Expert in user experience and user interface design, consumer psychology, and conducting usability research with three decades of industry experience in software design and development. Has significant experience in human cognition and reading comprehension, which he has applied to the prototyping and evaluation of operating systems, websites, mobile apps, and other software products. Author of two books on user interface design.

Formal Education

  • Ph.D. in Cognitive & Quantitative Psychology, University of Colorado
  • M.S. in Cognitive & Quantitative Psychology, University of Colorado
  • B.S. in Psychology, Miami University (Ohio)

Career Highlights

  • During an eleven-year career at IBM, had key roles in the design and development of the influential Common User Access (CUA) standard for software that was followed by OS/2, Microsoft Windows, and various Unix operating systems as well as by Java AWT and numerous applications
  • Conducted user experience reviews and led usability research in four countries for Microsoft’s key productivity, CRM (customer relationship management), and cloud products including competitor comparison
  • Designed and prototyped new consumer- and merchant-facing desktop and mobile web experiences for PayPal’s redesigned web presence
  • Evaluated the UX/usability of a system to automatically change natural lighting via motorized shades, a network controller, remote controls, and a smartphone/tablet app
  • Iteratively prototyped and designed touchscreen displays for GM’s autonomous passenger vehicles
  • Designed a usability research lab for the world’s largest education company and conducted testing on websites, mobile apps, and software with moderated and unmoderated remote usability feedback

Expert Qualifications

  • Expert witness for plaintiffs and defendants in disputes relating to failed software contracts, user interface design patents, and trademarks
  • Testified at trial as an expert witness on behalf of the U.S. Federal Trade Commission (FTC) in U.S. District Court litigation brought against a major consumer services company for alleged deceptive print, television, and web sales
  • Deposed as an expert witness for the defendant in a U.S. International Trade Commission (ITC) investigation alleging infringement of a late 1990s patent for a context sensitive menu system and behavior