Doug Seven describes his view of Test-Driven Development (TDD) in Team System.
Test Driven Development (TDD) is not a new concept. In fact, the idea of test-first, code-second has been around for many years. In the latest release of Microsoft's premier developer tool, Visual Studio 2005 Team System many new features have been added, including features for testing software. What does this mean to you, the serious developer? It means you now have integrated unit testing that can be leveraged for Test Driven Development.