diff --git a/app/__init__.py b/app/__init__.py
index 66c4caf..eed71a8 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -21,7 +21,7 @@ def create_app(config_name):
     root = CONFIG[config_name].APPLICATION_ROOT
 
     # flask migrate doesn't recognize the tables without this import
-    from app.models import Application, Genre, ApplicationType
+    from app.models import Application, Genre, ApplicationType, Session, Questionnaire
 
     # Set up extensions
     db.init_app(app)
@@ -33,4 +33,10 @@ def create_app(config_name):
     from app.routes.v1 import application as application_blueprint
     app.register_blueprint(application_blueprint, url_prefix=root + '/application')
 
+    from app.routes.v1 import session as session_blueprint
+    app.register_blueprint(session_blueprint, url_prefix=root + '/session')
+
+    from app.routes.v1 import questionnaire as questionnaire_blueprint
+    app.register_blueprint(questionnaire_blueprint, url_prefix=root + '/questionnaire')
+
     return app
diff --git a/app/models/__init__.py b/app/models/__init__.py
index bdfa087..2316650 100644
--- a/app/models/__init__.py
+++ b/app/models/__init__.py
@@ -6,3 +6,5 @@
 from .application import *  # noqa
 from .application_type import *  # noqa
 from .genre import *  # noqa
+from .session import *  # noqa
+from .questionnaire import *  # noqa
diff --git a/app/models/application.py b/app/models/application.py
index 876b4c5..50b2754 100644
--- a/app/models/application.py
+++ b/app/models/application.py
@@ -1,4 +1,6 @@
 from marshmallow import fields, validate
+from .application_type import ApplicationTypeSchema
+from .genre import GenreSchema
 from .. import db, ma
 
 
@@ -13,9 +15,18 @@ class Application(db.Model):
     description = db.Column(db.String(250), nullable=False)
     creation_date = db.Column(db.TIMESTAMP, server_default=db.func.current_timestamp(), nullable=False)
     genre_id = db.Column(db.Integer, db.ForeignKey('genre.id', use_alter=True, name='fk_genre_id'), nullable=False)
+    sessions = db.relationship('Session', backref='app', lazy='dynamic')
+
+    def __init__(self, name, identifier, developer, type, description, genre):
+        self.name = name
+        self.identifier = identifier
+        self.developer = developer
+        self.type = type
+        self.description = description
+        self.genre = genre
 
     def __repr__(self):
-        return self.name
+        return '<Application %r>' % self.id
 
 
 class ApplicationSchema(ma.Schema):
@@ -23,7 +34,7 @@ class ApplicationSchema(ma.Schema):
     name = fields.String(required=True, validate=validate.Length(1, 100))
     identifier = fields.String()
     developer = fields.String(required=True, validate=validate.Length(1, 100))
-    type = fields.String(required=True)
+    type = fields.Nested(ApplicationTypeSchema, dump_only=True)
     description = fields.String(required=True, validate=validate.Length(1, 250))
     creation_date = fields.DateTime()
-    genre = fields.String(required=True)
+    genre = fields.Nested(GenreSchema, dump_only=True)
diff --git a/app/models/application_type.py b/app/models/application_type.py
index a161911..c93015a 100644
--- a/app/models/application_type.py
+++ b/app/models/application_type.py
@@ -15,6 +15,11 @@ class ApplicationType(db.Model):
     display_name_full = db.Column(db.String(250), nullable=False)
     applications = db.relationship('Application', backref='type', lazy='dynamic')
 
+    def __init__(self, name, display_name, display_name_full):
+        self.name = name
+        self.display_name = display_name
+        self.display_name_full = display_name_full
+
     @classmethod
     def seed(cls):
         if cls.is_table_empty(cls):
@@ -41,7 +46,7 @@ def is_table_empty(self):
         return False
 
     def __repr__(self):
-        return self.display_name_full
+        return '<ApplicationType %r>' % self.id
 
 
 class ApplicationTypeSchema(ma.Schema):
diff --git a/app/models/genre.py b/app/models/genre.py
index f32d315..89a0ecf 100644
--- a/app/models/genre.py
+++ b/app/models/genre.py
@@ -14,6 +14,10 @@ class Genre(db.Model):
     display_name = db.Column(db.String(250), nullable=False)
     applications = db.relationship('Application', backref='genre', lazy='dynamic')
 
