Introduction to Database What is an Information System: ◼ Data: 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 is an Information System: ◼ Information Data that have been shaped into a form that is meaningful and useful to human beings. What is an Information System: ◼ Input: The capturing or collection of raw data from within the organization or from its external environment for processing in an information system What is an Information System: ◼ Processing The conversion, manipulation and analysis of raw input into a form that is more meaningful to humans What is an Information System: ◼ Output The distribution of processed information to the people who will use it or to the activities from which it will be used. What is an Information System: ◼ Feedback Output that is returned to the appropriate members of the organization to help them evaluate or correct input. What is an Information System: ◼ Computer-based Information System (CBIS) IS that rely on computer hardware and software for processing and disseminating information. Technology: ◼ ◼ ◼ ◼ ◼ ◼ Computer Hardware Computer Software Storage Techniques Communication technologies Network Infrastructure IT Infrastructure Data-Base Management System: ◼ File-based Approach A collection of application programs that perform serv ...
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