diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/DiyBindingModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/DiyBindingModel.cs
new file mode 100644
index 0000000..2e334fc
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/DiyBindingModel.cs
@@ -0,0 +1,27 @@
+using SchoolAgainStudyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BindingModel
+{
+    public class DiyBindingModel : IDiy
+    {
+        public string Title { get; set; } = string.Empty;
+
+        public string Description { get; set; } = string.Empty;
+
+        public DateTime DateCreate { get; set; } = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
+
+        public int TaskId { get; set; }
+        public string TaskName { get; set; } = string.Empty;
+
+        public int StudentId { get; set; }  
+
+        public Dictionary<int, IInterest> DiyInterests { get; set; } = new();
+
+        public int Id { get; set; }  
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/InterestBindingModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/InterestBindingModel.cs
new file mode 100644
index 0000000..a7f08d6
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/InterestBindingModel.cs
@@ -0,0 +1,18 @@
+using SchoolAgainStudyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BindingModel
+{
+    public class InterestBindingModel : IInterest
+    {
+        public string Title { get; set; } = string.Empty;
+
+        public string Description { get; set; } = string.Empty;
+
+        public int Id { get; set; } 
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/ProductBindingModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/ProductBindingModel.cs
new file mode 100644
index 0000000..8c4ee18
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/ProductBindingModel.cs
@@ -0,0 +1,24 @@
+using SchoolAgainStudyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BindingModel
+{
+    public class ProductBindingModel : IProduct
+    {
+        public string Title { get; set; } = string.Empty;
+
+        public string Description { get; set; } = string.Empty;
+
+        public DateTime DateCreate { get; set; }
+
+        public int StudentId { get; set; }
+
+        public Dictionary<int, IInterest> ProductInterests { get; set; } = new();
+
+        public int Id { get; set; } 
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/StudentBindingModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/StudentBindingModel.cs
new file mode 100644
index 0000000..d77ba13
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BindingModel/StudentBindingModel.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SchoolAgainStudyDataModels.Models;
+namespace SchoolAgainStudyContracts.BindingModel
+{
+    public class StudentBindingModel : IStudent
+    {
+        public string Name { get; set; } = string.Empty;
+
+        public int Class { get; set; } 
+
+        public string Email { get; set; } = string.Empty;
+
+        public string Login { get; set; } = string.Empty;
+
+        public string Password { get; set; } = string.Empty;
+
+        public Dictionary<int, IInterest> StudentInterests { get; set; } = new() ;
+
+        public int Id { get; set; } 
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IDiyLogic.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IDiyLogic.cs
new file mode 100644
index 0000000..a94a29a
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IDiyLogic.cs
@@ -0,0 +1,20 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BusinessLogicContracts
+{
+    public interface IDiyLogic
+    {
+        List<DiyViewModel>? ReadList(DiySearchModel? model);
+        DiyViewModel? ReadElement(DiySearchModel model);
+        bool Create(DiyBindingModel model);
+        bool Update(DiyBindingModel model);
+        bool Delete(DiyBindingModel model);
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IInterestLogic.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IInterestLogic.cs
new file mode 100644
index 0000000..020d464
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IInterestLogic.cs
@@ -0,0 +1,20 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BusinessLogicContracts
+{
+    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/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IProductLogic.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IProductLogic.cs
new file mode 100644
index 0000000..8cef927
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IProductLogic.cs
@@ -0,0 +1,20 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BusinessLogicContracts
+{
+    public interface IProductLogic
+    {
+        List<ProductViewModel>? ReadList(ProductSearchModel? model);
+        ProductViewModel? ReadElement(ProductSearchModel model);
+        bool Create(ProductBindingModel model);
+        bool Update(ProductBindingModel model);
+        bool Delete(ProductBindingModel model);
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IStudentLogic.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IStudentLogic.cs
new file mode 100644
index 0000000..6eaae28
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/BusinessLogicContracts/IStudentLogic.cs
@@ -0,0 +1,20 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.BusinessLogicContracts
+{
+    public interface IStudentLogic
+    {
+        List<StudentViewModel>? ReadList(StudentSearchModel? model);
+        StudentViewModel? ReadElement(StudentSearchModel model);
+        bool Create(StudentBindingModel model);
+        bool Update(StudentBindingModel model);
+        bool Delete(StudentBindingModel model);
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/DiySearchModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/DiySearchModel.cs
new file mode 100644
index 0000000..eec05b7
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/DiySearchModel.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.SearchModel
+{
+    public class DiySearchModel
+    {
+        public int? Id { get; set; }
+        public string? Title { get; set; }
+        public DateTime? DateFrom { get; set; }
+
+        public DateTime? DateTo { get; set; }
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/InterestSearchModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/InterestSearchModel.cs
new file mode 100644
index 0000000..bcefc9a
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/InterestSearchModel.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.SearchModel
+{
+    public class InterestSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Title { get; set; }
+
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/ProductSearchModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/ProductSearchModel.cs
new file mode 100644
index 0000000..dc92f98
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/ProductSearchModel.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.SearchModel
+{
+    public class ProductSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Title { get; set; }
+        public DateTime? DateFrom { get; set; }
+
+        public DateTime? DateTo { get; set; }
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/StudentSearchModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/StudentSearchModel.cs
new file mode 100644
index 0000000..4c2c44f
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/SearchModel/StudentSearchModel.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.SearchModel
+{
+    public class StudentSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Login { get; set; }