+    def __init__(self, name, display_name):
+        self.name = name
+        self.display_name = display_name
+
     @classmethod
     def seed(cls):
         if cls.is_table_empty(cls):
@@ -40,7 +44,7 @@ def is_table_empty(self):
         return False
 
     def __repr__(self):
-        return self.display_name
+        return '<Genre %r>' % self.id
 
 
 class GenreSchema(ma.Schema):
diff --git a/app/models/questionnaire.py b/app/models/questionnaire.py
new file mode 100644
index 0000000..3ae3522
--- /dev/null
+++ b/app/models/questionnaire.py
@@ -0,0 +1,32 @@
+from marshmallow import fields, validate
+from .. import db, ma
+
+
+class Questionnaire(db.Model):
+    __tablename__ = 'questionnaire'
+
+    id = db.Column(db.Integer, primary_key=True)
+    pre = db.Column(db.JSON, nullable=False)
+    post = db.Column(db.JSON, nullable=False, default={})
+    creation_date = db.Column(db.TIMESTAMP, server_default=db.func.current_timestamp(), nullable=False)
+    session = db.relationship("Session", uselist=False, backref="questionnaire")
+
+    def __init__(self, pre, post):
+        self.pre = pre
+        self.post = post
+
+    def __repr__(self):
+        return '<Questionnaire %r>' % self.id
+
+
+class SymptomSchema(ma.Schema):
+    name = fields.String(required=False)
+    display_name = fields.String(required=False)
+    score = fields.String(required=False)
+
+
+class QuestionnaireSchema(ma.Schema):
+    id = fields.Integer(dump_only=True)
+    pre = fields.List(fields.Nested(SymptomSchema), dump_only=True)
+    post = fields.List(fields.Nested(SymptomSchema), dump_only=True)
+    creation_date = fields.DateTime()
diff --git a/app/models/session.py b/app/models/session.py
new file mode 100644
index 0000000..d71089b
--- /dev/null
+++ b/app/models/session.py
@@ -0,0 +1,37 @@
+from marshmallow import fields, validate
+from .. import db, ma
+from .application import ApplicationSchema
+from .questionnaire import QuestionnaireSchema
+
+
+class Session(db.Model):
+    __tablename__ = 'session'
+
+    id = db.Column(db.Integer, primary_key=True)
+    app_id = db.Column(db.Integer, db.ForeignKey('application.id', use_alter=True, name='fk_app_id'), nullable=False)
+    creation_date = db.Column(db.TIMESTAMP, server_default=db.func.current_timestamp(), nullable=False)
+    expected_emotions = db.Column(db.JSON, nullable=False)
+    questionnaire_id = db.Column(db.Integer, db.ForeignKey('questionnaire.id', use_alter=True, name='fk_questionnaire_id'), nullable=False)
+    cssi_score = db.Column(db.Float, nullable=False, default=0)
+    latency_scores = db.Column(db.JSON, nullable=False, default={})
+    total_latency_score = db.Column(db.Float, nullable=False, default=0)
+    sentiment_scores = db.Column(db.JSON, nullable=False, default={})
+    total_sentiment_score = db.Column(db.Float, nullable=False, default=0)
+    questionnaire_scores = db.Column(db.JSON, nullable=True, default={})
+    total_questionnaire_score = db.Column(db.Float, nullable=False, default=0)
+
+    def __init__(self, app, expected_emotions, questionnaire):
+        self.app = app
+        self.expected_emotions = expected_emotions
+        self.questionnaire = questionnaire
+
+    def __repr__(self):
+        return '<Session %r>' % self.id
+
+
+class SessionSchema(ma.Schema):
+    id = fields.Integer(dump_only=True)
+    creation_date = fields.DateTime()
+    expected_emotions = fields.List(fields.String(), dump_only=True)
+    app = fields.Nested(ApplicationSchema, dump_only=True)
+    questionnaire = fields.Nested(QuestionnaireSchema, dump_only=True)
diff --git a/app/routes/v1/__init__.py b/app/routes/v1/__init__.py
index 0d00b41..ebfd221 100644
--- a/app/routes/v1/__init__.py
+++ b/app/routes/v1/__init__.py
@@ -1,2 +1,4 @@
 from app.routes.v1.application import application  # noqa
 from app.routes.v1.main import main  # noqa
+from app.routes.v1.session import session  # noqa
+from app.routes.v1.questionnaire import questionnaire  # noqa
diff --git a/app/routes/v1/application.py b/app/routes/v1/application.py
index 2cfeec4..f1f60dc 100644
--- a/app/routes/v1/application.py
+++ b/app/routes/v1/application.py
@@ -45,6 +45,7 @@ def get_application(id):
 @application.route('/', methods=['POST'])
 def create_application():
     """Create a new Application"""
+
     json_data = request.get_json(force=True)
 
     if not json_data:
@@ -55,14 +56,13 @@ def create_application():
     if errors:
         return jsonify({'status': 'error', 'message': 'Incorrect format of data provided.', 'data': errors}), 422
 
