diff --git a/MultipleChoiceTrainer/Models/DataModels/Answer.cs b/MultipleChoiceTrainer/Models/DataModels/Answer.cs
new file mode 100644
index 0000000..2db0f55
--- /dev/null
+++ b/MultipleChoiceTrainer/Models/DataModels/Answer.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MultipleChoiceTrainer.Models.DataModels
+{
+    public class Answer
+    {
+        public int Id { get; set; }
+        
+        public DateTime Date { get; set; }
+
+        public Question Question { get; set; }
+        public int QuestionId { get; set; }
+
+        public bool Successfull { get; set; }
+    }
+}
diff --git a/MultipleChoiceTrainer/Models/DataModels/Category.cs b/MultipleChoiceTrainer/Models/DataModels/Category.cs
new file mode 100644
index 0000000..31f2553
--- /dev/null
+++ b/MultipleChoiceTrainer/Models/DataModels/Category.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MultipleChoiceTrainer.Models.DataModels
+{
+    public class Category
+    {
+        public int Id { get; set;  }
+        public string Name { get; set; }
+        public string Description { get; set; }
+
+        public ICollection<Section> Sections { get; set; } = new HashSet<Section>();
+    }
+}
diff --git a/MultipleChoiceTrainer/Models/DataModels/Choice.cs b/MultipleChoiceTrainer/Models/DataModels/Choice.cs
new file mode 100644
index 0000000..c62d095
--- /dev/null
+++ b/MultipleChoiceTrainer/Models/DataModels/Choice.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MultipleChoiceTrainer.Models.DataModels
+{
+    public class Choice
+    {
+        public int Id { get; set; }
+        public Question Question { get; set; }
+        public int QuestionId { get; set; }
+
+        public string Text { get; set; }
+        public bool IsTrue { get; set; }
+    }
+}
diff --git a/MultipleChoiceTrainer/Models/DataModels/Question.cs b/MultipleChoiceTrainer/Models/DataModels/Question.cs
new file mode 100644
index 0000000..96dd5c8
--- /dev/null
+++ b/MultipleChoiceTrainer/Models/DataModels/Question.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MultipleChoiceTrainer.Models.DataModels
+{
+    public class Question
+    {
+        public int Id { get; set; }
+        public string Text { get; set; }
+
+        public Section Section { get; set; }
+        public int SectionId { get; set; }
+
+        public ICollection<Choice> Choices { get; set; } = new HashSet<Choice>();
+
+        public ICollection<Answer> Answers { get; set; } = new HashSet<Answer>();
+    }
+}
diff --git a/MultipleChoiceTrainer/Models/DataModels/Section.cs b/MultipleChoiceTrainer/Models/DataModels/Section.cs
new file mode 100644
index 0000000..4e838ae
--- /dev/null
+++ b/MultipleChoiceTrainer/Models/DataModels/Section.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MultipleChoiceTrainer.Models.DataModels
+{
+    public class Section
+    { 
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public string Description { get; set; }
+
+        public Category Category { get; set; }
+        public int CategoryId { get; set; }
+
+        public ICollection<Question> Questions { get; set; } = new HashSet<Question>();
+    }
+}