Re: UML & Ada

["Martin Dowie" <martin.dowie@nospam.baesystems.com>]

"Marc A. Criley" <mcqada@earthlink.net> wrote in message
news:3C037EED.AB2A5AFD@earthlink.net...
> Ted Dennison wrote:
> >
> > In article <c5b88987.0111220631.39445b76@posting.google.com>, Mark
says...
> > >The key point is that a single "view" of a system can not fully
> > >describe it. You need at least a logical view (modularity) and an
> > >execution/process/task view.
> >
> > That sound a bit like the old data flow vs. control flow dichotomy.
>
> Though few are familiar with it, there is a unified control/data flow
> notation that was developed in the late 80s that was amazingly
> expressive and easy to use.  It was invented by William Bennett of Link
> Flight Simulation and christened "Bennett notation".  Anyone could be

Never heard of that one, but Ward/Mellor was _very_ popular (in the UK
anyway) and also combined control and data flow very easily (still my
favourite notation even after a while using UML). I understand they
were the first to combine STD into DFDs.

Their books are now amazingly cheap (compared to 10 years ago!)

"Structured Development for Real-Time Systems : Essential
 Modeling Techniques" and

"Structured Development for Real-Time Systems : Implementation
 Modeling Techniques"

I seem to remember a third book but can't find it on amazon...

Reading these should be mandatory for all s/w engineers even if
they never use the method or notations ever!!! :-)