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information system
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taking a driver's license test on a computer A three-layered pyramid diagram showing the structure of organizational information systems: the base layer is operational support (supply chain management, customer relationship management, transaction processing systems), the middle layer is support of knowledge work (professional support systems, collaboration systems, knowledge management systems), and the top layer is management support (management reporting systems, decision support systems, executive information systems). A circular flowchart illustrates the organizational information systems life cycle, with labeled arrows showing stages: feasibility study, system analysis, system design, programming and testing, installation, operation and maintenance, termination, and upgrade. A three-column diagram outlines steps for securing information systems: identifying threats such as crime, human error, disasters, and failures; establishing general and application controls; and performing financial and operational audits. Structure of an information system Figure 6: The life cycle of an information system.
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taking a driver's license test on a computer
taking a driver's license test on a computer A woman taking a driver's license test on a computer, an example of a government using an information system to provide services to citizens.

information system

computer science
Also known as: information retrieval system, information storage and retrieval system, information storage system(Show More)
Written by
Vladimir Zwass
Gregory Olsen Endowed Chair and University Distinguished Professor of Computer Science and at Fairleigh  Dickinson University, Teaneck, New Jersey, USA.  
Vladimir Zwass
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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information system, an integrated set of components for collecting, storing, and processing data and for providing information, knowledge, and digital products. Business firms and other organizations rely on information systems to carry out and manage their operations, interact with their customers and suppliers, and compete in the marketplace. Information systems are used to run interorganizational supply chains and electronic markets. For instance, corporations use information systems to process financial accounts, to manage their human resources,...

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