Dean T. Barker is an Executive Director for Human Factors International. He is a technical expert participating in ISO/IEC JTC1/SC7, the International Organization for Standardization (ISO) committee responsible for developing standards for Software and Systems Engineering. He is also co-author of Designing Effective Speech User Interfaces, published by John Wiley & Sons. He has fifteen years of experience in usability and software product development, including substantial experience in international software product development for various markets in North America, South America, Europe, and Asia. Mr. Barker has a B.A. in Business Management and Communication and a M.S. in Software Engineering from the University of Minnesota.

Dean has introduced a "pattern approach" to user interface design to several Fortune 500 companies and has written and researched User Interface Patterns extensively as part of his graduate thesis in Software Engineering.

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