Business use case diagram A taxi company that provides cars to and from an airport may use a case diagram to show the following components: - Business actors: This includes the taxi driver and passengers. - Business use cases: This may include the baggage claim, passenger pickup and ticket counter. - Business system boundary: The boundary is the airport terminal. - Communication links: This includes all interactions between the taxi driver and passengers. The actors share a generalization by relying on each other's responsibilities to fulfill their expectations. For example, the taxi driver relies on the passenger to book a ride and provide payment at the end of the trip while the passenger relies on the taxi driver to take them to their destination. The different use cases, such as the baggage claim, passenger pickup zone and ticket counter, have inclusion relationships. This means one ase case, such as the passenger pickup zone, can't interact with the actors until another use casc, such as baggage claim, has completed its interaction. For example, the passenger must first pick up their luggage at baygage claim before entering the passenger pickup zone. These interactions happen within the system boundary of the airport terminal. Business use case diagram A taxi company that provides cars to and from an airport may use a case diagram to show the following components: - Business actors: This includes the taxi driver and passengers. - Business use cases: This may include the baggage claim, passenger pickup and ticket counter. - Business system boundary: The boundary is the airport terminal. - Communication links: This includes all interactions between the taxi driver and passengers. The actors share a generalization by relying on each other's responsibilities to fulfill their expectations. For example, the taxi driver relies on the passenger to book a ride and provide payment at the end of the trip while the passenger relies on the taxi driver to take them to their destination. The different use cases, such as the baggage claim, passenger pickup zone and ticket counter, have inclusion relationships. This means one ase case, such as the passenger pickup zone, can't interact with the actors until another use casc, such as baggage claim, has completed its interaction. For example, the passenger must first pick up their luggage at baygage claim before entering the passenger pickup zone. These interactions happen within the system boundary of the airport terminal