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Management Information Systems (MIS) provides information which is needed to manage organizations efficiently and effectively. Management information systems involve three primary resources: people, technology, and information or decision making. The strategic role of information systems involves using information technology to develop products, services, and capabilities that give a company strategic advantages over the competitive forces it faces in the global marketplace. This creates strategic information system, information systems that support or shape the competitive position and strategies of an enterprise. Decision support systems (DSS) are a natural progression from information reporting systems and transaction processing systems. Decision support systems are interactive, computer-based information systems that use decision models and specialized database to assist the decision making process of managerial end users. This book discusses all the major areas in information systems with contemporary issues and their effects on business and organization.