Chapter 8. State Machine Diagrams
State machine diagrams are the last of the three kinds of SysML diagrams that you can use to express information about a system’s dynamic behavior. You can display various kinds of states on a state machine diagram, and you can specify four kinds of events to trigger transitions among those states in a running system. SysML also lets you use orthogonal regions to model concurrent state-based behavior.
A state machine diagram is a kind of behavior diagram; like an activity diagram and a sequence diagram, it presents a dynamic view of a system. Unlike an activity diagram and a sequence diagram, a state machine diagram focuses attention on how a structure within a system changes state in response to ...