diff --git a/School/SchoolContracts/BindingModels/AchievementBindingModel.cs b/School/SchoolContracts/BindingModels/AchievementBindingModel.cs
index 2bd774e..b293ecd 100644
--- a/School/SchoolContracts/BindingModels/AchievementBindingModel.cs
+++ b/School/SchoolContracts/BindingModels/AchievementBindingModel.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace SchoolContracts.BindingModels
 {
-    internal class AchievementBindingModel : IAchievementModel
+    public class AchievementBindingModel : IAchievementModel
     {
         public int Id { get; set; }
         public int LessonId { get; set; }
diff --git a/School/SchoolContracts/BusinessLogicsContracts/IAchievementLogic.cs b/School/SchoolContracts/BusinessLogicsContracts/IAchievementLogic.cs
new file mode 100644
index 0000000..60b80ce
--- /dev/null
+++ b/School/SchoolContracts/BusinessLogicsContracts/IAchievementLogic.cs
@@ -0,0 +1,20 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.BusinessLogicsContracts
+{
+    public interface IAchievementLogic
+    {
+        List<AchievementViewModel>? ReadList(AchievementSearchModel? model);
+        AchievementViewModel? ReadElement(AchievementSearchModel model);
+        bool Create(AchievementBindingModel model);
+        bool Update(AchievementBindingModel model);
+        bool Delete(AchievementBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/BusinessLogicsContracts/IInterestLogic.cs b/School/SchoolContracts/BusinessLogicsContracts/IInterestLogic.cs
new file mode 100644
index 0000000..1d8518e
--- /dev/null
+++ b/School/SchoolContracts/BusinessLogicsContracts/IInterestLogic.cs
@@ -0,0 +1,20 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.BusinessLogicsContracts
+{
+    public interface IInterestLogic
+    {
+        List<InterestViewModel>? ReadList(InterestSearchModel? model);
+        InterestViewModel? ReadElement(InterestSearchModel model);
+        bool Create(InterestBindingModel model);
+        bool Update(InterestBindingModel model);
+        bool Delete(InterestBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/BusinessLogicsContracts/ILessonLogic.cs b/School/SchoolContracts/BusinessLogicsContracts/ILessonLogic.cs
new file mode 100644
index 0000000..5a94de4
--- /dev/null
+++ b/School/SchoolContracts/BusinessLogicsContracts/ILessonLogic.cs
@@ -0,0 +1,20 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.BusinessLogicsContracts
+{
+    public interface ILessonLogic
+    {
+        List<LessonViewModel>? ReadList(LessonSearchModel? model);
+        LessonViewModel? ReadElement(LessonSearchModel model);
+        bool Create(LessonBindingModel model);
+        bool Update(LessonBindingModel model);
+        bool Delete(LessonBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/BusinessLogicsContracts/IUserLogic.cs b/School/SchoolContracts/BusinessLogicsContracts/IUserLogic.cs
new file mode 100644
index 0000000..02a060a
--- /dev/null
+++ b/School/SchoolContracts/BusinessLogicsContracts/IUserLogic.cs
@@ -0,0 +1,20 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.BusinessLogicsContracts
+{
+    public interface IUserLogic
+    {
+        List<UserViewModel>? ReadList(UserSearchModel? model);
+        UserViewModel? ReadElement(UserSearchModel model);
+        bool Create(UserBindingModel model);
+        bool Update(UserBindingModel model);
+        bool Delete(UserBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/SchoolContracts.csproj b/School/SchoolContracts/SchoolContracts.csproj
index c457f2f..6b94741 100644
--- a/School/SchoolContracts/SchoolContracts.csproj
+++ b/School/SchoolContracts/SchoolContracts.csproj
@@ -10,9 +10,4 @@
     <ProjectReference Include="..\SchoolsDataModels\SchoolDataModels.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="BusinessLogicsContracts\" />
-    <Folder Include="StoragesContracts\" />
-  </ItemGroup>
-
 </Project>
diff --git a/School/SchoolContracts/StoragesContracts/IAchievementStorage.cs b/School/SchoolContracts/StoragesContracts/IAchievementStorage.cs
new file mode 100644
index 0000000..fd84388
--- /dev/null
+++ b/School/SchoolContracts/StoragesContracts/IAchievementStorage.cs
@@ -0,0 +1,21 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.StoragesContracts
+{
+    public interface IAchievementStorage
+    {
+        List<AchievementViewModel> GetFullList();
+        List<AchievementViewModel> GetFilteredList(AchievementSearchModel model);
+        AchievementViewModel? GetElement(AchievementSearchModel model);
+        AchievementViewModel? Insert(AchievementBindingModel model);
+        AchievementViewModel? Update(AchievementBindingModel model);
+        AchievementViewModel? Delete(AchievementBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/StoragesContracts/IInterestStorage.cs b/School/SchoolContracts/StoragesContracts/IInterestStorage.cs
new file mode 100644
index 0000000..d0ec8a2
--- /dev/null
+++ b/School/SchoolContracts/StoragesContracts/IInterestStorage.cs
@@ -0,0 +1,21 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.StoragesContracts
+{
+    public interface IInterestStorage
+    {
+        List<InterestViewModel> GetFullList();
+        List<InterestViewModel> GetFilteredList(InterestSearchModel model);
+        InterestViewModel? GetElement(InterestSearchModel model);
+        InterestViewModel? Insert(InterestBindingModel model);
+        InterestViewModel? Update(InterestBindingModel model);
+        InterestViewModel? Delete(InterestBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/StoragesContracts/ILessonStorage.cs b/School/SchoolContracts/StoragesContracts/ILessonStorage.cs
new file mode 100644
index 0000000..f7870b3
--- /dev/null
+++ b/School/SchoolContracts/StoragesContracts/ILessonStorage.cs
@@ -0,0 +1,21 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.StoragesContracts
+{
+    public interface ILessonStorage
+    {
+        List<LessonViewModel> GetFullList();
+        List<LessonViewModel> GetFilteredList(LessonSearchModel model);
+        LessonViewModel? GetElement(LessonSearchModel model);
+        LessonViewModel? Insert(LessonBindingModel model);
+        LessonViewModel? Update(LessonBindingModel model);
+        LessonViewModel? Delete(LessonBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/StoragesContracts/IUserStorage.cs b/School/SchoolContracts/StoragesContracts/IUserStorage.cs
new file mode 100644
index 0000000..6db918d
--- /dev/null
+++ b/School/SchoolContracts/StoragesContracts/IUserStorage.cs
@@ -0,0 +1,21 @@
+using SchoolContracts.BindingModels;
+using SchoolContracts.SearchModels;
+using SchoolContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolContracts.StoragesContracts
+{
+    public interface IUserStorage
+    {
+        List<UserViewModel> GetFullList();
+        List<UserViewModel> GetFilteredList(UserSearchModel model);
+        UserViewModel? GetElement(UserSearchModel model);
+        UserViewModel? Insert(UserBindingModel model);
+        UserViewModel? Update(UserBindingModel model);
+        UserViewModel? Delete(UserBindingModel model);
+    }
+}
diff --git a/School/SchoolContracts/ViewModels/AchievementViewModel.cs b/School/SchoolContracts/ViewModels/AchievementViewModel.cs
index ad56f1b..f9e10f9 100644
--- a/School/SchoolContracts/ViewModels/AchievementViewModel.cs
+++ b/School/SchoolContracts/ViewModels/AchievementViewModel.cs
@@ -8,7 +8,7 @@ using System.ComponentModel;
 
