Theo Mandel

UX Design

User Experience Design and Usability Research Consultant

User experience research, design, prototyping and usability test consultant with offices in Scottsdale, Arizona and Boulder, Colorado.

Extensive experience in banking, finance, education, medical, healthcare, insurance and e-commerce.

Over twenty years consulting experience working with clients world-wide. With a M.A. and Ph.D. in Cognitive Psychology, spent 11 years in IBM developing the OS/2 operating system interface, and co-wrote guidelines for Graphical User Interfaces (GUIs) and Object-Oriented User Interfaces (OOUIs) across the industry. Author of two well-know books in the UX field.

Visit for more information. Complete client list and portfolio available on request.

– Customer research
– User experience design
– UX and usability heuristic reviews
– Iterative low- and high-fidelity prototyping
– UX guidelines development
– Usability testing

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