Slides from the May 2011 Refresh DC panel on the science of making data-driven design decisions and the art of knowing when to listen and when to ignore the numbers.. Panelists included: • Craig Green, Web Strategist at Network Solutions •Jim Lane, Director of User Experience for AddThis.com at Clearspring Technologies •Paul Koch, Marketing Specialist at Viget Labs Moderated by : •Greg Robleto, Director of User Experience Design at The Motley Fool