diff --git a/CarService/CarService.sln b/CarService/CarService.sln
index 3126932..fc99e2d 100644
--- a/CarService/CarService.sln
+++ b/CarService/CarService.sln
@@ -7,6 +7,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleMainApp", "ConsoleMa
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarServiceDataBaseImplements", "CarServiceDataBaseImplements\CarServiceDataBaseImplements.csproj", "{48D159D4-7150-417E-BBE9-2B636E1EAFFB}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarServiceDataModels", "CarServiceDataModels\CarServiceDataModels.csproj", "{7E6DC5DC-32CA-464C-884C-D949742DBF07}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +23,10 @@ Global
 		{48D159D4-7150-417E-BBE9-2B636E1EAFFB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{48D159D4-7150-417E-BBE9-2B636E1EAFFB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{48D159D4-7150-417E-BBE9-2B636E1EAFFB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7E6DC5DC-32CA-464C-884C-D949742DBF07}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7E6DC5DC-32CA-464C-884C-D949742DBF07}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7E6DC5DC-32CA-464C-884C-D949742DBF07}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7E6DC5DC-32CA-464C-884C-D949742DBF07}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/CarService/CarServiceDataBaseImplements/CarServiceDataBase.cs b/CarService/CarServiceDataBaseImplements/CarServiceDataBase.cs
index 75ce2cf..7010f98 100644
--- a/CarService/CarServiceDataBaseImplements/CarServiceDataBase.cs
+++ b/CarService/CarServiceDataBaseImplements/CarServiceDataBase.cs
@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+using CarServiceDataBaseImplements.Models;
+using Microsoft.EntityFrameworkCore;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -7,16 +8,20 @@ using System.Threading.Tasks;
 
 namespace CarServiceDataBaseImplements
 {
-    public class CarServiceDataBase : DbContext 
+    public class CarServiceDataBase : DbContext
     {
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
         {
-            if(optionsBuilder.IsConfigured == false)
+            if (optionsBuilder.IsConfigured == false)
             {
                 optionsBuilder.UseNpgsql("Host=localhost;Database=CarServiceDataBase;Username=postgres;Password=postgres");
             }
             base.OnConfiguring(optionsBuilder);
         }
-
+        public virtual DbSet<Car> Cars { get; set; }
+        public virtual DbSet<Client> Clients { get; set; }
+        public virtual DbSet<Receipt> Receipts { get; set; }
+        public virtual DbSet<Service> Services { get; set; }
+        public virtual DbSet<Staff> Staffs { get; set; }
     }
 }
diff --git a/CarService/CarServiceDataBaseImplements/CarServiceDataBaseImplements.csproj b/CarService/CarServiceDataBaseImplements/CarServiceDataBaseImplements.csproj
index 7003c17..7a344b6 100644
--- a/CarService/CarServiceDataBaseImplements/CarServiceDataBaseImplements.csproj
+++ b/CarService/CarServiceDataBaseImplements/CarServiceDataBaseImplements.csproj
@@ -8,7 +8,15 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\CarServiceDataModels\CarServiceDataModels.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/CarService/CarServiceDataBaseImplements/Migrations/20240505121028_InitMigration.Designer.cs b/CarService/CarServiceDataBaseImplements/Migrations/20240505121028_InitMigration.Designer.cs
new file mode 100644
index 0000000..357a5bf
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Migrations/20240505121028_InitMigration.Designer.cs
@@ -0,0 +1,125 @@
+// <auto-generated />
+using System;
+using CarServiceDataBaseImplements;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace CarServiceDataBaseImplements.Migrations
+{
+    [DbContext(typeof(CarServiceDataBase))]
+    [Migration("20240505121028_InitMigration")]
+    partial class InitMigration
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Car", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Brand")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Cars");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Client", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Receipt", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateOfApplication")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Receipts");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Service", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Services");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Staff", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PositionAtWork")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Staffs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Migrations/20240505121028_InitMigration.cs b/CarService/CarServiceDataBaseImplements/Migrations/20240505121028_InitMigration.cs
new file mode 100644
index 0000000..0b90f76
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Migrations/20240505121028_InitMigration.cs
