HW10: Chapter 5

(5.3): ... Using an activity diagram, model the process context... that shows the activities involved in planning a party and the system elements that might be used at each stage.

(5.5): Develop a sequence diagram showing the interactions involved when a student registers for a course in a university...

(5.7):  Based on your experience with a bank ATM, draw an activity diagram that models the data processing involved when a customer withdraws cash from the machine.

(5.8): Draw a sequence diagram fro the same system. Explain why you might want to develop both activity and sequence diagrams when modeling the behavior of a system.

A Sequence diagram shows in better detail the interactions between actors and the objects in a system. This also includes interactions between differing objects. An Activity diagram better shows the  individual activities involved in a system. Together, Sequence and Activity diagrams give the designer and potentially the client a clearer perspective of how the system is structured.