Re: Flowchart protocol

["Branko Collin" <collin xs4all nl>]

On 21 May 2005, at 9:14, Lars Clausen wrote:
> On Fri, 2005-05-20 at 14:18 -0500, Jim Clark wrote:

> > Not a dia question, but I cannot see an answer on the web. I am
> > making a flow chart with a sequence of 4 decision points. If any of
> > those are a "No" I want to go to the same "re-evaluate" box. Is it
> > legal to have the arrows coming out of these decision points all
> > merge into one arrow going to this re-evaluate box?
> > 
> > Otherwise I'd have to have 4 arrows right next to each other all
> > going to one small box. Just looks ugly to me, and silly as they all
> > run parallel for most of their existence. But in my world, where
> > form can trump substance, I want to be sure to follow official
> > flow-charting rules.
> 
> AFAIK, IBM is the place that has the official flow-charting rules, if
> any.  We have not based our shapes on any rules as such, so I can't
> really point you to any.

Is there such a thing as official flow-charting rules? I thought a 
flow-chart was a rather informal diagram.

Wikipedia links to a 5 MB PDF called "Flowcharting Techniques, an IBM 
manual from 1969" (http://www.fh-jena.de/~kleine/history/software/IBM-
FlowchartingTechniques-GC20-8152-1.pdf).

-- 
branko collin
collin xs4all nl