@@ -0,0 +1,103 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace CarServiceDataBaseImplements.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitMigration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Cars",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Brand = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Cars", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Clients",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Email = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Clients", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Receipts",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    DateOfApplication = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Receipts", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Services",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Services", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Staffs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    PositionAtWork = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Staffs", x => x.Id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Cars");
+
+            migrationBuilder.DropTable(
+                name: "Clients");
+
+            migrationBuilder.DropTable(
+                name: "Receipts");
+
+            migrationBuilder.DropTable(
+                name: "Services");
+
+            migrationBuilder.DropTable(
+                name: "Staffs");
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Migrations/CarServiceDataBaseModelSnapshot.cs b/CarService/CarServiceDataBaseImplements/Migrations/CarServiceDataBaseModelSnapshot.cs
new file mode 100644
index 0000000..4c44a3d
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Migrations/CarServiceDataBaseModelSnapshot.cs
@@ -0,0 +1,122 @@
+// <auto-generated />
+using System;
+using CarServiceDataBaseImplements;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace CarServiceDataBaseImplements.Migrations
+{
+    [DbContext(typeof(CarServiceDataBase))]
+    partial class CarServiceDataBaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Car", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Brand")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Cars");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Client", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Receipt", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateOfApplication")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Receipts");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Service", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Services");
+                });
+
+            modelBuilder.Entity("CarServiceDataBaseImplements.Models.Staff", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PositionAtWork")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Staffs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Models/Car.cs b/CarService/CarServiceDataBaseImplements/Models/Car.cs
new file mode 100644
index 0000000..8dd6765
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Models/Car.cs
@@ -0,0 +1,35 @@
+using CarServiceDataModels.Models;
+using CarServiceDataModels.ModelsImplements;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataBaseImplements.Models
+{
+    public class Car : ICar
+    {
+        [Required]
+        public string Brand {get; set;} = string.Empty;
+        public int Id { get; set; }
+
+        public static Car? Create(CarModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Car()
+            {
+                Id = model.Id,
+                Brand = model.Brand
+            };
+        }
+        public void Update(CarModel? model) {
+        if (model == null) { return; }
+        Brand = model.Brand;
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Models/Client.cs b/CarService/CarServiceDataBaseImplements/Models/Client.cs
new file mode 100644
index 0000000..21d00a0
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Models/Client.cs
@@ -0,0 +1,41 @@
+using CarServiceDataModels.Models;
+using CarServiceDataModels.ModelsImplements;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataBaseImplements.Models
+{
+    public class Client : IClient
+    {
+        [Required]
+        public string Name { get; set; } = String.Empty;
+        [Required]
+        public string Email { get; set; } = String.Empty;
+
+        public int Id { get; set; }
+
+        public static Client? Create(ClientModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Client()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Email = model.Email
+            };
+        }
+        public void Update(ClientModel? model)
+        {
+            if (model == null) { return; }
+            Name = model.Name;
+            Email = model.Email;
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Models/Receipt.cs b/CarService/CarServiceDataBaseImplements/Models/Receipt.cs
