Roger quotes"
"Design the data to model the end user's real world. "
Which one?
The challenge is having multiple end users with different real worlds
and not enough time or will to reach a consensus, so you design the
data to meet each point of view and glue that together with transforms
to a high level intermediate form that you put somewhere as a
communication hub. Jackson was designing in the days before
Integration of Very Large Distributed Systems (say multiple polities,
multiple authorities, no single payment source).
No free lunch.
However, it pays big time to design data first so you will at least
know about these problems rather than designing an object-framework
that tries to ignore them. The question is, does anyone care?
Clay Shirky blogged on the ACA problems and lays them at the feet of
the unwillingingness of technical teams to explain technical problems
to elite managers who no longer wish to listen to them because then
they would have to tell their evermore elite paymasters that they
aren't going to get the system on time to avoid a vote on the pay.
See Christa McAuliffe: if the social network takes over the business
and thus the design, you are done.
Or even dead.
len
