I spent the first 15 years of my career doing hands-on human factors in the telecommunications and defense industry. This work was performed across a wide variety of human interfaces, from telephones and television set-top boxes to assembly aids and jigs. This broad exposure introduced me to the entire range of tools required for a well-round human factors professional. Since joining Rice University, I have focused on the measurement of usability across a number of different kinds of systems, including voting, medical, mobile, education, and transportation.

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