Doctor of Philosophy, University of Wisconsin, 1976.
Research Association, New York University, New York City, 1977-1978; principal member, Riverside Research Institute, New York City, 1979-1984; consulting scientist, Lockheed Palo Alto (California) Research laboratories, 1985-1991; manager research institute systems science, National U. Singapore, since 1992. Consultant United States Advanced Research Agency, Washington, 1980-1984, Lawrence Livermore (California) Laboratory, 1985, Wave Tracer, Inc., 1991.
Member Institute of Electrical and Electronics Engineers, American Association Artificial Intelligence, Association Computing Machinery.
Married Jane Wilbur, May 17, 1986.