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An in-depth exploration of information systems, their components, and various types. It covers topics such as information systems as sociotechnical systems, computer information systems, data, procedures, and the role of people. The document also discusses different types of information systems, including executive information systems, decision support systems, management information systems, office support systems, and transaction processing systems.
Typology: Summaries
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Sadat Academy for Management Science Faculty of Management Science
Represented to Prof. Raghda Naser Proposed by Zeyad Yasser Ahmed 4A 2021 - 2022
Table of Contents Information system ............................................................................................................... 3 Types of information system .................................................................................................. 6 Information system development........................................................................................... 8 List of figures Figure 1: information system .......................................................................................................... 3 Figure 2: information system development ................................................................................... 8 List of tables Table 1: kinds of information .......................................................................................................... 6 Table 2: Types of information system............................................................................................. 9
software that people and organizations use to collect, filter, process, create and also distribute data An emphasis is placed on an information system having a definitive boundary, users, processors, storage, inputs, outputs and the aforementioned communication networks. In many organizations, the department or unit responsible for information systems and data processing is known as "Information Services". Any specific information system aims to support operations, management and decision-making An information system is the information and communication technology (ICT) that an organization uses, and also the way in which people interact with this technology in support of business processes. Some authors make a clear distinction between information systems, computer system, and business process. Information systems typically include an ICT component but are not purely concerned with ICT, focusing instead on the end-use of information technology Information systems are also different from business processes. Information systems help to control the performance of business processes. Alter argues for advantages of viewing an information system as a special type of work system. A work system is a system in which humans or machines perform processes and activities using resources to produce specific products or services for customers. An information system is a work system whose activities are devoted to capturing, transmitting, storing, retrieving, manipulating and displaying information. As such, information systems inter-relate with data systems. on the one hand and activity systems on the other. An information system is a form of communication system in which data represent and are processed as a form of social memory. An information system can also be considered a semi-formal language which supports human decision making and action. Information systems are the primary focus of study for organizational informatics. The six components that must come together in order to produce an information system are:
devices and communications devices. In pre-computer information systems, the hardware might include ledger books and ink.
Figure 2 : information system development Figure 2 : information system development Information technology departments in larger organizations tend to strongly influence the development, use, and application of information technology in the business. A series of methodologies and processes can be used to develop and use an information system. Many developers use a systems engineering approach such as the system development life cycle (SDLC), to systematically develop an information system in stages. The stages of the system development lifecycle are planning, system analysis, and requirements, system design, development, integration and testing, implementation and operations, and maintenance. Recent research aims at enabling and measuring the ongoing, collective development of such systems within an organization by the entirety of human actors themselves. An information system can be developed in house (within the organization) or outsourced. This can be accomplished by outsourcing certain components or the entire system. A specific case is the geographical distribution of the development team.