Yes it does cost a lot to maintain.
BUT
If the project does not get cancelled and you have a version 2, 3, 4 ...
then the design and the diagrams pay for themselfs many times over.
How do you train the new people that come on the project in version 3
to do some update to the design/code? If you include some comments
in the design of why you did certain things you help them a lot.
What about your test and documentation teams? Those diagrams will
keep them happy. The cost of good design documents are worth thier
the effort.
And the big payoff. You can show your boss that you have done a lot
of work and could you get a raise please.
Eric
--- cut ----
Of course, each one of these costs to produce. But (and most teams forget
this) they cost even more to maintain. If you are not doing throwaway
modelling (which should remain the province of back-of-the-envelope designs
as there is no point in prettifying ephemeral pictures), maintenance of the
artefacts is the killer. So, you really must prove to yourself that the
artefact's benefit will outweigh the cost of both creating and maintaining
it.
I've been with many a team that spent valuable time maintaining pictures and
documents that were seen only when they were updated (i.e. dead-end
artefacts that did not lead to something else). Once they had created the
documents, they could not admit (without losing face) that they did not
really need these things; so, they were condemned to maintain them forever.
... well, actually, until the project ran out of money and canned.
Regards,
Huseyin Angay
Karabash Ltd.
www.karabash.co.uk
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