[mwilliamson]

Rapid feedback and short iteration cycles are often considered to be an important part of agile development. TDD suggests that you write a test first, and try to make that test the smallest increment that moves you forward. It feels to me that TDD is an application of the principles of rapid feedback and short iteration cycles on the level of code.

If you think using TDD improves the quality of your code, then it's also important for maintaining high code quality, since that enables some of the other agile practices, such as frequent releases.

I don't worry too much about whether a particular practice is agile or not. If you find TDD useful, then great! It's often included in conversations about agile development, but that doesn't mean you have to be doing agile development in order to use it.

[knoq]

Makes sense. I just see them grouped a lot as if they are a "required dependency" for lack of a better phrase. Thanks