diff --git a/API/app/infrastructure/database/models/answer_files.py b/API/app/infrastructure/database/models/answer_files.py
new file mode 100644
index 0000000..51c6d1e
--- /dev/null
+++ b/API/app/infrastructure/database/models/answer_files.py
@@ -0,0 +1,16 @@
+from sqlalchemy import Column, Integer, String, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.infrastructure.database.models import Base
+
+
+class AnswerFile(Base):
+    __tablename__ = 'answer_files'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    file_path = Column(String, nullable=False)
+    file_title = Column(String, nullable=False)
+
+    answer_id = Column(Integer, ForeignKey('task_answers.id'), nullable=False)
+
+    answer = relationship('TaskAnswer', back_populates='files')
diff --git a/API/app/infrastructure/database/models/answer_options.py b/API/app/infrastructure/database/models/answer_options.py
new file mode 100644
index 0000000..1aab522
--- /dev/null
+++ b/API/app/infrastructure/database/models/answer_options.py
@@ -0,0 +1,18 @@
+from sqlalchemy import Column, Integer, String, Boolean, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.infrastructure.database.models import Base
+
+
+class AnswerOption(Base):
+    __tablename__ = 'answer_options'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    answer = Column(String, nullable=False)
+    is_current = Column(Boolean, nullable=False, default=False)
+
+    task_id = Column(Integer, ForeignKey('step_tasks.id'), nullable=False)
+
+    task = relationship('StepTask', back_populates='answer_options')
+
+    test_answers = relationship('TestAnswer', back_populates='answer')
diff --git a/API/app/infrastructure/database/models/step_tasks.py b/API/app/infrastructure/database/models/step_tasks.py
index 6f773dc..4821c4f 100644
--- a/API/app/infrastructure/database/models/step_tasks.py
+++ b/API/app/infrastructure/database/models/step_tasks.py
@@ -17,3 +17,5 @@ class StepTask(Base):
     type = relationship('TaskType', back_populates='tasks')
 
     files = relationship('TaskFile', back_populates='task')
+    answer_options = relationship('AnswerOption', back_populates='task')
+    answers = relationship('TaskAnswer', back_populates='task')
diff --git a/API/app/infrastructure/database/models/task_answers.py b/API/app/infrastructure/database/models/task_answers.py
new file mode 100644
index 0000000..4f7bcc2
--- /dev/null
+++ b/API/app/infrastructure/database/models/task_answers.py
@@ -0,0 +1,23 @@
+from sqlalchemy import Column, Integer, ForeignKey, DateTime, String, Boolean
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+
+from app.infrastructure.database.models import Base
+
+
+class TaskAnswer(Base):
+    __tablename__ = 'task_answers'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    answer_date = Column(DateTime, nullable=False, default=func.utcnow)
+    text = Column(String, nullable=False)
+    is_current = Column(Boolean, default=None)
+    comment = Column(String)
+
+    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
+    task_id = Column(Integer, ForeignKey('step_tasks.id'), nullable=False)
+
+    user = relationship('User', back_populates='task_answers')
+    task = relationship('StepTask', back_populates='answers')
+
+    files = relationship('AnswerFile', back_populates='answer')
diff --git a/API/app/infrastructure/database/models/test_answers.py b/API/app/infrastructure/database/models/test_answers.py
new file mode 100644
index 0000000..025e723
--- /dev/null
+++ b/API/app/infrastructure/database/models/test_answers.py
@@ -0,0 +1,18 @@
+from sqlalchemy import Column, Integer, ForeignKey, DateTime
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+
+from app.infrastructure.database.models import Base
+
+
+class TestAnswer(Base):
+    __tablename__ = 'test_answers'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    answer_date = Column(DateTime, nullable=False, default=func.utcnow)
+
+    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
+    answer_id = Column(Integer, ForeignKey('answer_options.id'), nullable=False)
+
+    user = relationship('User', back_populates='test_answers')
+    answer = relationship('AnswerOption', back_populates='test_answers')
diff --git a/API/app/infrastructure/database/models/users.py b/API/app/infrastructure/database/models/users.py
index 4310f90..5f7dc9d 100644
--- a/API/app/infrastructure/database/models/users.py
+++ b/API/app/infrastructure/database/models/users.py
@@ -33,9 +33,11 @@ class User(Base):
     role = relationship('Role', back_populates='users')
 
     appeals = relationship('Appeal', back_populates='user')
-    owned_courses = relationship('Course', back_populates='owned_courses')
+    owned_courses = relationship('Course', back_populates='owner_user')
     enrolled_courses = relationship('CourseStudent', back_populates='user')
     notifications = relationship('Notification', back_populates='user')
+    test_answers = relationship('TestAnswer', back_populates='user')
+    task_answers = relationship('TaskAnswer', back_populates='user')
 
     def check_password(self, password):
         return check_password_hash(self.password, password)