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Subject:   Concept of Composite State and Sub-state
Name:   P M Kulkarni
Date Posted:   Jul 31, 08 - 6:36 AM
Email:   pmkulk@yahoo.co.in
Message:   Hello Miro,

I have gone through your book on Statecharts and found it a quite novel approach to model hierarchical state machines. I would like to clear some of the doubts that I had, hope you would find some time to answer them -

1. Is it mandatory that a Composite state has to transition to a sub-state as per HSM through the Q_INIT signal ? Alternatetly, could we have a design in which it is possible to remain in a composite state and transistion to sub-states explicitly in response to events ? Would the QF support this type of behaviour ?
2. This is more on design - so I would like to know more form your experience - what would be the criteria / guidelines for getting a good HSM design (proper hierarchy, composite states, orthogonal states).

Thanks & Regards,
PMK
Replies:    
Re: Concept of Composite State and Sub-state by Miro Samek · Jul 31, 08 - 10:18 AM


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