 
-namespace GuiWPF
+namespace WPF
 {
-    public class SettingsPageViewModel : ViewModelBase {
-        public string PageTitle = "SettingsPage";
+    public class SettingsPageViewModel : ViewModelBase
+    {
+        public SettingsPageViewModel(SettingsPage model)
+        {
+            this.Model = model;
+        }
+        public SettingsPage Model { get; private set; }
+        public string PageTitle
+        {
+            get => this.Model.PageTitle;
+            set
+            {
+                this.Model.PageTitle = value;
+                this.OnPropertyChanged("PageTitle");
+            }
+        }
     }
-
-}
\ No newline at end of file
+}
diff --git a/GuiWPF/ViewModelBase.cs b/GuiWPF/ViewModelBase.cs
index 46e2b38..7f40984 100644
--- a/GuiWPF/ViewModelBase.cs
+++ b/GuiWPF/ViewModelBase.cs
@@ -1,37 +1,25 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
 using System.Text;
+using System.Threading.Tasks;
 
-namespace GuiWPF
+namespace WPF
 {
-    public class ViewModelBase : NotificationObject
+    public abstract class ViewModelBase : INotifyPropertyChanged
     {
-        private bool valIsBusy;
-        private string valBusyMessage;
-
-        public bool IsBusy
+        public event PropertyChangedEventHandler PropertyChanged;
+        protected void OnPropertyChanged(string propertyName)
         {
-            get => valIsBusy;
-            set
-            {
-                if(valIsBusy != value)
-                {
-                    valIsBusy = value;
-                    OnPropertyChanged();
-                }
-            }
+            this.OnPropertyChanged(new PropertyChangedEventArgs(propertyName));
         }
-        public string BusyMessage
+
+        protected virtual void OnPropertyChanged(PropertyChangedEventArgs e)
         {
-            get => valBusyMessage;
-            set
-            {
-                if(valBusyMessage != value)
-                {
-                    valBusyMessage = value;
-                    OnPropertyChanged();
-                }
-            }
+            var handler = this.PropertyChanged;
+            if (handler != null)
+                handler(this, e);
         }
     }
 }