Re: agile/xp question (formal analysis)

From: AndyW (foo__at_bar_no_email.com)
Date: 11/29/04 

Date: Tue, 30 Nov 2004 09:48:10 +1200

On Mon, 29 Nov 2004 11:11:01 -0600, Robert C. Martin
<unclebob@objectmentor.com> wrote:

>On Fri, 26 Nov 2004 11:48:19 +1200, AndyW <foo_@bar_no_email.com>
>wrote:
>
>>You know as well as I do that XP/Agile = Mini-Waterfall, so comparing
>>it against waterfall isnt really the right thing to do.
>
>Perhaps you have some definition of "mini-waterfall" that I don't
>recognize. From my point of view mini-waterfall is simply waterfall
>done in short iterations. That is not XP.
>
>XP is certainly run in short iterations; but the time in those
>iterations is not broken down into phases as it would be in a mini
>waterfall. Requirements analysis, design, implementation, and testing
>are all done *concurrently* within the iteration. There are no
>milestones within an XP iteration that demark the completion of the
>requirements analysis for that iteration, or the completion of the
>design for that iteration.
>
Being you cant do analysis, design and imp concurrently, you need to
delay each stage at least a little to allow the output from one to be
used as the input to the other.

Doing so is the same as mini-waterfall where each stage overlaps the
other. There is no real difference between the two in lifecycle.

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