diff --git a/School/School.sln b/School/School.sln
index 3aff77e..e433f48 100644
--- a/School/School.sln
+++ b/School/School.sln
@@ -3,9 +3,11 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.2.32602.215
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SchoolApp", "SchoolApp\SchoolApp.csproj", "{9E7F8CCA-B349-49EC-B85E-D54299CC2759}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SchoolApp", "SchoolApp\SchoolApp.csproj", "{9E7F8CCA-B349-49EC-B85E-D54299CC2759}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SchoolDataModels", "SchoolsDataModels\SchoolDataModels.csproj", "{ADBB4992-BE2F-4B10-83CC-335E5B92EA35}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SchoolDataModels", "SchoolsDataModels\SchoolDataModels.csproj", "{ADBB4992-BE2F-4B10-83CC-335E5B92EA35}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SchoolContracts", "SchoolContracts\SchoolContracts.csproj", "{D58B0AFE-E28D-4583-B9F1-C0EDF443243F}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -21,6 +23,10 @@ Global
 		{ADBB4992-BE2F-4B10-83CC-335E5B92EA35}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{ADBB4992-BE2F-4B10-83CC-335E5B92EA35}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{ADBB4992-BE2F-4B10-83CC-335E5B92EA35}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D58B0AFE-E28D-4583-B9F1-C0EDF443243F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D58B0AFE-E28D-4583-B9F1-C0EDF443243F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D58B0AFE-E28D-4583-B9F1-C0EDF443243F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D58B0AFE-E28D-4583-B9F1-C0EDF443243F}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/School/SchoolContracts/BindingModels/AchievementBindingModel.cs b/School/SchoolContracts/BindingModels/AchievementBindingModel.cs
new file mode 100644
index 0000000..2bd774e
--- /dev/null
+++ b/School/SchoolContracts/BindingModels/AchievementBindingModel.cs
@@ -0,0 +1,20 @@
+using SchoolDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.BindingModels
+{
+    internal class AchievementBindingModel : IAchievementModel
+    {
+        public int Id { get; set; }
+        public int LessonId { get; set; }
+        public string Name { get; set; } = string.Empty;
+
+        public string Description { get; set; } = string.Empty;
+
+        public DateTime ReceiptDate { get; set; }
+    }
+}
diff --git a/School/SchoolContracts/BindingModels/InterestBindingModel.cs b/School/SchoolContracts/BindingModels/InterestBindingModel.cs
new file mode 100644
index 0000000..a78d981
--- /dev/null
+++ b/School/SchoolContracts/BindingModels/InterestBindingModel.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SchoolDataModels.Models;
+
+namespace SchoolContracts.BindingModels
+{
+    public class InterestBindingModel : IInterestModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public string Direction { get; set; } = string.Empty;
+        public string Discription { get; set; } = string.Empty;
+        public Dictionary<int, (ILessonModel, int)> InterestLessons
+        {
+            get;
+            set;
+        } = new();
+    }
+}
diff --git a/School/SchoolContracts/BindingModels/LessonBindingModel.cs b/School/SchoolContracts/BindingModels/LessonBindingModel.cs
new file mode 100644
index 0000000..fcaf4f7
--- /dev/null
+++ b/School/SchoolContracts/BindingModels/LessonBindingModel.cs
@@ -0,0 +1,21 @@
+using SchoolDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.BindingModels
+{
+    public class LessonBindingModel : ILessonModel
+    {
+        public int Id { get; set; }
+
+        public int UserId { get; set; }
+
+        public DateTime TimeStart { get; set; }
+
+        public DateTime TimeEnd { get; set; }
+        
+    }
+}
diff --git a/School/SchoolContracts/BindingModels/UserBindingModel.cs b/School/SchoolContracts/BindingModels/UserBindingModel.cs
new file mode 100644
index 0000000..1898c92
--- /dev/null
+++ b/School/SchoolContracts/BindingModels/UserBindingModel.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SchoolDataModels.Models;
+
+
+namespace SchoolContracts.BindingModels
+{
+    public class UserBindingModel : IUserModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+
+        public DateTime BirthDate { get; set; }
+
+        public string Mail { get; set; } = string.Empty;
+
+        public string PhoneNumber { get; set; } = string.Empty;
+
+        public string Password { get; set; } = string.Empty;
+    }
+}
diff --git a/School/SchoolContracts/SchoolContracts.csproj b/School/SchoolContracts/SchoolContracts.csproj
new file mode 100644
index 0000000..8172c1c
--- /dev/null
+++ b/School/SchoolContracts/SchoolContracts.csproj
@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SchoolsDataModels\SchoolDataModels.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="BusinessLogicsContracts\" />
+    <Folder Include="SearchModels\" />
+    <Folder Include="StoragesContracts\" />
+    <Folder Include="ViewModels\" />
+  </ItemGroup>
+
+</Project>
diff --git a/School/SchoolsDataModels/IId.cs b/School/SchoolsDataModels/IId.cs
index cda7e6d..bfaba1a 100644
--- a/School/SchoolsDataModels/IId.cs
+++ b/School/SchoolsDataModels/IId.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace SchoolDataModels
 {
-    internal interface IId
+    public interface IId
     {
         int Id { get; }
 
diff --git a/School/SchoolsDataModels/Models/IAchievementModel.cs b/School/SchoolsDataModels/Models/IAchievementModel.cs
index d715d2a..ab67b9b 100644
--- a/School/SchoolsDataModels/Models/IAchievementModel.cs
+++ b/School/SchoolsDataModels/Models/IAchievementModel.cs
@@ -6,11 +6,11 @@ using System.Threading.Tasks;
 
 namespace SchoolDataModels.Models
 {
-    internal interface IAchievementModel
+    public interface IAchievementModel : IId
     {
+        int LessonId { get; }
         string Name { get; }
         string Description { get; }
-        int UserId { get; }
         DateTime ReceiptDate { get; }
     }
 }
diff --git a/School/SchoolsDataModels/Models/IInterestModel.cs b/School/SchoolsDataModels/Models/IInterestModel.cs
index 2dead19..21e882f 100644
--- a/School/SchoolsDataModels/Models/IInterestModel.cs
+++ b/School/SchoolsDataModels/Models/IInterestModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace SchoolDataModels.Models
 {
-    internal interface IInterestModel
+    public interface IInterestModel : IId
     {
         string Name { get; }
 
@@ -14,5 +14,6 @@ namespace SchoolDataModels.Models
 
         string Discription { get; }
 
+        Dictionary<int, (ILessonModel, int)> InterestLessons { get; }
     }
 }
diff --git a/School/SchoolsDataModels/Models/ILessonModel.cs b/School/SchoolsDataModels/Models/ILessonModel.cs
index 49739d1..49c6379 100644
--- a/School/SchoolsDataModels/Models/ILessonModel.cs
+++ b/School/SchoolsDataModels/Models/ILessonModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace SchoolDataModels.Models
 {
-    internal interface ILessonModel
+    public interface ILessonModel : IId
     {
         int UserId { get; }
         DateTime TimeStart { get; }
diff --git a/School/SchoolsDataModels/Models/IUserModel.cs b/School/SchoolsDataModels/Models/IUserModel.cs
index 1e629da..5008d28 100644
--- a/School/SchoolsDataModels/Models/IUserModel.cs
+++ b/School/SchoolsDataModels/Models/IUserModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace SchoolDataModels.Models
 {
-    internal interface IUserModel
+    public interface IUserModel : IId
     {
         string Name { get; }
         DateTime BirthDate { get; }