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The process in which the hardware, software, people, network, and data resources of an old information system must be converted to the requirements of a new information system. This usually involves a parallel, phased, pilot, or plunge conversion process from the old to the new system. |
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| Identifying the advantages or benefits and the disadvantages or costs of a proposed solution. |
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Converting data into new data formats required by a new business application and its software and databases. Also includes correcting incorrect data, filtering out unwanted data, and consolidating data into new databases and other data subsets.
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A collection of documents or information that describes a computer program, information system, or required data processing operations. |
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A preliminary study that investigates the information needs of end users and the objectives, constraints, basic resource requirements, cost/benefits, and feasibility of proposed projects. |
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The information system capabilities required to meet the information needs of end users. Also called system requirements |
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| Intangible Benefits and Costs |
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Definition
The nonquantifiable benefits and costs of a proposed solution or system. |
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| Postimplementation review |
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Definition
Monitoring and evaluating the results of an implemented solution or system. |
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Phases include… Initiating/ Defining, Planning, Executing, Controlling, Closing. |
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| Systems Analysis and Design |
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Definition
Analyzing in detail the components and requirements of a system. (2) Analyzing in detail the information needs of an organization, the characteristics and components of presently utilized information systems, and the functional requirements of proposed information systems. Design… Deciding how a proposed information system will meet the information needs of end users. Includes logical and physical design activities, and user interface, data, and process design activities that produce system specifications that satisfy the system requirements developed in the systems analysis stage. |
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| System Development Life Cycle |
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Investigation, Analysis, Design, Implementation, Maintenance |
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The monitoring, evaluating, and modifying of a system to make desirable or necessary improvements. |
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Involves testing and debugging software, testing website performance, and testing new hardware. |
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Recognizing systems, subsystems, components of systems, and system interrelationships in a situation. Also known as a systems context or a systemic view of a situation. |
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The quantifiable benefits and costs of a proposed solution or system. |
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