Not quite the same thing, you are talking about QAing the product. Test driven development or more simply unit testing code, is writing automated tests that en

Not quite the same thing, you are talking about QAing the product. Test driven development or more simply unit testing code, is writing automated tests that ensure your code at the smallest unit you can access ( e.g. a single method ) is doing what you expect under all conditions. See: http://en.wikipedia.org/wiki/Test-driven_development http://en.wikipedia.org/wiki/Test-driven_development and: http://en.wikipedia.org/wiki/Unit_test http://en.wikipedia.org/wiki/Unit_test