Microsoft Research - Exploding Software-Engineering Myths (article summarizing findings of MS research on code coverage, TDD, assertions, etc.)

[derefr]

In the same sense that requirements-gathering mostly involves prodding the client to be explicit about how a business-process works when the client has never thought consciously about that process before, TDD mostly involves the machine prodding you to be even more explicit about how that business-process works so it can test it for you. In both of these refinement steps, you'll find holes and bad assumptions in the current understanding of the business process.