new file mode 100644
index 0000000..99ba8c9
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Models/Receipt.cs
@@ -0,0 +1,38 @@
+using CarServiceDataModels.Models;
+using CarServiceDataModels.ModelsImplements;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace CarServiceDataBaseImplements.Models
+{
+    public class Receipt : IReceipt
+    {
+        [Required]
+        public DateTime DateOfApplication { get; set; } = DateTime.Now;
+
+        public int Id { get; set; }
+
+        public static Receipt? Create(ReceiptModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Receipt()
+            {
+                Id = model.Id,
+                DateOfApplication = model.DateOfApplication,
+            };
+        }
+        public void Update(ReceiptModel? model)
+        {
+            if (model == null) { return; }
+            DateOfApplication = model.DateOfApplication;
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Models/Service.cs b/CarService/CarServiceDataBaseImplements/Models/Service.cs
new file mode 100644
index 0000000..dbbb5e4
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Models/Service.cs
@@ -0,0 +1,41 @@
+using CarServiceDataModels.Models;
+using CarServiceDataModels.ModelsImplements;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataBaseImplements.Models
+{
+    public class Service : IService
+    {
+        [Required]
+        public string Name { get; set; }
+        [Required]
+        public double Price { get; set; }
+
+        public int Id { get; set; }
+
+        public static Service? Create(ServiceModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Service()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Price = model.Price
+            };
+        }
+        public void Update(ServiceModel? model)
+        {
+            if (model == null) { return; }
+            Name = model.Name;
+            Price = model.Price;
+        }
+    }
+}
diff --git a/CarService/CarServiceDataBaseImplements/Models/Staff.cs b/CarService/CarServiceDataBaseImplements/Models/Staff.cs
new file mode 100644
index 0000000..a3080b5
--- /dev/null
+++ b/CarService/CarServiceDataBaseImplements/Models/Staff.cs
@@ -0,0 +1,42 @@
+using CarServiceDataModels.Models;
+using CarServiceDataModels.ModelsImplements;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataBaseImplements.Models
+{
+    public class Staff : IStaff
+    {
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public string PositionAtWork { get; set; } = string.Empty;
+
+        public int Id { get; set; }
+
+        public static Staff? Create(StaffModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Staff()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                PositionAtWork = model.PositionAtWork,
+            };
+        }
+        public void Update(StaffModel? model)
+        {
+            if (model == null) { return; }
+            Name = model.Name;
+            PositionAtWork = model.PositionAtWork;
+        }
+    }
+}
diff --git a/CarService/CarServiceDataModels/CarServiceDataModels.csproj b/CarService/CarServiceDataModels/CarServiceDataModels.csproj
new file mode 100644
index 0000000..cfadb03
--- /dev/null
+++ b/CarService/CarServiceDataModels/CarServiceDataModels.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/CarService/CarServiceDataModels/Models/ICar.cs b/CarService/CarServiceDataModels/Models/ICar.cs
new file mode 100644
index 0000000..bb05930
--- /dev/null
+++ b/CarService/CarServiceDataModels/Models/ICar.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.Models
+{
+    public interface ICar : Iid
+    {
+        string Brand { get; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/Models/IClient.cs b/CarService/CarServiceDataModels/Models/IClient.cs
new file mode 100644
index 0000000..5861897
--- /dev/null
+++ b/CarService/CarServiceDataModels/Models/IClient.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.Models
+{
+    public interface IClient : Iid
+    {
+        string Name { get; }
+        string Email { get; }
+
+    }
+}
diff --git a/CarService/CarServiceDataModels/Models/IReceipt.cs b/CarService/CarServiceDataModels/Models/IReceipt.cs
new file mode 100644
index 0000000..3962776
--- /dev/null
+++ b/CarService/CarServiceDataModels/Models/IReceipt.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.Models
+{
+    public interface IReceipt : Iid
+    {
+        DateTime DateOfApplication { get; }
+
+    }
+}
diff --git a/CarService/CarServiceDataModels/Models/IService.cs b/CarService/CarServiceDataModels/Models/IService.cs
new file mode 100644
index 0000000..455bf68
--- /dev/null
+++ b/CarService/CarServiceDataModels/Models/IService.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.Models
+{
+    public interface IService : Iid
+    {
+        string Name { get; }
+        double Price { get; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/Models/IStaff.cs b/CarService/CarServiceDataModels/Models/IStaff.cs
