diff --git a/Vetclinic/Vetclinic/Models/IMedPurchase.cs b/Vetclinic/Vetclinic/Models/IDrugPurchase.cs
similarity index 86%
rename from Vetclinic/Vetclinic/Models/IMedPurchase.cs
rename to Vetclinic/Vetclinic/Models/IDrugPurchase.cs
index aa7c722..420a32d 100644
--- a/Vetclinic/Vetclinic/Models/IMedPurchase.cs
+++ b/Vetclinic/Vetclinic/Models/IDrugPurchase.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace VetclinicDataModels.Models
 {
-	public interface IMedPurchase: IId
+	public interface IDrugPurchase: IId
 	{
 		int ClientId { get; }
 		double Cost { get; }
diff --git a/Vetclinic/VetclinicContracts/BindingModels/ClientBindingModel.cs b/Vetclinic/VetclinicContracts/BindingModels/ClientBindingModel.cs
new file mode 100644
index 0000000..d47d181
--- /dev/null
+++ b/Vetclinic/VetclinicContracts/BindingModels/ClientBindingModel.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VetclinicDataModels.Models;
+
+namespace VetclinicContracts.BindingModels
+{
+	public class ClientBindingModel: IClientModel
+	{
+		public int Id { get; set; }
+		public string ClientName { get; set; } = string.Empty;
+		public string Email { get; set; } = string.Empty;
+		public string Password { get; set; } = string.Empty;
+	}
+}
diff --git a/Vetclinic/VetclinicContracts/BusinessLogicsContracts/IClientLogic.cs b/Vetclinic/VetclinicContracts/BusinessLogicsContracts/IClientLogic.cs
new file mode 100644
index 0000000..b6a284c
--- /dev/null
+++ b/Vetclinic/VetclinicContracts/BusinessLogicsContracts/IClientLogic.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VetclinicContracts.BindingModels;
+using VetclinicContracts.SearchModels;
+
+namespace VetclinicContracts.BusinessLogicsContracts
+{
+	public interface IClientLogic
+	{
+		List<ClientViewModel>? ReadList(ClientSearchModel? model);
+		ClientViewModel? ReadElement(ClientSearchModel model);
+		bool Create(ClientBindingModel model);
+		bool Update(ClientBindingModel model);
+		bool Delete(ClientBindingModel model);
+	}
+}
diff --git a/Vetclinic/VetclinicContracts/SearchModels/ClientSearchModel.cs b/Vetclinic/VetclinicContracts/SearchModels/ClientSearchModel.cs
new file mode 100644
index 0000000..c2665ee
--- /dev/null
+++ b/Vetclinic/VetclinicContracts/SearchModels/ClientSearchModel.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VetclinicDataModels.Models;
+
+namespace VetclinicContracts.SearchModels
+{
+	public class ClientSearchModel
+	{
+		public int? Id { get; set; }
+		public string? ClientName { get; set; }
+		public string? Email { get; set; }
+		public string? Password { get; set; }
+	}
+}
diff --git a/Vetclinic/VetclinicContracts/StoragesContracts/IClientStorage.cs b/Vetclinic/VetclinicContracts/StoragesContracts/IClientStorage.cs
new file mode 100644
index 0000000..bb007eb
--- /dev/null
+++ b/Vetclinic/VetclinicContracts/StoragesContracts/IClientStorage.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VetclinicContracts.BindingModels;
+using VetclinicContracts.SearchModels;
+using VetclinicContracts.ViewModels;
+
+namespace VetclinicContracts.StoragesContracts
+{
+	public interface IClientStorage
+	{
+		List<ClientViewModel> GetFullList();
+		List<ClientViewModel> GetFiltredList(ClientSearchModel model);
+		ClientViewModel? GetElement(ClientSearchModel model);
+		ClientViewModel? Insert(ClientBindingModel model);
+		ClientViewModel? Update(ClientBindingModel model);
+		ClientViewModel? Delete(ClientBindingModel model);
+	}
+}
diff --git a/Vetclinic/VetclinicContracts/VetclinicContracts.csproj b/Vetclinic/VetclinicContracts/VetclinicContracts.csproj
index 27ac386..4a4f55a 100644
--- a/Vetclinic/VetclinicContracts/VetclinicContracts.csproj
+++ b/Vetclinic/VetclinicContracts/VetclinicContracts.csproj
@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Vetclinic\VetclinicDataModels.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/Vetclinic/VetclinicContracts/ViewModels/ClientViewModel.cs b/Vetclinic/VetclinicContracts/ViewModels/ClientViewModel.cs
new file mode 100644
index 0000000..c04e595
--- /dev/null
+++ b/Vetclinic/VetclinicContracts/ViewModels/ClientViewModel.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VetclinicDataModels.Models;
+
+namespace VetclinicContracts.ViewModels
+{
+	public class ClientViewModel: IClientModel
+	{
+		public int Id { get; set; }
+		[DisplayName("ФИО клиента")]
+		public string ClientName { get; set; } = string.Empty;
+		[DisplayName("Логин (эл. почта)")]
+		public string Email { get; set; } = string.Empty;
+		[DisplayName("Пароль")]
+		public string Password { get; set; } = string.Empty;
+	}
+}