diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/BuildBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/BuildBindingModel.cs
new file mode 100644
index 0000000..a90636c
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/BuildBindingModel.cs
@@ -0,0 +1,13 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class BuildBindingModel : IBindingModel
+    {
+        public int Id { get; set; }
+        public string BuildName { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public int VendorId { get; set; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponent { get; set; } = new();
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/CommentBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/CommentBindingModel.cs
new file mode 100644
index 0000000..ac5cf8d
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/CommentBindingModel.cs
@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class CommentBindingModel : ICommentModel
+    {
+        public int Id { get; set; }
+        public DateTime Date { get; set; } = DateTime.Now;
+        public string Text { get; set; } = string.Empty;
+        public int BuildId { get; set; } 
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ComponentBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ComponentBindingModel.cs
new file mode 100644
index 0000000..ecc9bc5
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ComponentBindingModel.cs
@@ -0,0 +1,11 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class ComponentBindingModel : IComponentModel
+    {
+        public int Id { get; set; }
+        public string ComponentName { get; set; } = string.Empty;
+        public double Cost { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/OrderBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/OrderBindingModel.cs
new file mode 100644
index 0000000..fb0a72d
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/OrderBindingModel.cs
@@ -0,0 +1,15 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { get; set; }
+        public int CannedId { get; set; }
+        public int Count { get; set; }
+        public double Sum { get; set; }
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime? DateImplement { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ProductBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ProductBindingModel.cs
new file mode 100644
index 0000000..78b8a2e
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ProductBindingModel.cs
@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class ProductBindingModel : IProductModel
+    {
+        public int Id { get; set; }
+        public string ProductName { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/PurchaseBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/PurchaseBindingModel.cs
new file mode 100644
index 0000000..1e27ca0
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/PurchaseBindingModel.cs
@@ -0,0 +1,15 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class PurchaseBindingModel : IPurchaseModel
+    {
+        public int Id { get; set; }
+        public double Cost { get; set; }
+        public DateTime DateCreate { get; set; }
+        public int VendorId { get; set; }
+        public double Sum { get; set; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuild { get; set; } = new();
+        public Dictionary<int, (IProductModel, int)> PurchaseProduct { get; set; } = new();
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/StoreKeeperBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/StoreKeeperBindingModel.cs
new file mode 100644
index 0000000..144ade0
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/StoreKeeperBindingModel.cs
@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class StoreKeeperBindingModel : IStoreKeeperModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public string Email { get; set; } = string.Empty;
+        public string Password { get; set; } = string.Empty;
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/VendorBindingModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/VendorBindingModel.cs
new file mode 100644
index 0000000..9f4dc29
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/VendorBindingModel.cs
@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class VendorBindingModel : IVendorModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public string Email { get; set; } = string.Empty;
+        public string Password { get; set; } = string.Empty;
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ComputerHardwareStoreContracts.csproj b/ComputerHardwareStore/ComputerHardwareStoreContracts/ComputerHardwareStoreContracts.csproj
index fa71b7a..4e4937a 100644
--- a/ComputerHardwareStore/ComputerHardwareStoreContracts/ComputerHardwareStoreContracts.csproj
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ComputerHardwareStoreContracts.csproj
@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/BuildSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/BuildSearchModel.cs
new file mode 100644
index 0000000..3ad2c4a
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/BuildSearchModel.cs
@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class BuildSearchModel
+    {
+        public int? Id { get; set; }
+        public string? BuildName { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/CommentSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/CommentSearchModel.cs
new file mode 100644
index 0000000..1378964
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/CommentSearchModel.cs
@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class CommentSearchModel
+    {
+        public int? Id { get; set; }
+        public DateTime? Date { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ComponentSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ComponentSearchModel.cs
new file mode 100644
index 0000000..08a0f78
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ComponentSearchModel.cs
@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class ComponentSearchModel
+    {
+        public int? Id { get; set; }
+        public string? ComponentName { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/OrderSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/OrderSearchModel.cs
new file mode 100644
index 0000000..7dafd43
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/OrderSearchModel.cs
