diff --git a/University/DataModels/IId.cs b/University/DataModels/IId.cs
new file mode 100644
index 0000000..4f33abd
--- /dev/null
+++ b/University/DataModels/IId.cs
@@ -0,0 +1,7 @@
+namespace University.DataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}
diff --git a/University/DataModels/IPerson.cs b/University/DataModels/IPerson.cs
new file mode 100644
index 0000000..0cd8f95
--- /dev/null
+++ b/University/DataModels/IPerson.cs
@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace University.DataModels
+{
+    public interface IPerson : IId
+    {
+        public string FirstName { get; }
+
+        public string LastName { get; }
+
+        public string MiddleName { get; }
+
+        public string PhoneNumber { get; }
+
+        public string Email { get; }
+    }
+}
diff --git a/University/DataModels/Models/IDiscipline.cs b/University/DataModels/Models/IDiscipline.cs
new file mode 100644
index 0000000..20517ca
--- /dev/null
+++ b/University/DataModels/Models/IDiscipline.cs
@@ -0,0 +1,9 @@
+namespace University.DataModels.Models
+{
+    public interface IDiscipline : IId
+    {
+        int TeacherId { get; }
+        string Name { get; set; }
+        string Description { get; set; }
+    }
+}
diff --git a/University/DataModels/Models/IStatement.cs b/University/DataModels/Models/IStatement.cs
new file mode 100644
index 0000000..5ef64f8
--- /dev/null
+++ b/University/DataModels/Models/IStatement.cs
@@ -0,0 +1,9 @@
+namespace University.DataModels.Models
+{
+    public interface IStatement : IId
+    {
+        int TeacherId { get; }
+        string Name { get; }
+        DateTime Date { get; }
+    }
+}
diff --git a/University/DataModels/Models/IStorekeeper.cs b/University/DataModels/Models/IStorekeeper.cs
new file mode 100644
index 0000000..428510f
--- /dev/null
+++ b/University/DataModels/Models/IStorekeeper.cs
@@ -0,0 +1,6 @@
+namespace University.DataModels.Models
+{
+    public interface IStorekeeper : IPerson
+    {
+    }
+}
diff --git a/University/DataModels/Models/IStudent.cs b/University/DataModels/Models/IStudent.cs
new file mode 100644
index 0000000..a589534
--- /dev/null
+++ b/University/DataModels/Models/IStudent.cs
@@ -0,0 +1,9 @@
+namespace University.DataModels.Models
+{
+    public interface IStudent : IId
+    {
+        string Name { get; }
+        public string PhoneNumber { get; }
+        Dictionary<int, (IDiscipline, int)> StudentDisciplines { get; }
+    }
+}
diff --git a/University/DataModels/Models/ITeacher.cs b/University/DataModels/Models/ITeacher.cs
new file mode 100644
index 0000000..50c59b0
--- /dev/null
+++ b/University/DataModels/Models/ITeacher.cs
@@ -0,0 +1,10 @@
+namespace University.DataModels.Models
+{
+    public interface ITeacher : IId
+    {
+        int StorekeeperId { get; }
+        string Name { get; }
+        string AcademicDegree { get; }
+        string Position { get; }
+    }
+}
diff --git a/University/Models/IStatement.cs b/University/Models/IStatement.cs
deleted file mode 100644
index bd4ccad..0000000
--- a/University/Models/IStatement.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace University.Models
-{
-    public interface IStatement
-    {
-    }
-}
diff --git a/University/Models/ISubject.cs b/University/Models/ISubject.cs
deleted file mode 100644
index a898013..0000000
--- a/University/Models/ISubject.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Models
-{
-    public interface ISubject
-    {
-
-    }
-}
diff --git a/University/Models/ITeacher.cs b/University/Models/ITeacher.cs
deleted file mode 100644
index 5b56a5a..0000000
--- a/University/Models/ITeacher.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace University.Models
-{
-    public interface ITeacher
-    {
-    }
-}
diff --git a/University/Models/Models.csproj b/University/Models/Models.csproj
deleted file mode 100644
index fa71b7a..0000000
--- a/University/Models/Models.csproj
+++ /dev/null
@@ -1,9 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-</Project>
diff --git a/University/Models/Models.sln b/University/Models/Models.sln
deleted file mode 100644
index 2bb3ab0..0000000
--- a/University/Models/Models.sln
+++ /dev/null
@@ -1,25 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.9.34723.18
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Models", "Models.csproj", "{FB786E71-63DD-4C94-971F-AC23B8541F4D}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{FB786E71-63DD-4C94-971F-AC23B8541F4D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{FB786E71-63DD-4C94-971F-AC23B8541F4D}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{FB786E71-63DD-4C94-971F-AC23B8541F4D}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{FB786E71-63DD-4C94-971F-AC23B8541F4D}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {1AA47FF1-A976-4E6E-B470-644BC0E19E2B}
-	EndGlobalSection
-EndGlobal