Absolutely. I delay coding for as long as humanly possible. Mostly because I hate having to re-do work. So I'll usually spec out my schema, sitemaps, full mocku

Absolutely. I delay coding for as long as humanly possible. Mostly because I hate having to re-do work. So I'll usually spec out my schema, sitemaps, full mockups of everything, etc. Then I write my tests, and finally my code dead last. The point for me is to make all the creative decisions (and to do all the creative waffling and do-overs) very early on in the process, on the whiteboard instead of in the IDE (because it's faster to change functionality during the mockup stage than it is to rip out your code). Once I start coding everything should be spec'd in detail.