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For the past 6 months I have been using Test-Driven Development (TDD) on a new project. It has made such a difference to the quality of my code, that I feel I just have to share it's benefits with those who may not have heard of it. TDD reverses the normal order of testing as it requires developers to create automated unit tests before code is written not after. This takes some getting used to, and it can be quite difficult to resist the urge to write code first and then a test, but it really is essential to test first in order to gain the full benefits of TDD. The beauty of this is that it allows you to concentrate on what you want the code to do before you concentrate on how to implement it.
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