It is a design technique, that is, one technique to help you design programs. It is not the only technique or a fully comprehensive and brainless methodology t

It is a design technique, that is, one technique to help you design programs. It is not the only technique or a fully comprehensive and brainless methodology that you just plug into and out pop beautifully designed programs. You still need to think, for example. And you can't skip the "refactoring" step, because that is where you get to do much of the design that TDD helps you with.