A use case diagram for an online airline reservation system is a visual representation of the different types of actors that interact with and use the system, as well as their respective relationships. Specifically, this type of diagram outlines processes that allow airline reservations to be made online by customers using the system, including ticket bookings and even payment processing. It also covers any other tasks associated with the management of airport operations, such as check-in/check-out procedures, flight schedule, control, etc. A diagram of an online airline reservation system may include symbols for each part of the process, such as customers, web browsers, server-side programs, and databases. This diagram will show the flow of information from customers to the website, the routing to a server program, the retrieval of flight times, routes, and fares from databases, and finally, the response back to the customer’s web browser. The diagram can be modified to show separate processes for internal systems used by airline staff and external systems used by customers in order to book tickets or check in for their flights. With the help of EdrawMax, you can easily recreate a similar diagram.
