diff --git a/Bank/BankBusinessLogics/BankBusinessLogics.csproj b/Bank/BankBusinessLogics/BankBusinessLogics.csproj
index 1a65821..b84bde0 100644
--- a/Bank/BankBusinessLogics/BankBusinessLogics.csproj
+++ b/Bank/BankBusinessLogics/BankBusinessLogics.csproj
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+    <PackageReference Include="System.Drawing.Common" Version="7.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Bank/BankContracts/BindingModels/ClientBindingModel.cs b/Bank/BankContracts/BindingModels/ClientBindingModel.cs
index de133ff..14054a6 100644
--- a/Bank/BankContracts/BindingModels/ClientBindingModel.cs
+++ b/Bank/BankContracts/BindingModels/ClientBindingModel.cs
@@ -3,10 +3,12 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using BankDataModels;
+using BankDataModels.HelperInterfaces;
 
 namespace BankContracts.BindingModels
 {
-    internal class ClientBindingModel : IClientModel 
+    public class ClientBindingModel : IClientModel
     {
         public string FirstName { get; set; } = string.Empty;
 
diff --git a/Bank/BankContracts/BindingModels/PaymentBindingModel.cs b/Bank/BankContracts/BindingModels/PaymentBindingModel.cs
index 2c753f9..46ef434 100644
--- a/Bank/BankContracts/BindingModels/PaymentBindingModel.cs
+++ b/Bank/BankContracts/BindingModels/PaymentBindingModel.cs
@@ -3,10 +3,11 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using BankDataModels;
 
 namespace BankContracts.BindingModels
 {
-    internal class PaymentBindingModel : IPaymentModel
+    public class PaymentBindingModel : IPaymentModel
     {
         public DateOnly Date { get; set; } = DateOnly.FromDateTime(DateTime.Now);
 
diff --git a/Bank/BankContracts/BindingModels/PurchaseBindingModel.cs b/Bank/BankContracts/BindingModels/PurchaseBindingModel.cs
index 8685861..35c0183 100644
--- a/Bank/BankContracts/BindingModels/PurchaseBindingModel.cs
+++ b/Bank/BankContracts/BindingModels/PurchaseBindingModel.cs
@@ -3,10 +3,12 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using BankDataModels;
+using BankDataModels.ProxyModels;
 
