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13 Cards in this Set
- Front
- Back
conceptual systems design |
- evaluate design alts - prepare design specs - prepare conceptual systems design report |
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design specifications for |
output, data storage, input, processing procedures and ops |
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physical systems design |
1. output design 2. file/database design 3. input design 4. program design 5. procedures design 6. controls design |
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output design |
nature, format, content and timing of reports, docs and screen displays. Outputs: - scheduled report - special-purpose analysis report - triggered exception report - demand reports |
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program design |
-determine user needs
-make development plan -write code -test program -document program -train program users -install the system -use and modify system |
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systems implementation |
- implementation planning and site prep - select/train personnel - complete documentation - test system - conversion |
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complete documentation [3 types] |
- development: describes new AIS - ops: operating scheds, equip, security, file-retention req'ts - user: teaches users how to operate the AIS |
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direct conversion |
terminate old AIS when new is introduced |
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parallel conversion |
operates old and new systems simultaneously fora period |
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phase-in conversion |
gradually replaces elements of old AIS with newone |
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pilot conversion |
implement system in one part of org |
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data files may need to be modified in 3 ways |
-storage medium -content -file/database format |
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postimplementation review |
determine whether system meets its planned objectives |