 namespace SchoolContracts.ViewModels
 {
-    internal class AchievementViewModel : IAchievementModel
+    public class AchievementViewModel : IAchievementModel
     {
         public int Id { get; set; }
         public int LessonId { get; set; }
diff --git a/School/SchoolContracts/ViewModels/LessonViewModel.cs b/School/SchoolContracts/ViewModels/LessonViewModel.cs
index e1d6a27..5ec7104 100644
--- a/School/SchoolContracts/ViewModels/LessonViewModel.cs
+++ b/School/SchoolContracts/ViewModels/LessonViewModel.cs
@@ -8,7 +8,7 @@ using System.ComponentModel;
 
 namespace SchoolContracts.ViewModels
 {
-    internal class LessonViewModel : ILessonModel
+    public class LessonViewModel : ILessonModel
     {
         public int Id { get; set; }
         public int UserId { get; set; }
diff --git a/School/SchoolContracts/ViewModels/UserViewModel.cs b/School/SchoolContracts/ViewModels/UserViewModel.cs
index e43b0e7..37eb421 100644
--- a/School/SchoolContracts/ViewModels/UserViewModel.cs
+++ b/School/SchoolContracts/ViewModels/UserViewModel.cs
@@ -8,7 +8,7 @@ using System.ComponentModel;
 
 namespace SchoolContracts.ViewModels
 {
-    internal class UserViewModel : IUserModel
+    public class UserViewModel : IUserModel
     {
         public int Id { get; set; }
         [DisplayName("Имя пользователя")]