Delray Beach, FL, USA

©2017 BY JAMES R. LEWIS

JAMES R. LEWIS

PhD, CHFP

This is my personal website. I've worked as a human factors engineer and usability practitioner at IBM since 1981, and have published influential research on the measurement of perceived usability, use of confidence intervals, and sample size estimation for usability studies. I'm an IBM Master Inventor with over 90 US patents issued to date, a member of the Human Factors and Ergonomics Society, a member of the User Experience Professionals Association, and a member and past-president of the Association for Voice Interaction Design.