diff --git a/Forum/ForumContracts/ForumContracts.csproj b/Forum/ForumContracts/ForumContracts.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/Forum/ForumContracts/ForumContracts.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/Forum/ForumDataModels/ICategoryModel.cs b/Forum/ForumDataModels/ICategoryModel.cs
new file mode 100644
index 0000000..64a9363
--- /dev/null
+++ b/Forum/ForumDataModels/ICategoryModel.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ForumDataModels
+{
+    public interface ICategoryModel : IId
+    {
+        string Name { get; }
+    }
+}
diff --git a/Forum/ForumDataModels/IId.cs b/Forum/ForumDataModels/IId.cs
new file mode 100644
index 0000000..34c0a00
--- /dev/null
+++ b/Forum/ForumDataModels/IId.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ForumDataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}
diff --git a/Forum/ForumDataModels/IMessageModel.cs b/Forum/ForumDataModels/IMessageModel.cs
new file mode 100644
index 0000000..5c4046e
--- /dev/null
+++ b/Forum/ForumDataModels/IMessageModel.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ForumDataModels
+{
+    public interface IMessageModel : IId
+    {
+        string Text { get; }
+        DateTime Date { get; }
+    }
+}
diff --git a/Forum/ForumDataModels/IRoleModel.cs b/Forum/ForumDataModels/IRoleModel.cs
new file mode 100644
index 0000000..43ea585
--- /dev/null
+++ b/Forum/ForumDataModels/IRoleModel.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ForumDataModels
+{
+    public interface IRoleModel : IId
+    {
+        string Name { get; }
+    }
+}
diff --git a/Forum/ForumDataModels/ITopicModel.cs b/Forum/ForumDataModels/ITopicModel.cs
new file mode 100644
index 0000000..ab60620
--- /dev/null
+++ b/Forum/ForumDataModels/ITopicModel.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ForumDataModels
+{
+    public interface ITopicModel : IId
+    {
+        string Name { get; }
+    }
+}
diff --git a/Forum/ForumDataModels/IUserModel.cs b/Forum/ForumDataModels/IUserModel.cs
new file mode 100644
index 0000000..f79625b
--- /dev/null
+++ b/Forum/ForumDataModels/IUserModel.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ForumDataModels
+{
+    public interface IUserModel : IId
+    {
+        string Username { get; }
+        string Email { get; }
+        string Password { get; }
+        DateTime RegistrationDate { get; }
+    }
+}