管理信息系统复习资料.pdfVIP

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管理信息系统复习资料 Chapter 1 What is an information system ?What activity does it perform ? 1). An information system can be defined technically as a set of interrelated components that collect (or retrieve), process, store, and distribute information to support decision making and control in an organization. In addition to supporting decision making, coordination, and control, information system also help managers and workers analyze problems, visualize complex subjects and create new products. 2). Input. Processing. Output What is the difference between data and information ? ? Information: By information we mean data that have been shaped into a form that is meaningful and useful to human beings. ? Data: Data are streams of raw facts representing events occurring in organizations or the physical environment before they have been organized and arranged into a form that people can understand and use. What are the dimensions of information system? Organizations, people, information technology Chapter 2 What are the characteristics of transaction processing systems? What role do they play in a business? Transaction processing systems (TPS) are computerized systems that perform and record daily routine transactions necessary in conducting business; they serve the organization ’s operational level. The principal purpose of systems at this level is to answer routine questions and to track the flow of transactions through the organization. ? At the operational level, tasks, resources, and goals are predefined and highly structured. ? Managers need TPS to monitor the status of internal operations and the firm ’s relationship with its external environment. ? TPS are major producers of information for other types of systems. ? Transaction processing systems are often

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