RE: Test-first modelling

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From: Bauer, Robert (
Date: Fri 12 Jul 2002 - 18:15:41 BST


You might wish to note that this precisely how one goes about building a
complex database; but, in order to "normalize" the database and then deal
with physical design issues for optimization, one needs the whole "thing".
The problem of course is that if you try to do build it incrementally, the
constant refactoring is worse than biting the bullet and tackling the whole


-----Original Message-----
From: Jason Gorman []
Sent: Friday, July 12, 2002 5:28 AM
Subject: Test-first modelling


I'm curious to know if anyone out there has been experimenting with a
test-first approach to building models (?) I know many analysts and
designers flesh out models using use case scenarios to discover needed
operations, but has anyone gone further and managed to get the process down
to a finer level of granularity? Does anyone build and test their models one
scenario of one operation at a time? Does anyone use "mock types" - the
modelling equivalent of mock objects used by many XP-ers? What about
regression testing of models, or model refactoring?


Jason Gorman
Independant Consultant
+44 7785 712367

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