Gregg Vanderheiden is a Professor of Industrial and Systems Engineering at the University of Wisconsin-Madison. At the university, he serves as Director of the Trace Research and Development Center, which focuses on making standard information technologies and telecommunications systems more accessible and usable by people with disabilities. Dr. Vanderheiden has been working in the area of access to technology for over 30 years. He was a pioneer in the fields of Augmentative and Alternative Communication and assistive technology and coined the term Augmentative Communication. He then worked with the computer industry to develop and build disability access features directly into their standard products. Access features developed by Dr. Vanderheiden and his team have been built into the Macintosh Operating System since 1987, OS/2 and the UNIX X Window system since 1993, and over half a dozen access features developed at Trace are built into Windows 95, 98, NT, 2000 and XP.