Overview: Decision making is a very complex phenomenon. Modern decision makers must deal with very complex problems which are constantly changing and often ill- structured, making modeling and analysis difficult. In order to provide support for the decision makers, computer-based information systems are designed to collect, store, process, and transport information. Recent advances in computer technol- ogy, data communications, database systems, office automation, and knowledge engineering have made possible the design of very sophisticated information sys- tems. However, rapid technological a
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