Activity Diagram for the Car Rental System

Activity diagrams are a great way to visualize the flow of messages from one activity to another in the system. There can be different activity diagrams that we can create for our car rental system. In this lesson, we will create activity diagrams for the following two activities:

• Vehicle pickup

• Activity challenge: Vehicle return

Vehicle pickup

The states and actions involved in this activity diagram are given below.

States

Initial state: A member with a vehicle booking comes to the rent-a-car reception to pick up the vehicle.

Final state: The guest successfully gets the vehicle, or the system shows a reservation error.

Actions

When a member with a vehicle reservation arrives at the rent-a-car reception, the receptionist validates the reservation and updates the vehicle status.

Based on the order above, the activity diagram of the vehicle pickup from the car rental facility is given below.