@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class OrderSearchModel
+    {
+        public int? Id { get; set; }
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ProductSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ProductSearchModel.cs
new file mode 100644
index 0000000..3a42376
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ProductSearchModel.cs
@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class ProductSearchModel
+    {
+        public int? Id { get; set; }
+        public string? ProductName { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/PurchaseSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/PurchaseSearchModel.cs
new file mode 100644
index 0000000..7464e92
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/PurchaseSearchModel.cs
@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class PurchaseSearchModel
+    {
+        public int? Id { get; set; }
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/StoreKeeperSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/StoreKeeperSearchModel.cs
new file mode 100644
index 0000000..e069ba1
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/StoreKeeperSearchModel.cs
@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class StoreKeeperSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Email { get; set; }
+        public string? Password { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/VendorSearchModel.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/VendorSearchModel.cs
new file mode 100644
index 0000000..f15394a
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/VendorSearchModel.cs
@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class VendorSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Email { get; set; }
+        public string? Password { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IBuidStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IBuidStorage.cs
new file mode 100644
index 0000000..fba13ee
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IBuidStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IBuidStorage
+    {
+        List<BuildViewModel> GetFullList();
+        List<BuildViewModel> GetFilteredList(BuildSearchModel model);
+        BuildViewModel? GetElement(BuildSearchModel model);
+        BuildViewModel? Insert(BuildBindingModel model);
+        BuildViewModel? Update(BuildBindingModel model);
+        BuildViewModel? Delete(BuildBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/ICommentStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/ICommentStorage.cs
new file mode 100644
index 0000000..feea16e
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/ICommentStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface ICommentStorage
+    {
+        List<CommentViewModel> GetFullList();
+        List<CommentViewModel> GetFilteredList(CommentSearchModel model);
+        CommentViewModel? GetElement(CommentSearchModel model);
+        CommentViewModel? Insert(CommentBindingModel model);
+        CommentViewModel? Update(CommentBindingModel model);
+        CommentViewModel? Delete(CommentBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IComponentStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IComponentStorage.cs
new file mode 100644
index 0000000..c7e606d
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IComponentStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IComponentStorage
+    {
+        List<ComponentViewModel> GetFullList();
+        List<ComponentViewModel> GetFilteredList(ComponentSearchModel model);
+        ComponentViewModel? GetElement(ComponentSearchModel model);
+        ComponentViewModel? Insert(ComponentBindingModel model);
+        ComponentViewModel? Update(ComponentBindingModel model);
+        ComponentViewModel? Delete(ComponentBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IOrderStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IOrderStorage.cs
new file mode 100644
index 0000000..85a0104
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IOrderStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+        List<OrderViewModel> GetFilteredList(OrderSearchModel model);
+        OrderViewModel? GetElement(OrderSearchModel model);
+        OrderViewModel? Insert(OrderBindingModel model);
+        OrderViewModel? Update(OrderBindingModel model);
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IProductStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IProductStorage.cs
new file mode 100644
index 0000000..393f523
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IProductStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IProductStorage
+    {
+        List<ProductViewModel> GetFullList();
+        List<ProductViewModel> GetFilteredList(ProductSearchModel model);
+        ProductViewModel? GetElement(ProductSearchModel model);
+        ProductViewModel? Insert(ProductBindingModel model);
+        ProductViewModel? Update(ProductBindingModel model);
+        ProductViewModel? Delete(ProductBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IPurchaseStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IPurchaseStorage.cs
new file mode 100644
index 0000000..af6b649
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IPurchaseStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IPurchaseStorage
+    {
+        List<PurchaseViewModel> GetFullList();
+        List<PurchaseViewModel> GetFilteredList(PurchaseSearchModel model);
+        PurchaseViewModel? GetElement(PurchaseSearchModel model);
+        PurchaseViewModel? Insert(PurchaseBindingModel model);
+        PurchaseViewModel? Update(PurchaseBindingModel model);
+        PurchaseViewModel? Delete(PurchaseBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IStoreKeeperStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IStoreKeeperStorage.cs
new file mode 100644
index 0000000..69f57d1
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IStoreKeeperStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IStoreKeeperStorage
+    {
+        List<StoreKeeperViewModel> GetFullList();
+        List<StoreKeeperViewModel> GetFilteredList(StoreKeeperSearchModel model);
+        StoreKeeperViewModel? GetElement(StoreKeeperSearchModel model);
+        StoreKeeperViewModel? Insert(StoreKeeperBindingModel model);
