Jeff Patton has designed and developed software for the past 12 years on a wide variety of projects from on-line aircraft parts ordering to electronic medical records. Jeff has focused on Agile approaches since working on an early Extreme Programming team in 2000. In particular Jeff has specialized in the application of user centered design techniques to improve Agile requirements, planning, and products. Some of his recent writing on the subject can be found at www.AgileProductDesign.com and Alistair Cockburn’s Crystal Clear. His forthcoming book to be released in Addison-Wesley’s Agile Development Series gives tactical advice to those seeking to deliver useful, usable, and valuable software.Jeff works currently as an independent consultant, is founder and list moderator of the agile-usability Yahoo discussion group, a columnist with StickyMinds.com and IEEE Software, and a winner of the Agile Alliance’s 2007 Gordon Pask Award for contributions to Agile Development.