Newsgroups: comp.lang.smalltalk
From: rfenney@directnet.com (Robert J. Fenney)
Subject: Re: SCRUM and Why the Waterfall Methodology is a Fool's Errand ...
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References: <30AF370B.1AE@vmark.com> <jzqcvc@bmtech.demon.co.uk> <30B246CB.1144@vmark.com> <30B342C1.3774@oma.com> <491aqt$j0@miranda.gmrc.gecm.com>
Date: Thu, 23 Nov 1995 19:16:07 GMT
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In article <491aqt$j0@miranda.gmrc.gecm.com>, paul.johnson@gecm.com (Paul
Johnson) wrote:

> In article <30B342C1.3774@oma.com>, rmartin@oma.com says...
> 
> >This is actually a very serious problem.  Many large organizations
> >have built Waterfall into their accounting system.  They "Captialize"
> >software as it moves through the various waterfall phases.  This has
> >a significant impact on their tax burden. 
> >
> >Clearly they have to change their accounting model in order to move
> >to iterative development.  This is an astounding example of how
> >interdependent things can become. 
> 
> I'm not so sure that this is a problem.  Bertrand Meyer advocates a "cascade"
> lifecycle where you break up a project into clusters (Steve Mellor calls them
> "domains"), each of which is small enough for two or three people to do in a
> month or two.  Then each of these clusters is developed in a mini-Waterfall.
> The "requirements document" for each cluster is the interface it offers its
> clients.
> 
> You could integrate this into the Waterfall Capitalisation accounting system
> by declaring each cluster to be a mini-project, and assigning it a value.
> 
> Paul.
> 
> -- 
> Paul Johnson            | GEC-Marconi Ltd is not responsible for my opinions. |
> +44 1245 473331 ext 2245+-----------+-----------------------------------------+
> Work: <paul.johnson@gmrc.gecm.com>  | You are lost in a twisty maze of little
> Home: <Paul@treetop.demon.co.uk>    | standards, all different.

No you can't because you are not allowing for any iteration with the
submodel after it is completed AND between the models as business rules
change, the problem domain is better understood...... The accounting
department only understands start, end, and cost!

Robert
