Wouter van Ooijen <wouter@voti.nl> wrote:
>> I had a long-ish discussion the other day with a
>> (non-engineer) coworker
>> about the difference between a "flow chart" and a "block diagram".
>> It wasn't settled until a (non-native English speaking) coworker
>> came along
>> and took my side.
>
> To my best knowledge a block diagram is something that describes
> hardware, at least anything but software. A flow-chart is something
> that is often misused to describe software. It should be used only to
> describe something totally unstructured, like something that is cooked
> up by a politician or a civil cervant. I you realy must use something
> besides pseudo-code to describe an algorithm check structure charts
> (http://www.cs.umd.edu/hcil/members/bshneiderman/nsd/).
>
> Wouter van Ooijen

A block diagram, IMO, is used to show how a system works, so
you can figure it out the expresion in a Differential equation or in a
Laplace transform equation. At least this is a Keyword in control scenari=
o.
A flow chart is a sequence of states or oparetions that describes almost =
any
system. But is logical. You can not educe mathematical expression from.




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