-    name = data['name']
+    name = request.json['name']
     identifier = str(uuid.uuid4().hex)
-    developer = data['developer']
-    type = ApplicationType.query.filter_by(name=data['type']).first()
-    description = data['description']
-    genre = Genre.query.filter_by(name=data['genre']).first()
+    developer = request.json['developer']
+    type = ApplicationType.query.filter_by(id=request.json['type']).first()
+    description = request.json['description']
+    genre = Genre.query.filter_by(id=request.json['genre']).first()
 
-    print(identifier)
     # validate application type
     if not type:
         return {'status': 'error', 'message': 'Invalid Application Type'}, 400
diff --git a/app/routes/v1/questionnaire.py b/app/routes/v1/questionnaire.py
new file mode 100644
index 0000000..4acb097
--- /dev/null
+++ b/app/routes/v1/questionnaire.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# (c) Copyright 2019 Brion Mario.
+# (c) This file is part of the CSSI REST API and is made available under MIT license.
+# (c) For more information, see https://github.com/brionmario/cssi-api/blob/master/LICENSE.txt
+# (c) Please forward any queries to the given email address. email: brion@apareciumlabs.com
+
+"""Application routes module
+
+This modules contains all the different routes to interact with applications.
+
+Authors:
+    Brion Mario
+
+"""
+
+import uuid
+from flask import Blueprint, jsonify, request
+from app.models import Questionnaire, ApplicationType, QuestionnaireSchema, Genre
+from app import db
+
+questionnaire = Blueprint('questionnaire', __name__)
+
+questionnaire_schema = QuestionnaireSchema(strict=True)
+questionnaires_schema = QuestionnaireSchema(many=True, strict=True)
+
+
+@questionnaire.route('/', methods=['GET'])
+def get_questionnaire_list():
+    """Get a list of all the Questionnaire"""
+    questionnaires = Questionnaire.query.all()
+    result = questionnaires_schema.dump(questionnaires).data
+    return jsonify({'status': 'success', 'message': None, 'data': result}), 200
+
+
+@questionnaire.route('/<int:id>', methods=['GET'])
+def get_questionnaire(id):
+    """Get questionnaire when an id is passed in"""
+    questionnaire = Questionnaire.query.get(id)
+    result = questionnaire_schema.dump(questionnaire).data
+    return jsonify({'status': 'success', 'message': None, 'data': result}), 200
+
+
+@questionnaire.route('/', methods=['POST'])
+def create_questionnaire():
+    """Create a new Questionnaire"""
+    pre = request.json['pre']
+    post = request.json['post']
+
+    new_questionnaire = Questionnaire(pre=pre, post=post)
+
+    db.session.add(new_questionnaire)
+    db.session.commit()
+
+    result = questionnaire_schema.dump(new_questionnaire).data
+
+    return jsonify({'status': 'success', 'message': 'Created new questionnaire', 'data': result}), 201
diff --git a/app/routes/v1/session.py b/app/routes/v1/session.py
new file mode 100644
index 0000000..0930393
--- /dev/null
+++ b/app/routes/v1/session.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# (c) Copyright 2019 Brion Mario.
+# (c) This file is part of the CSSI REST API and is made available under MIT license.
+# (c) For more information, see https://github.com/brionmario/cssi-api/blob/master/LICENSE.txt
+# (c) Please forward any queries to the given email address. email: brion@apareciumlabs.com
+
+"""Session routes module
+
+This modules contains all the different routes to interact with Sessions.
+
+Authors:
+    Brion Mario
+
+"""
+
+from flask import Blueprint, jsonify, request
+from app.models import Session, SessionSchema, Application, Questionnaire
+from app import db
+
+session = Blueprint('session', __name__)
+
+session_schema = SessionSchema(strict=True)
+sessions_schema = SessionSchema(many=True, strict=True)
+
+
+@session.route('/', methods=['GET'])
+def get_sessions_list():
+    """Get a list of all the sessions"""
+    sessions = Session.query.all()
+    result = sessions_schema.dump(sessions).data
+    return jsonify({'status': 'success', 'message': None, 'data': result}), 200
+
+
+@session.route('/<int:id>', methods=['GET'])
+def get_session(id):
+    """Get info on a session when an id is passed in"""
+    session = Session.query.get(id)
+    result = sessions_schema.dump(session).data
+    return jsonify({'status': 'success', 'message': None, 'data': result}), 200
+
+
+@session.route('/', methods=['POST'])
+def create_session():
+    """Create a new Session"""
+
+    app = Application.query.filter_by(id=request.json['app']).first()
+    questionnaire = Questionnaire.query.filter_by(id=request.json['questionnaire_id']).first()
+    expected_emotions = request.json['expected_emotions']
+
+    print(questionnaire)
+
+    # validate application type
+    if not app:
+        return {'status': 'error', 'message': 'Invalid application.'}, 400
+
+    new_session = Session(app=app, expected_emotions=expected_emotions, questionnaire=questionnaire)
+
+    db.session.add(new_session)
+    db.session.commit()
+
+    result = session_schema.dump(new_session).data
+
+    return jsonify({'status': 'success', 'message': 'Created new session for application with id of {}.'.format(request.json['app']), 'data': result}), 201
diff --git a/migrations/versions/89ee48680e79_.py b/migrations/versions/89ee48680e79_.py
new file mode 100644
index 0000000..4f39656
--- /dev/null
+++ b/migrations/versions/89ee48680e79_.py
@@ -0,0 +1,42 @@
+"""empty message
+
+Revision ID: 89ee48680e79
+Revises: cb018c771a53
+Create Date: 2019-04-16 04:22:10.614121
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision = '89ee48680e79'
+down_revision = 'cb018c771a53'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_foreign_key('fk_type_id', 'application', 'application_type', ['type_id'], ['id'], use_alter=True)
+    op.create_foreign_key('fk_genre_id', 'application', 'genre', ['genre_id'], ['id'], use_alter=True)
+    op.alter_column('questionnaire', 'post',
+               existing_type=mysql.TEXT(),
+               nullable=True)
+    op.drop_column('questionnaire', 'session_id')
+    op.create_foreign_key('fk_app_id', 'session', 'application', ['app_id'], ['id'], use_alter=True)
+    op.create_foreign_key('fk_questionnaire_id', 'session', 'questionnaire', ['questionnaire_id'], ['id'], use_alter=True)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint('fk_questionnaire_id', 'session', type_='foreignkey')
+    op.drop_constraint('fk_app_id', 'session', type_='foreignkey')
+    op.add_column('questionnaire', sa.Column('session_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False))
+    op.alter_column('questionnaire', 'post',
+               existing_type=mysql.TEXT(),
+               nullable=False)
+    op.drop_constraint('fk_genre_id', 'application', type_='foreignkey')
+    op.drop_constraint('fk_type_id', 'application', type_='foreignkey')
+    # ### end Alembic commands ###
diff --git a/migrations/versions/1ee028de452a_.py b/migrations/versions/cb018c771a53_.py
similarity index 52%
rename from migrations/versions/1ee028de452a_.py
rename to migrations/versions/cb018c771a53_.py
index 8c8f074..bd2e305 100644
--- a/migrations/versions/1ee028de452a_.py
+++ b/migrations/versions/cb018c771a53_.py
@@ -1,8 +1,8 @@
 """empty message
 
