COMPUTER-BASED INFORMATION SYSTEM
What is CBIS?
Computers are an essential part of modern information systems. A computer based information system (CBIS) is an information system in which the computer plays a major role.
Managers make decisions to solve problems and information is used in making the decisions information is presented in both oral and written forms by an information processor. The computer portion of the information processor contains each of the computer – based application areas. AIS, MIS, DSS, the virtual office and knowledge – based systems. All five of these application areas compose the computer based information system (CBIS) and provide problem – solving information.
A CBIS evolves through stages--- planning, analysis, design, implementation, and use. The stages are called the system life cycle and can be carried out by the user alone or by the user working with information specialists. Even when systems are developed jointly, it is the manager who is responsible for each life cycle phase.
When a manager decides that a system is no longer performing as it should, the system life cycle can be repeated or a more broad-based reengineering approach can be taken.
A Model of Computer-Based Information System: -
Manager makes decisions to solve problems and information is used in making the decisions. Information is presented in both oral and written forms by an information processor. The computer portion of the information processor contains each of the computer-based application areas AIS, MIS, DSS, the virtual office and knowledge-based systems. We use the term computer-based information system (CBIS) to describe the five subsystems that utilize the computer. Figure below shows the model of the CBIS. All of the CBIS subsystems provide information for problem solving
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