Research Paper – Real or Imaginary: The effectiveness of using personas in product design

About Theo Mandel, Ph.D.

Theo Mandel, PhD, is an international expert in product user experience, usability strategy, user research, design, development, and usability testing. Dr. Mandel designs user-, technology- and business-based products, websites and software that meet client objectives and goals and enhance company brands, are successful and provide the appropriate user experience for customers.