1. State Chart diagram Week 08 1

2. objective Describe State chart Diagrams in Dynamic Modelling 2

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5. 5 Specifying Behaviour Interaction diagrams – show how object behave in particular interactions – do not specify all the possible behaviours of objects Different notation is needed to summarize the overall behaviour of objects UML defines statecharts for this purpose

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7. 7 The Value of Statechart Diagram Statechart diagram is the only dynamic model that can illustrate the milestones in the lifetime of one class of objects in its entirety.

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12. Ingredients of a State Machine Diagram 12 Start State Stop State Transition & Self-Transition Guard Condition/ Action State Nesting Decision Point Notes [ CorrectDetails ] / acceptPolicy

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22. State-dependent Behaviour Objects respond differently to the same stimulus at different times This is modelled by defining a set of states – an object can be in one state at any time – the state it is in determines how it responds to events detected or messages received – in particular, an event can cause the object to move from one state to another (a transition) 22

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