diff --git a/Bank/BankDataModels/Models/IBankOperatorModel.cs b/Bank/BankDataModels/Models/IBankOperatorModel.cs
new file mode 100644
index 0000000..0fa4857
--- /dev/null
+++ b/Bank/BankDataModels/Models/IBankOperatorModel.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankDataModels.Models
+{
+    public interface IBankOperatorModel : IId
+    {
+        string Login { get; }
+        string Password { get; }
+        string FirstName { get; }
+        string LastName { get; }
+        string? MiddleName { get; }
+    }
+}
diff --git a/Bank/BankDataModels/Models/ICreditProgramModel.cs b/Bank/BankDataModels/Models/ICreditProgramModel.cs
new file mode 100644
index 0000000..a3af93a
--- /dev/null
+++ b/Bank/BankDataModels/Models/ICreditProgramModel.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankDataModels.Models
+{
+    public interface ICreditProgramModel : IId
+    {
+        string Name { get;}
+        int Persent { get;}
+        Dictionary<int, ICurrencyModel> Currencies { get; }
+    }
+}
diff --git a/Bank/BankDataModels/Models/ICurrencyModel.cs b/Bank/BankDataModels/Models/ICurrencyModel.cs
new file mode 100644
index 0000000..fe76b06
--- /dev/null
+++ b/Bank/BankDataModels/Models/ICurrencyModel.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankDataModels.Models
+{
+    public interface ICurrencyModel : IId
+    {
+        string Name { get; }
+    }
+}
diff --git a/Bank/BankDataModels/Models/ICurrencyPurchaseModel.cs b/Bank/BankDataModels/Models/ICurrencyPurchaseModel.cs
new file mode 100644
index 0000000..f325a67
--- /dev/null
+++ b/Bank/BankDataModels/Models/ICurrencyPurchaseModel.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankDataModels.Models
+{
+    public interface ICurrencyPurchaseModel : IId
+    {
+        float Amount { get; }
+        DateTime PurchaseDate { get;}
+        int BankOperatorId { get; }
+        int CurrencyId { get; }
+    }
+}
diff --git a/Bank/BankDataModels/Models/IDealModel.cs b/Bank/BankDataModels/Models/IDealModel.cs
index a0d801a..94bc617 100644
--- a/Bank/BankDataModels/Models/IDealModel.cs
+++ b/Bank/BankDataModels/Models/IDealModel.cs
@@ -9,7 +9,7 @@ namespace BankDataModels.Models
     public interface IDealModel : IId
     {
         int ClientId { get; }
-        DateTime Date { get; }
+        DateTime DealDate { get; }
         int OperatorId { get; }
         int CreditProgramId { get; }
     }