Prior to coming to the University of Pittsburgh, Thomas L. Saaty was a professor at the Wharton School, University of Pennsylvania for 10 years and before that was for seven years in the Arms Control and Disarmament Agency at the U.S. State Department. He is a member of the National Academy of Engineering and serves on the Board of Advisors to Decision Lens, a company based on the Analytic Hierarchy Process (AHP). He is the architect of the decision theory, the Analytic Hierarchy Process (AHP) and its generalization to complex decisions with dependence and feedback, the Analytic Network Process (ANP).
In 2000 he received the Gold Medal for his work on decision making from the International Society for Multi-criteria Decision Making. In 2007 he received the Akao prize given by the Quality Function Deployment (QFD) society. In 2008 he received the Impact Prize from INFORMS (the society for Operations Research) for his seminal work on the Analytic Hierarchy Process and for his contribution to its deployment and its extraordinary impact. In 2009 he received the Chancellor's Distinguished Research Award at the University of Pittsburgh.
The International Symposium on the Analytic Hierarchy Process (ISAHP) that takes place every two years was established in 1988. Recent meetings have been in Bern, Switzerland, 2001 (Sixth ISAHP); in Bali, Indonesia, 2003 (Seventh ISAHP); in Hawaii, 2005 (Eighth ISAHP); in Viña del Mar, Chile, 2007 (Ninth ISAHP); in Pittsburgh, United States, 2009 (Tenth ISAHP). The next meeting will be held in 2011 in Naples, Italy.