John is an innovator in usability assessment and optimization for information systems of all kinds. For nearly three decades his work has helped “institutionalize” usability best-practices within some of the largest and most significant organizations in the world. He has taught and applied human-factors and usability principles for a wide variety of clients, including Volkswagen, Sprint, Northrop Grumman, McKesson-HBOC, Pershing, Allen-Bradley (Rockwell Collins), Reuters, Avery Dennison, the U.S. Social Security Administration, and the U.S. Department of Defense, among others.