transition from any state

[Bokkie]

Hello gurus,

In this state diagram I have I would like to draw/specify that a particular event causes a transition from any state to the 'error' state. At the moment I (ab)use an Entry Point for this purpose. Is this allowed or should I use another technique?

Regards, M.

[«Midnight»]

Perhaps this would work:

Wrap the set of "any" states in a single 'super' state. At the outer level create a state diagram where the super state transitions to an error state if the event occurs.

Now you have your original state diagram within a single state of the outer diagram. This seems correct given your explanation. It sounds like the error state you describe does not indicate that anything represented by the original "any" states is in error, but that the system (or part you are modeling) as a whole has received the event and entered the error state. This corresponds to the outer and inner model.

David

[Bokkie]

Hmmm... sounds a bit cumbersome.

In the good old days when we chipped our SDL diagrams into stone plates we could specify the 'any' state with an '*'. Any state except the states 'A' and 'B' would then be "*,A,B"....

Those where the days  

[jeshaw2]

Well said David!  I concurr...

[«Midnight»]

Hmmm... sounds a bit cumbersome.

In the good old days when we chipped our SDL diagrams into stone plates we could specify the 'any' state with an '*'. Any state except the states 'A' and 'B' would then be "*,A,B"....

Those where the days  

Now of course we have desktop workstations; all one needs to do is hit the oft-mentioned "any" key. My, how computers have simplified the world!