diff --git a/Sources/MaSoluction/Data/IDataManager.cs b/Sources/MaSoluction/Data/IDataManager.cs
index 90dae86..7afceac 100644
--- a/Sources/MaSoluction/Data/IDataManager.cs
+++ b/Sources/MaSoluction/Data/IDataManager.cs
@@ -6,7 +6,11 @@ using System.Threading.Tasks;
 
 namespace Data
 {
-    internal interface IDataManager
+    public interface IDataManager
     {
+        public void AddDice();
+        public void RemoveDice();
+        public void clear();
+        public void AddDices();
     }
 }
diff --git a/Sources/MaSoluction/Model/Manager.cs b/Sources/MaSoluction/Model/Manager.cs
index e88378b..fb76ac0 100644
--- a/Sources/MaSoluction/Model/Manager.cs
+++ b/Sources/MaSoluction/Model/Manager.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -6,7 +7,17 @@ using System.Threading.Tasks;
 
 namespace Model
 {
-    internal class Manager
+    public class Manager
     {
+        List<Die> listDices = new List<Die>();
+
+        public void AddDice(Die d)
+        {
+            listDices.Add(d);
+        }
+        public void RemoveDice(Die d)
+        {
+            listDices.Remove(d);
+        }
     }
 }