Tasking diagram for SW Architecture document

[prenom_nomus@yahoo.com (Mark)]

I'm soliciting opinions (hopefully with some practical experience
behind them) on the notational presentation of a concurrency/tasking
diagram which would be used in a software architecture document for
real-time systems. It should be able to represent both OO and non-OO
(modular, Ada-based, etc) designs.

I've noticed that a variant of the UML collaboration diagram seems to
be popular in current publications. Although the folks at Artisan feel
that a DARTS type diagram is more expressive. We have already decided
to use UML static structure diagrams (OMG calls them "class diagrams")
showing UML packages for the logical view and deployment diagrams for
the deployment view.

I am particularly not concerned about CASE tool support for this
diagram since it will NOT be used for any code generation etc. Visio
or similar drawing tools would be fine for this. It is an
informational diagram for engineers.

  thanks 

    Mark