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70322RE: [XP] Re: Initial Planning and Metaphor

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  • Nick Robinson
    Mar 2, 2003
      > -----Original Message-----
      > From: George Dinwiddie [mailto:programminglists@...]
      > Sent: 01 March 2003 16:29
      > To: extremeprogramming@yahoogroups.com
      > Subject: Re: [XP] Re: Initial Planning and Metaphor
      > Nick Robinson wrote:
      > >
      > >>Why would you create a class graph? Is the class graph just a
      > >>representation of the customer's experience and knowledge in the
      > >>domain? Why would the programmers want this on paper? Why would the
      > >>customer pay for it? Why not just ask the customer how their domain
      > >>works? How does having a class graph give you information about an
      > >>estimate?
      > >>
      > >
      > >
      > > Why would the customer want to pay for a class graph? Thats not
      > what I am
      > > alluding too. Forget XP a second - remember we are doing these
      > workshops as
      > > we dont know XP, and come from an RUP/UP background (or dare I
      > admit it an
      > > ICONIX background for some). These artefacts are what we have typically
      > > produced, and therefore thats why they are being mentioned in
      > the workshops.
      > The question is "for whom are these artifacts produced and what need to
      > they have for them?" "Because we've always done it that way" is a weak
      > reason. You need to ask "why" again (and perhaps again, again) to
      > uncover the underlying reason, if there is one.

      I think you hit the nail on the head though. The "Because we've always done
      it that way" is a subconcious manifestation that affects the thinking when
      in a common situation were experience has been gained. In XP it is obvious
      such questions need to be answered, again and again to reinforce the point.
      In RUP certain documents are produced through the workflow, as they add
      value to the process and the team working that process (at least thats the
      idea though I have seen this fail).

      > - George
      > --
      > -------------------------
      > George Dinwiddie
      > agile programmer for hire
      > Baltimore/Washington area
      > gdinwiddie@...
      > -------------------------
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