Multiple Threads Model

[Wen]

How do the EA 5.0 support the Multiple Threads Modelling?

Including
- Thread creating/suspend/resume/terminate
- Timeline to indicate the lifecycle of thread
- The relationship between multiple threads interaction, such as mutex, semaphore, event


Thanks

Wen

[mikewhit]

A couple of minutes' thoughts - no doubt others will weigh in with better comments ...

The Fork/Join bar indicates forking and rejoining of the flow of control in Analysis and Activity diagrams.

Any single thread only has a single flow of control, and so is representable in a standard Sequence diagram.

A mutex may be shown as a guard on a transition.
You may also use one of the interaction operators (e.g. 'critical') to show exclusive access on a Sequence diagram.

An event can be shown per se in Analysis and Activity (and State) diagrams (Send and Receive elements), and as a message in a sequence diagram.

A semaphore is just an implementation mechanism.

[jeshaw2]

I don't know if this is a better comment  :-/ but it is another comment.

Threads and thread owners could be modeled on a structure diagram using the Sub-activity_of meronymy (i.e.; part/whole relationship).