And when fish reviews their model, that's pretty obvious. It's not just that the work looks rushed -- it's missing the basics of the telephone business.

Data elements such as service provider, exchange, telephone line, service number and telephone are all modeled incorrectly. "I wonder how on earth they had managed such a successful prototype with a completely broken foundation," says stunned fish. He confronts the prototype development team with that question.

And gets an answer: "Oh, we found the data in the data warehouse itself far too complicated and confusing. "So we used the staging area and built all the reports from the raw data in its original form."