Purpose of state machine diagram
show the various states of any object with an interesting or complicated life cycle.
Purpose of activity diagram
show activity by humans or objects in a similar way to a flow chart
Purpose of sequence diagram
show similar information to communication diagrams, but emphasizing sequences rather than connections.
Purpose of communication diagram
show the messages sent between objects in some scenario.
Sequence, communication, state, and activity are what diagrams ?
UML
Sequence diagram is a ___________ design
Subsystem
Communication is in what phase?
Analysis and requirements
What phase is activity diagram?
Requirement phase