Behavior : State Machine Diagrams - What is a State and State Machine - States and Modes
5 important questions on Behavior : State Machine Diagrams - What is a State and State Machine - States and Modes
The words STATE and MODE are often used interchangeably, though MODE is...
While “state” is the more general term, some modelers use “mode” to refer to a system-level state that changes how individual objects behave when the system is in that state.
Give examples of the different modes:
- A System might be in Normal Operation Mode (give an example)
- A System might be in Intensified Operation Mode (give an example)
- A System might be in Degraded Operation Mode (give an example)
- A System might be in Support Operation Mode (give an example)
- A System might be in Normal Operation Mode (Running, Idle, or Stopped)
- A System might be in Intensified Operation Mode (Alert or Emergency)
- A System might be in Degraded Operation Mode (Error or Recovery)
- A System might be in Support Operation Mode (Test or Maintenance)
Give an example of Mode in a Library system and an example of Mode in a Hailed Car system.
In the Hailed Car system, we would expect a Surge Pricing Mode.
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Because an object’s behavior is dependent on its state, it is often convenient to have a ........... containing the name of the possible state so that it can be easily tested.
Modes are modeled exactly like ...... of a System object.
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