Use Case Diagram for the Airline Management System

Let's build the use case diagram of the airline management system and understand the relationship between its different components.

First, we’ll define the different elements of our airline, followed by the complete use case diagram of the system.

System

Our system is an "airline."

Actors

Now, we’ll define the main actors of the airline management system.

Primary actors

• Customer: The customer is the airline's primary actor who can search for flights, create an itinerary, make a payment, and update or cancel the flight reservation.

• Front desk officer: This actor can perform all the actions that the customer can. The front desk officer can create an itinerary, make payment, update or cancel the flight reservation on behalf of customers, assign them seats, and search for flights.

• Admin: The admin is in charge of performing numerous operations, like adding aircraft to the system, adding or modifying flights, flight instances, and their schedules, canceling any flight, and assigning crew to the flight. ...

Secondary actors