diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Entities/Supply.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Entities/Supply.cs
index f43d558..51d9893 100644
--- a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Entities/Supply.cs
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Entities/Supply.cs
@@ -6,9 +6,10 @@ public class Supply
     public int SupplierId { get; private set; }
     public int ComponentId { get; private set; }
     public double Weight { get; private set; }
+    public bool Completed { get; private set; }
     public DateTime Date { get; private set; }
 
-    public static Supply CreateEntity(int id, int supplierid, int componentid, double weight)
+    public static Supply CreateEntity(int id, int supplierid, int componentid, double weight, bool completed)
     {
         return new Supply
         {
@@ -16,6 +17,7 @@ public class Supply
             SupplierId = supplierid,
             ComponentId = componentid,
             Weight = weight,
+            Completed = completed,
             Date = DateTime.Now
         };
     }
diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IClientRepository.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IClientRepository.cs
new file mode 100644
index 0000000..75a555c
--- /dev/null
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IClientRepository.cs
@@ -0,0 +1,16 @@
+using ProjectConfectionaryFactory.Entities;
+
+namespace ProjectConfectionaryFactory.Repositories;
+
+public interface IClientRepository
+{
+    IEnumerable<Client> ReadClients();
+
+    Client ReadClientById(int id);
+
+    void CreateClient(Client client);
+
+    void UpdateClient(Client client);
+
+    void DeleteClient(int id);
+}
diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IComponentRepository.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IComponentRepository.cs
new file mode 100644
index 0000000..b492d82
--- /dev/null
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IComponentRepository.cs
@@ -0,0 +1,16 @@
+using ProjectConfectionaryFactory.Entities;
+
+namespace ProjectConfectionaryFactory.Repositories;
+
+public interface IComponentRepository
+{
+    IEnumerable<Component> ReadComponents();
+
+    Component ReadComponentById(int id);
+
+    void CreateComponent(Component component);
+
+    void UpdateComponent(Component component);
+
+    void DeleteComponent(int id);
+}
diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IOrderRepository.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IOrderRepository.cs
new file mode 100644
index 0000000..7362079
--- /dev/null
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IOrderRepository.cs
@@ -0,0 +1,16 @@
+using ProjectConfectionaryFactory.Entities;
+
+namespace ProjectConfectionaryFactory.Repositories;
+
+public interface IOrderRepository
+{
+    IEnumerable<Order> ReadOrders();
+
+    Order ReadOrderById(int id);
+
+    void CreateOrder(Order order);
+
+    void UpdateOrder(Order order);
+
+    void DeleteOrder(int id);
+}
diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IProductRepository.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IProductRepository.cs
new file mode 100644
index 0000000..8f2f20f
--- /dev/null
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/IProductRepository.cs
@@ -0,0 +1,16 @@
+using ProjectConfectionaryFactory.Entities;
+
+namespace ProjectConfectionaryFactory.Repositories;
+
+public interface IProductRepository
+{
+    IEnumerable<Product> ReadProducts();
+
+    Product ReadProductById(int id);
+
+    void CreateProduct(Product product);
+
+    void UpdateProduct(Product product);
+
+    void DeleteProduct(int id);
+}
diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/ISupplierRepository.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/ISupplierRepository.cs
new file mode 100644
index 0000000..b210535
--- /dev/null
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/ISupplierRepository.cs
@@ -0,0 +1,17 @@
+using ProjectConfectionaryFactory.Entities;
+
+namespace ProjectConfectionaryFactory.Repositories;
+
+public interface ISupplierRepository
+{
+
+    IEnumerable<Supplier> ReadSuppliers();
+
+    Supplier ReadSupplierById(int id);
+
+    void CreateSupplier(Supplier supplier);
+
+    void UpdateSupplier(Supplier supplier);
+
+    void DeleteSupplier(int id);
+}
\ No newline at end of file
diff --git a/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/ISupplyRepository.cs b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/ISupplyRepository.cs
new file mode 100644
index 0000000..706312e
--- /dev/null
+++ b/ProjectConfectionaryFactory/ProjectConfectionaryFactory/Repositories/ISupplyRepository.cs
@@ -0,0 +1,15 @@
+using ProjectConfectionaryFactory.Entities;
+
+namespace ProjectConfectionaryFactory.Repositories;
+public interface ISupplyRepository
+{
+    IEnumerable<Supply> ReadSupplys();
+
+    Supply ReadSupplyById(int id);
+
+    void CreateSupply(Supply supply);
+
+    void UpdateSupply(Supply supply);
+
+    void DeleteSupply(int id);
+}