-Revision ID: 1ee028de452a
+Revision ID: cb018c771a53
 Revises: 
-Create Date: 2019-04-15 23:52:00.910648
+Create Date: 2019-04-16 01:05:44.197617
 
 """
 from alembic import op
@@ -10,7 +10,7 @@
 
 
 # revision identifiers, used by Alembic.
-revision = '1ee028de452a'
+revision = 'cb018c771a53'
 down_revision = None
 branch_labels = None
 depends_on = None
@@ -44,11 +44,39 @@ def upgrade():
     sa.Column('display_name', sa.String(length=250), nullable=False),
     sa.PrimaryKeyConstraint('id')
     )
+    op.create_table('questionnaire',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('pre', sa.TEXT(), nullable=False),
+    sa.Column('post', sa.TEXT(), nullable=False),
+    sa.Column('creation_date', sa.TIMESTAMP(), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
+    sa.Column('session_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['session_id'], ['session.id'], name='fk_session_id', use_alter=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('session',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('app_id', sa.Integer(), nullable=False),
+    sa.Column('creation_date', sa.TIMESTAMP(), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
+    sa.Column('expected_emotions', sa.TEXT(), nullable=False),
+    sa.Column('cssi_score', sa.Float(), nullable=False),
+    sa.Column('latency_scores', sa.TEXT(), nullable=False),
+    sa.Column('total_latency_score', sa.Float(), nullable=False),
+    sa.Column('sentiment_scores', sa.TEXT(), nullable=False),
+    sa.Column('total_sentiment_score', sa.Float(), nullable=False),
+    sa.Column('questionnaire_id', sa.Integer(), nullable=False),
+    sa.Column('questionnaire_scores', sa.TEXT(), nullable=True),
+    sa.Column('total_questionnaire_score', sa.Float(), nullable=False),
+    sa.ForeignKeyConstraint(['app_id'], ['application.id'], name='fk_app_id', use_alter=True),
+    sa.ForeignKeyConstraint(['questionnaire_id'], ['questionnaire.id'], name='fk_questionnaire_id', use_alter=True),
+    sa.PrimaryKeyConstraint('id')
+    )
     # ### end Alembic commands ###
 
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('session')
+    op.drop_table('questionnaire')
     op.drop_table('genre')
     op.drop_table('application_type')
     op.drop_table('application')