+        public string? Name { get; set; }
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IDiyStorage.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IDiyStorage.cs
new file mode 100644
index 0000000..8123f2e
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IDiyStorage.cs
@@ -0,0 +1,21 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.StorageContracts
+{
+    public interface IDiyStorage
+    {
+        List<DiyViewModel> GetFullList();
+        List<DiyViewModel> GetFilteredList(DiySearchModel model);
+        DiyViewModel? GetElement(DiySearchModel model);
+        DiyViewModel? Insert(DiyBindingModel model);
+        DiyViewModel? Update(DiyBindingModel model);
+        DiyViewModel? Delete(DiyBindingModel model);
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IInterestStorage.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IInterestStorage.cs
new file mode 100644
index 0000000..c705b32
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IInterestStorage.cs
@@ -0,0 +1,21 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.StorageContracts
+{
+    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/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IProductStorage.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IProductStorage.cs
new file mode 100644
index 0000000..ec1365f
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IProductStorage.cs
@@ -0,0 +1,21 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.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/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IStudentStorage.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IStudentStorage.cs
new file mode 100644
index 0000000..232e71f
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/StorageContracts/IStudentStorage.cs
@@ -0,0 +1,21 @@
+using SchoolAgainStudyContracts.BindingModel;
+using SchoolAgainStudyContracts.SearchModel;
+using SchoolAgainStudyContracts.ViewModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.StorageContracts
+{
+    public interface IStudentStorage
+    {
+        List<StudentViewModel> GetFullList();
+        List<StudentViewModel> GetFilteredList(StudentSearchModel model);
+        StudentViewModel? GetElement(StudentSearchModel model);
+        StudentViewModel? Insert(StudentBindingModel model);
+        StudentViewModel? Update(StudentBindingModel model);
+        StudentViewModel? Delete(StudentBindingModel model);
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/DiyViewModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/DiyViewModel.cs
new file mode 100644
index 0000000..a21c3cd
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/DiyViewModel.cs
@@ -0,0 +1,30 @@
+using SchoolAgainStudyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.ViewModel
+{
+    public class DiyViewModel : IDiy
+    {
+        [DisplayName("Название")]
+        public string Title { get; set; } = string.Empty;
+        [DisplayName("Описание")]
+        public string Description { get; set; } = string.Empty;
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; } = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
+
+        public int TaskId { get; set; }
+        [DisplayName("Задание")]
+        public string TaskName { get; set; } = string.Empty;
+
+        public int StudentId { get; set; }  
+
+        public Dictionary<int, IInterest> DiyInterests { get; set; } = new();
+        [DisplayName("Номер")]
+        public int Id { get; set; }  
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/InterestViewModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/InterestViewModel.cs
new file mode 100644
index 0000000..8f07702
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/InterestViewModel.cs
@@ -0,0 +1,20 @@
+using SchoolAgainStudyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.ViewModel
+{
+    public class InterestViewModel : IInterest
+    {
+        [DisplayName("Название")]
+        public string Title { get; set; } = string.Empty;
+        [DisplayName("Описание")]
+        public string Description { get; set; } = string.Empty;
+        [DisplayName("Номер")]
+        public int Id { get; set; } 
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ProductViewModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ProductViewModel.cs
new file mode 100644
index 0000000..02bd9c0
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ProductViewModel.cs
@@ -0,0 +1,26 @@
+using SchoolAgainStudyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.ViewModel
+{
+    public class ProductViewModel : IProduct
+    {
+        [DisplayName("Название")]
+        public string Title { get; set; } = string.Empty;
+        [DisplayName("Описание")]
+        public string Description { get; set; } = string.Empty;
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; } 
+
+        public int StudentId { get; set; }
+
+        public Dictionary<int, IInterest> ProductInterests { get; set; } = new();
+        [DisplayName("Номер")]
+        public int Id { get; set; } 
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ReportInterestLessonViewModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ReportInterestLessonViewModel.cs
new file mode 100644
index 0000000..0bb5840
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ReportInterestLessonViewModel.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.ViewModel
+{
+    public class ReportInterestLessonViewModel
+    {
+        public string Title { get; set; } = string.Empty;
+        public List<string> Lessons { get; set; } = new();
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ReportInterestViewModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ReportInterestViewModel.cs
new file mode 100644
index 0000000..f8dce0f
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/ReportInterestViewModel.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SchoolAgainStudyContracts.ViewModel
+{
+    public class ReportInterestViewModel
+    {
+        public int Id { get; set; }
+        public string InterestTitle { get; set; } = string.Empty;
+        public string InterestDesc { get; set; } = string.Empty;
+        public string WorkType { get; set; } = string.Empty;
+        public string WorkTitle { get; set; } = string.Empty;
+        public string WorkDesc { get; set; } = string.Empty;
+        public DateTime DateCreate { get; set; } 
+    }
+}
diff --git a/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/StudentViewModel.cs b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/StudentViewModel.cs
new file mode 100644
index 0000000..18763a5
--- /dev/null
+++ b/SchoolAgainStudy/SchoolAgainStudyContracts/ViewModel/StudentViewModel.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SchoolAgainStudyDataModels.Models;
+namespace SchoolAgainStudyContracts.ViewModel
+{
+    public class StudentViewModel : IStudent
+    {
+        [DisplayName("ФИО")]
+        public string Name { get; set; } = string.Empty;
+        [DisplayName("Класс")]
+        public int Class { get; set; }
+        [DisplayName("Почта")]
+        public string Email { get; set; } = string.Empty;
+        [DisplayName("Логин")]
+        public string Login { get; set; } = string.Empty;
+        [DisplayName("Пароль")]
+        public string Password { get; set; } = string.Empty;
+
+        public Dictionary<int, IInterest> StudentInterests { get; set; } = new() ;
+        [DisplayName("Номер")]
+        public int Id { get; set; } 
+    }
+}