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Decision Support Systems



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Decision support systems 1 2 3 4 5 6 Evolution of decision support systems Architecture of decision support systems Decision support system sub specialities Sub specialities based on organizational perspectives Application development research The future of decision support systems Overview Decision support systems DSS are a subset of computer based information systems CBIS The general term computer based information systems is a constellation of a variety of information systems such as office automation systems transaction processing systems management information systems and management support systems Management support systems consist of DSS expert systems and executive information systems In the early 1970s scholars in the CBIS area began to recognize the important roles information systems play in supporting managers in their semi structured or unstructured decision making activities It was argued that information systems should exist only to support decisions and that the focus of the information systems development efforts should be shifted away from structured operational control to unstructured critical decisions in organizations Decisions are irreversible and have far reaching consequences for the rest of organizational life The importance of effective decision making can never be overemphasized Decision making is in effect synonymous with management 1 Evolution of decision support systems Since the first electronic general purpose computer was put into full operation in the early 1940s data processing techniques have been continuously advancing It was in the late 1950s that many organizations began to utilize transaction processing systems TPS or electronic data processing EDP systems to automate routine clerical tasks such as payroll inventory and billing In the 1960s we witnessed the emergence of management information systems MIS with the development of database management systems for collecting organizing storing and retrieving data see MANAGEMENT



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