diff --git a/mvc/3tier_raf/business_logic.py b/mvc/3tier_raf/business_logic.py
new file mode 100644
index 0000000..5e3ab44
--- /dev/null
+++ b/mvc/3tier_raf/business_logic.py
@@ -0,0 +1,13 @@
+# business_logic.py
+
+import data_layer
+
+def initialize_app():
+    data_layer.initialize_database()
+
+def add_task(task_description):
+    data_layer.add_task_to_db(task_description)
+
+def get_all_tasks():
+    return data_layer.get_all_tasks_from_db()
+
diff --git a/mvc/3tier_raf/data_layer.py b/mvc/3tier_raf/data_layer.py
new file mode 100644
index 0000000..60640e3
--- /dev/null
+++ b/mvc/3tier_raf/data_layer.py
@@ -0,0 +1,28 @@
+# data_layer.py
+
+import sqlite3
+
+def get_connection():
+    conn = sqlite3.connect('tasks.db')
+    return conn
+
+def initialize_database():
+    conn = get_connection()
+    cursor = conn.cursor()
+    cursor.execute('''
+        CREATE TABLE IF NOT EXISTS tasks (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            description TEXT NOT NULL
+        )
+    ''')
+    conn.commit()
+    conn.close()
+
+def add_task_to_db(task_description):
+    conn = get_connection()
+    cursor = conn.cursor()
+    cursor.execute('INSERT INTO tasks (description) VALUES (?)', (task_description,))
+    conn.commit()
+    conn.close()
+
+
diff --git a/mvc/3tier_raf/presentation.py b/mvc/3tier_raf/presentation.py
new file mode 100644
index 0000000..d835b8c
--- /dev/null
+++ b/mvc/3tier_raf/presentation.py
@@ -0,0 +1,34 @@
+# presentation.py
+
+import business_logic
+
+def display_menu():
+    print("\nTo-Do List Menu:")
+    print("1. Add Task")
+    print("2. List Tasks")
+    print("3. Exit")
+
+def main():
+    business_logic.initialize_app()
+    while True:
+        display_menu()
+        choice = input("Choose an option: ")
+
+        if choice == '1':
+            task = input("Enter a new task: ")
+            business_logic.add_task(task)
+            print("Task added!")
+        elif choice == '2':
+            tasks = business_logic.get_all_tasks()
+            print("\nYour Tasks:")
+            for idx, task in enumerate(tasks, start=1):
+                print(f"{idx}. {task[1]}")
+        elif choice == '3':
+            print("Goodbye!")
+            break
+        else:
+            print("Invalid option. Try again.")
+
+if __name__ == "__main__":
+    main()
+
diff --git a/mvc/mvc_raf/model.py b/mvc/mvc_raf/model.py
new file mode 100644
index 0000000..3b0e6ab
--- /dev/null
+++ b/mvc/mvc_raf/model.py
@@ -0,0 +1,17 @@
+# model.py
+
+import business_logic
+
+class TaskModel:
+    def __init__(self):
+        pass
+
+    def initialize_app(self):
+        business_logic.initialize_app()
+
+    def add_task(self, task_description):
+        business_logic.add_task(task_description)
+
+    def get_all_tasks(self):
+        return business_logic.get_all_tasks()
+