new file mode 100644
index 0000000..5f38cd2
--- /dev/null
+++ b/CarService/CarServiceDataModels/Models/IStaff.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.Models
+{
+    public interface IStaff : Iid
+    {
+        string Name { get; }
+        string PositionAtWork { get; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/Models/Iid.cs b/CarService/CarServiceDataModels/Models/Iid.cs
new file mode 100644
index 0000000..b2589c4
--- /dev/null
+++ b/CarService/CarServiceDataModels/Models/Iid.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.Models
+{
+    public interface Iid
+    {
+        int Id { get; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/ModelsImplements/CarModel.cs b/CarService/CarServiceDataModels/ModelsImplements/CarModel.cs
new file mode 100644
index 0000000..94363a0
--- /dev/null
+++ b/CarService/CarServiceDataModels/ModelsImplements/CarModel.cs
@@ -0,0 +1,16 @@
+using CarServiceDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.ModelsImplements
+{
+    public class CarModel : ICar
+    {
+        public string Brand {get; set;} = string.Empty;
+
+        public int Id { get; set;}
+    }
+}
diff --git a/CarService/CarServiceDataModels/ModelsImplements/ClientModel.cs b/CarService/CarServiceDataModels/ModelsImplements/ClientModel.cs
new file mode 100644
index 0000000..9523451
--- /dev/null
+++ b/CarService/CarServiceDataModels/ModelsImplements/ClientModel.cs
@@ -0,0 +1,18 @@
+using CarServiceDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.ModelsImplements
+{
+    public class ClientModel : IClient
+    {
+        public string Name {get;set;} = string.Empty;
+
+        public string Email { get; set; } = string.Empty;
+
+        public int Id { get; set; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/ModelsImplements/ReceiptModel.cs b/CarService/CarServiceDataModels/ModelsImplements/ReceiptModel.cs
new file mode 100644
index 0000000..a14cf00
--- /dev/null
+++ b/CarService/CarServiceDataModels/ModelsImplements/ReceiptModel.cs
@@ -0,0 +1,16 @@
+using CarServiceDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.ModelsImplements
+{
+    public class ReceiptModel : IReceipt
+    {
+        public DateTime DateOfApplication { get; set; } = DateTime.Now;
+
+        public int Id { get; set; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/ModelsImplements/ServiceModel.cs b/CarService/CarServiceDataModels/ModelsImplements/ServiceModel.cs
new file mode 100644
index 0000000..86b0343
--- /dev/null
+++ b/CarService/CarServiceDataModels/ModelsImplements/ServiceModel.cs
@@ -0,0 +1,18 @@
+using CarServiceDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.ModelsImplements
+{
+    public class ServiceModel : IService
+    {
+        public string Name { get; set; } = string.Empty;
+
+        public double Price { get; set; }
+
+        public int Id { get; set; }
+    }
+}
diff --git a/CarService/CarServiceDataModels/ModelsImplements/StaffModel.cs b/CarService/CarServiceDataModels/ModelsImplements/StaffModel.cs
new file mode 100644
index 0000000..8cbffb8
--- /dev/null
+++ b/CarService/CarServiceDataModels/ModelsImplements/StaffModel.cs
@@ -0,0 +1,18 @@
+using CarServiceDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarServiceDataModels.ModelsImplements
+{
+    public class StaffModel : IStaff
+    {
+        public string Name { get; set; } = string.Empty;
+
+        public string PositionAtWork { get; set; } = string.Empty;
+
+        public int Id { get; set; }
+    }
+}
diff --git a/CarService/ConsoleMainApp/ConsoleMainApp.csproj b/CarService/ConsoleMainApp/ConsoleMainApp.csproj
index 6b27552..26d39ad 100644
--- a/CarService/ConsoleMainApp/ConsoleMainApp.csproj
+++ b/CarService/ConsoleMainApp/ConsoleMainApp.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -8,6 +8,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Npgsql" Version="7.0.2" />
   </ItemGroup>
 
diff --git a/CarService/ConsoleMainApp/Program.cs b/CarService/ConsoleMainApp/Program.cs
index 3ee824f..d32fcd6 100644
--- a/CarService/ConsoleMainApp/Program.cs
+++ b/CarService/ConsoleMainApp/Program.cs
@@ -10,8 +10,19 @@ namespace ConsoleMainApp
         static void Main(string[] args)
         {
             using var context = new CarServiceDataBase();
-            context.Database.OpenConnection();
+            try
+            {
+                context.Database.OpenConnection();
+                Console.WriteLine("Connect open");
+            }
+            catch {
+                Console.WriteLine("Connect error");
+                return;
+            }
             context.Database.CloseConnection();
+            if(context.Database.GetDbConnection().State == System.Data.ConnectionState.Open) {
+                Console.WriteLine("Connect still open");
+            }
         }
     }
 }
\ No newline at end of file