+        StoreKeeperViewModel? Update(StoreKeeperBindingModel model);
+        StoreKeeperViewModel? Delete(StoreKeeperBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IVendorStorage.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IVendorStorage.cs
new file mode 100644
index 0000000..96c9e1a
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IVendorStorage.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IVendorStorage
+    {
+        List<VendorViewModel> GetFullList();
+        List<VendorViewModel> GetFilteredList(VendorSearchModel model);
+        VendorViewModel? GetElement(VendorSearchModel model);
+        VendorViewModel? Insert(VendorBindingModel model);
+        VendorViewModel? Update(VendorBindingModel model);
+        VendorViewModel? Delete(VendorBindingModel model);
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/BuildModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/BuildModelContracts.cs
new file mode 100644
index 0000000..10ccf1b
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/BuildModelContracts.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class BuildModelContracts : IBuildModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название сборки")]
+        public string BuildName { get; }
+        [DisplayName("Стоимость")]
+        public double Price { get; }
+        public int VendorId { get; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponent { get; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/CommentModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/CommentModelContracts.cs
new file mode 100644
index 0000000..ff666ee
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/CommentModelContracts.cs
@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class CommentModelContracts : ICommentModel
+    {
+        public int Id { get; set; }
+        public DateTime Date { get; set; }
+        public string Text { get; set; }
+        public int BuildId { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ComponentModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ComponentModelContracts.cs
new file mode 100644
index 0000000..6bc7d6a
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ComponentModelContracts.cs
@@ -0,0 +1,14 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class ComponentModelContracts : IComponentModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название компонента")]
+        public string ComponentName { get; set; } = string.Empty;
+        [DisplayName("Цена")]
+        public double Cost { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/OrderModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/OrderModelContracts.cs
new file mode 100644
index 0000000..0a56ec2
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/OrderModelContracts.cs
@@ -0,0 +1,15 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class OrderModelContracts : IOrderModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Стоимость")]
+        public double Cost { get; set; }
+        [DisplayName("Дата создания")]
+        DateTime DateCreate { get; set; }
+        public Dictionary<int, (IProductModel, int)> OrderProduct { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ProductModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ProductModelContracts.cs
new file mode 100644
index 0000000..6a38c07
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ProductModelContracts.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class ProductModelContracts : IProductModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название изделия")]
+        public string CannedName { get; set; }
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> CannedComponents { get; set; } = new();
+
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/PurchaseModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/PurchaseModelContracts.cs
new file mode 100644
index 0000000..345e839
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/PurchaseModelContracts.cs
@@ -0,0 +1,20 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class PurchaseModelContracts : IPurchaseModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Стоимость")]
+        public double Cost { get; set; }
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; }
+        public int VendorId { get; set; }
+        [DisplayName("Сумма")]
+        public double Sum { get; set; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuild { get; set; }
+
+        public Dictionary<int, (IProductModel, int)> PurchaseProduct { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/StoreKeeperModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/StoreKeeperModelContracts.cs
new file mode 100644
index 0000000..6659ebf
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/StoreKeeperModelContracts.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class StoreKeeperModelContracts : IStoreKeeperModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Имя кладовщика")]
+        public string Name { get; set; }
+        [DisplayName("Логин")]
+        public string Login { get; set; }
+        [DisplayName("Пароль")]
+        public string Password { get; set; }
+    }
+}
diff --git a/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/VendorModelContracts.cs b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/VendorModelContracts.cs
new file mode 100644
index 0000000..1eb35eb
--- /dev/null
+++ b/ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/VendorModelContracts.cs
@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class VendorModelContracts : IVendorModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Имя продавца")]
+        public string Name { get; set; }
+        [DisplayName("Логин")]
+        public string Login { get; set; }
+        [DisplayName("Пароль")]
+        public string Password { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs b/ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs
index bddb1f6..045b5dd 100644
--- a/ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs
+++ b/ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs
@@ -4,6 +4,7 @@
     {
         double Cost { get; }
         DateTime DateCreate { get; }
+        int StoreKeeperId { get; }
         public Dictionary<int, (IProductModel, int)> OrderProduct { get; }
     }
 }