 namespace BankContracts.BindingModels
 {
-    internal class PurchaseBindingModel : IPurchaseModel
+    public class PurchaseBindingModel : IPurchaseModel
     {
         public int ClientId { get; set; }
         public DateOnly DatePurchase { get; set; }
diff --git a/Bank/BankContracts/SearchModels/ClientSearchModel.cs b/Bank/BankContracts/SearchModels/ClientSearchModel.cs
index 88a10be..f263323 100644
--- a/Bank/BankContracts/SearchModels/ClientSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/ClientSearchModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace BankContracts.SearchModels
 {
-    internal class ClientSearchModel
+    public class ClientSearchModel
     {
         public int? Id { get; set; }
         public string? PhoneNumber { get; set; }
diff --git a/Bank/BankContracts/SearchModels/CostSearchModel.cs b/Bank/BankContracts/SearchModels/CostSearchModel.cs
index 81b6e65..8cc4d67 100644
--- a/Bank/BankContracts/SearchModels/CostSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/CostSearchModel.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+
 namespace BankContracts.SearchModels
 {
     public class CostSearchModel
diff --git a/Bank/BankContracts/SearchModels/EmployeeSearchModel.cs b/Bank/BankContracts/SearchModels/EmployeeSearchModel.cs
index 6d83017..4b43c09 100644
--- a/Bank/BankContracts/SearchModels/EmployeeSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/EmployeeSearchModel.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+
 namespace BankContracts.SearchModels
 {
     public class EmployeeSearchModel
diff --git a/Bank/BankContracts/SearchModels/OperationSearchModel.cs b/Bank/BankContracts/SearchModels/OperationSearchModel.cs
index 9843a41..27798a2 100644
--- a/Bank/BankContracts/SearchModels/OperationSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/OperationSearchModel.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+
 namespace BankContracts.SearchModels
 {
     public class OperationSearchModel
diff --git a/Bank/BankContracts/SearchModels/PaymentSearchModel.cs b/Bank/BankContracts/SearchModels/PaymentSearchModel.cs
index a2b7454..a47853a 100644
--- a/Bank/BankContracts/SearchModels/PaymentSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/PaymentSearchModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace BankContracts.SearchModels
 {
-    internal class PaymentSearchModel
+    public class PaymentSearchModel
     {
         public int? Id { get; set; }
         public int? OperationId { get; set; }
diff --git a/Bank/BankContracts/SearchModels/PurchaseSearchModel.cs b/Bank/BankContracts/SearchModels/PurchaseSearchModel.cs
index 6b80754..abaa30b 100644
--- a/Bank/BankContracts/SearchModels/PurchaseSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/PurchaseSearchModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace BankContracts.SearchModels
 {
-    internal class PurchaseSearchModel
+    public class PurchaseSearchModel
     {
         public int? Id { get; set; }
         public DateOnly? DateTo { get; set; }
diff --git a/Bank/BankDataModels/IClientModel.cs b/Bank/BankDataModels/IClientModel.cs
index d65c46e..f15d17a 100644
--- a/Bank/BankDataModels/IClientModel.cs
+++ b/Bank/BankDataModels/IClientModel.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace BankDataModels
 {
-    internal class IClientModel : IId
+    public interface IClientModel : IId
     {
         string Email { get; }
         string FirstName { get; }
diff --git a/Bank/BankDataModels/IPaymentModel.cs b/Bank/BankDataModels/IPaymentModel.cs
index b060139..b324464 100644
--- a/Bank/BankDataModels/IPaymentModel.cs
+++ b/Bank/BankDataModels/IPaymentModel.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace BankDataModels
 {
-    internal class IPaymentModel : IId
+    public interface IPaymentModel : IId
     {
         double PaidPrice { get; }
         DateOnly Date { get; }
diff --git a/Bank/BankDataModels/IPurchaseModel.cs b/Bank/BankDataModels/IPurchaseModel.cs
index be65742..5172bfb 100644
--- a/Bank/BankDataModels/IPurchaseModel.cs
+++ b/Bank/BankDataModels/IPurchaseModel.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace BankDataModels
 {
-    internal class IPurchaseModel : IId
+    public interface IPurchaseModel : IId
     {
         int ClientId { get; }
         DateOnly DatePurchase { get; }
diff --git a/Bank/BankDataModels/ProxyModels/CostByPurchaseModel.cs b/Bank/BankDataModels/ProxyModels/CostByPurchaseModel.cs
index 73827c0..1493c02 100644
--- a/Bank/BankDataModels/ProxyModels/CostByPurchaseModel.cs
+++ b/Bank/BankDataModels/ProxyModels/CostByPurchaseModel.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace BankDataModels.ProxyModels
 {
-    internal class CostByPurchaseModel : IId
+    public class CostByPurchaseModel : IId
     {
         public virtual int Id { get; set; }
         public virtual int CostId { get; set; }
diff --git a/Bank/BankDataModels/ProxyModels/OperationByPurchaseModel.cs b/Bank/BankDataModels/ProxyModels/OperationByPurchaseModel.cs
index af8d8af..41d3285 100644
--- a/Bank/BankDataModels/ProxyModels/OperationByPurchaseModel.cs
+++ b/Bank/BankDataModels/ProxyModels/OperationByPurchaseModel.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace BankDataModels.ProxyModels
 {
-    internal class OperationByPurchaseModel : IId
+    public class OperationByPurchaseModel : IId
     {
         public virtual int Id { get; set; }
         public virtual int OperationId { get; set; }