diff --git a/Sources/Model/Carte.cs b/Sources/Model/Carte.cs
index ab787f7..49679b7 100644
--- a/Sources/Model/Carte.cs
+++ b/Sources/Model/Carte.cs
@@ -28,7 +28,7 @@ namespace Model
                 }
             }
         }
-        public string LienImage { get; set; } = "notFound.jpg";
+        public string LienImage { get; set; } = "notFound";
  
         public Carte(string nom, string pouvoir, string strategies, int? note, string lienImage, string description)
         {
diff --git a/Sources/Model/Class1.cs b/Sources/Model/Class1.cs
deleted file mode 100644
index d5428ff..0000000
--- a/Sources/Model/Class1.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace Model
-{
-    internal class Class1
-    {
-    }
-}
diff --git a/Sources/Model/DataManager.cs b/Sources/Model/DataManager.cs
new file mode 100644
index 0000000..e6cfe5d
--- /dev/null
+++ b/Sources/Model/DataManager.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Collections.ObjectModel;
+
+namespace Model
+{
+    public class Manager
+    {
+        public ReadOnlyObservableCollection<Carte> SomeCartes { get; private set; }
+        private readonly ObservableCollection<Carte> someCartes = new ObservableCollection<Carte>();
+
+        private IDataManager DataMgr { get; set; }
+        public Manager()
+        {
+            SomeCartes = new(someCartes);
+        }
+        public bool AddCarte(Carte carte)
+        {
+            if (someCartes.Contains(carte)) return false;
+            someCartes.Add(carte);
+            return true;
+        }
+
+        public bool RemoveCarte(Carte carte)
+        {
+            if (!someCartes.Contains(carte)) { return false; }
+            someCartes.Remove(carte);
+            return true;
+        }
+    }
+}
diff --git a/Sources/Model/IdDataManager.cs b/Sources/Model/IdDataManager.cs
new file mode 100644
index 0000000..36b8f0e
--- /dev/null
+++ b/Sources/Model/IdDataManager.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Model
+{
+    public interface IDataManager
+    {
+        ReadOnlyObservableCollection<Carte> SomeCartes { get; }
+        bool AddCarte(Carte carte);
+        bool RemoveCarte(Carte carte);
+    }
+}