A crucial, but often-overlooked step of the taxonomy development, and maintenance process, is validating the taxonomy?  Does it work as you intended?  Have you tested it?  How do you test without fully deploying?  Should you just be concerned about the terms and "content fit," or should you also test your users' reaction?  Taxonomy validation and testing gives you a chance to ensure that your taxonomy works as expected and gives you a chance to make important changes before scaling up for an entire project.  Hear from Seth Earley and other taxonomy experts about how to test-drive your taxonomy in this Community of Practice conference call.