Abstract

Technological risk is a fact of life in a technological society. Risk analysis and risk management, designed to control and minimize these risks, involve numerous information processing aspects of considerable complexity, and, as a consequence, induct the use of computers. Computer systems designed to provide information and decision support, not only during operation, but primarily in the design and planning stage of hazardous installations and the handling of hazardous materials, that extensively use data bases, models, and increasingly, expert systems technology, face problems of validity and reliability, and the proper use and interpretation of results.Some of these questions are discussed in this paper in the context of a number of information and decision support systems for industrial risk and hazardous substances management, developed at the International Institute for Applied Systems Analysis (IIASA), for various governmental and industrial clients.

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