diff --git a/GBase.Api/Services/IGBaseEntryService.cs b/GBase.Api/Services/IGBaseEntryService.cs
index 18e22c9..edf87fc 100644
--- a/GBase.Api/Services/IGBaseEntryService.cs
+++ b/GBase.Api/Services/IGBaseEntryService.cs
@@ -10,6 +10,7 @@ namespace GBase.Api.Services
     [ServiceContract]
     public interface IGBaseEntryService : IAsyncDisposable //TODO: Add OperationContracts for all operations this service has to do
     {
-        
+        [OperationContract]
+        void Dummy();
     }
 }
\ No newline at end of file
diff --git a/GBase.Api/Services/IGBaseTableService.cs b/GBase.Api/Services/IGBaseTableService.cs
index 1cec2d5..982572c 100644
--- a/GBase.Api/Services/IGBaseTableService.cs
+++ b/GBase.Api/Services/IGBaseTableService.cs
@@ -10,6 +10,7 @@ namespace GBase.Api.Services
     [ServiceContract]
     public interface IGBaseTableService : IAsyncDisposable //TODO: Add OperationContracts for all operations this service has to do
     {
-        
+        [OperationContract]
+        void Dummy();
     }
 }
\ No newline at end of file
diff --git a/GBase.Client/Services/GBaseEntryService.cs b/GBase.Client/Services/GBaseEntryService.cs
index 37b8d6e..918d3ca 100644
--- a/GBase.Client/Services/GBaseEntryService.cs
+++ b/GBase.Client/Services/GBaseEntryService.cs
@@ -13,5 +13,10 @@ namespace GBase.Client.Services
         {
 
         }
+
+        public void Dummy()
+        {
+            throw new System.NotImplementedException();
+        }
     }
 }
\ No newline at end of file
diff --git a/GBase.Client/Services/GBaseTableService.cs b/GBase.Client/Services/GBaseTableService.cs
index 184c2d4..3bf5d40 100644
--- a/GBase.Client/Services/GBaseTableService.cs
+++ b/GBase.Client/Services/GBaseTableService.cs
@@ -13,5 +13,10 @@ namespace GBase.Client.Services
         {
 
         }
+
+        public void Dummy()
+        {
+            throw new System.NotImplementedException();
+        }
     }
 }
\ No newline at end of file
diff --git a/GBase.Server/Services/GBaseEntryService.cs b/GBase.Server/Services/GBaseEntryService.cs
index f9b8606..e1fbb53 100644
--- a/GBase.Server/Services/GBaseEntryService.cs
+++ b/GBase.Server/Services/GBaseEntryService.cs
@@ -9,6 +9,11 @@ namespace GBase.Server.Services
 {
     public class GBaseEntryService : IGBaseEntryService
     {
+        public void Dummy()
+        {
+            throw new System.NotImplementedException();
+        }
+
         public async ValueTask DisposeAsync()
         {
             throw new System.NotImplementedException();
diff --git a/GBase.Server/Services/GBaseService.cs b/GBase.Server/Services/GBaseService.cs
index 826c0c6..72f3405 100644
--- a/GBase.Server/Services/GBaseService.cs
+++ b/GBase.Server/Services/GBaseService.cs
@@ -11,7 +11,7 @@ namespace GBase.Server.Services
     {
         public bool AddTable()
         {
-            throw new System.NotImplementedException();
+            return true;
         }
 
         public bool RemoveTable()
diff --git a/GBase.Server/Services/GBaseTableService.cs b/GBase.Server/Services/GBaseTableService.cs
index 2c556c2..c5e54cb 100644
--- a/GBase.Server/Services/GBaseTableService.cs
+++ b/GBase.Server/Services/GBaseTableService.cs
@@ -9,6 +9,11 @@ namespace GBase.Server.Services
 {
     public class GBaseTableService : IGBaseTableService
     {
+        public void Dummy()
+        {
+            throw new System.NotImplementedException();
+        }
+
         public async ValueTask DisposeAsync()
         {
             throw new System.NotImplementedException();