diff --git a/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IHeadsetLogic.cs b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IHeadsetLogic.cs
new file mode 100644
index 0000000..b9a8812
--- /dev/null
+++ b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IHeadsetLogic.cs
@@ -0,0 +1,15 @@
+using FurnitureContracts.BindingModels;
+using FurnitureContracts.SearchModels;
+using FurnitureContracts.ViewModel;
+
+namespace FurnitureContracts.BusinessLogicsContracts
+{
+    public interface IOrdersLogic
+    {
+        List<OrdersViewModel>? ReadList(OrderSearchModel? model);
+        OrdersViewModel? ReadElement(OrderSearchModel model);
+        bool Create(OrdersBindingModel model);
+        bool Update(OrdersBindingModel model);
+        bool Delete(OrdersBindingModel model);
+    }
+}
diff --git a/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IOrdersLogic.cs b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IOrdersLogic.cs
index 8bd95b2..cd36f1c 100644
--- a/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IOrdersLogic.cs
+++ b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IOrdersLogic.cs
@@ -4,12 +4,12 @@ using FurnitureContracts.ViewModel;
 
 namespace FurnitureContracts.BusinessLogicsContracts
 {
-    public class IOrdersLogic
+    public interface IRoleLogic
     {
-        List<OrdersViewModel>? ReadList(OrderSearchModel? model);
-        OrdersViewModel? ReadElement(OrderSearchModel model);
-        bool Create(OrdersBindingModel model);
-        bool Update(OrdersBindingModel model);
-        bool Delete(OrdersBindingModel model);
+        List<RoleViewModel>? ReadList(RoleSearchModel? model);
+        RoleViewModel? ReadElement(RoleSearchModel model);
+        bool Create(RoleBindingModel model);
+        bool Update(RoleBindingModel model);
+        bool Delete(RoleBindingModel model);
     }
 }
diff --git a/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IRoleLogic.cs b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IRoleLogic.cs
new file mode 100644
index 0000000..b9a8812
--- /dev/null
+++ b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/IRoleLogic.cs
@@ -0,0 +1,15 @@
+using FurnitureContracts.BindingModels;
+using FurnitureContracts.SearchModels;
+using FurnitureContracts.ViewModel;
+
+namespace FurnitureContracts.BusinessLogicsContracts
+{
+    public interface IOrdersLogic
+    {
+        List<OrdersViewModel>? ReadList(OrderSearchModel? model);
+        OrdersViewModel? ReadElement(OrderSearchModel model);
+        bool Create(OrdersBindingModel model);
+        bool Update(OrdersBindingModel model);
+        bool Delete(OrdersBindingModel model);
+    }
+}
diff --git a/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/ISalesSalonsLogic.cs b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/ISalesSalonsLogic.cs
new file mode 100644
index 0000000..b9a8812
--- /dev/null
+++ b/FurnitureFactory/FurnitureContracts/BusinessLogicsContracts/ISalesSalonsLogic.cs
@@ -0,0 +1,15 @@
+using FurnitureContracts.BindingModels;
+using FurnitureContracts.SearchModels;
+using FurnitureContracts.ViewModel;
+
+namespace FurnitureContracts.BusinessLogicsContracts
+{
+    public interface IOrdersLogic
+    {
+        List<OrdersViewModel>? ReadList(OrderSearchModel? model);
+        OrdersViewModel? ReadElement(OrderSearchModel model);
+        bool Create(OrdersBindingModel model);
+        bool Update(OrdersBindingModel model);
+        bool Delete(OrdersBindingModel model);
+    }
+}