User-Guide-Driven Development
http://danielbrolund.wordpress.com/2008/08/23/user-guide-driven-development/

Brolund, Daniel
Thoughts of a Goldfish
2008

Abstract:

In my work with Bumblebee I use an approach I call 'User-Guide-Driven Development,' or UGDD for short. The mechanics of UGDD is similar to that of Test-Driven Development (TDD), but before I write the test for a feature, I write a snippet of the user guide describing the feature I am about to implement.