System Analysis and Design
Cost-Benefit analysis

compares the cost, with the benefits, of introducing a computer-based system
None of these
estimates the hardware and software costs
All of these
evaluates the tangible and non-tangible factors

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System Analysis and Design
Indexed-Sequential organization

stores records sequentially but uses an index to locate records
means storing records in contiguous blocks according to a key
has records placed randomly throughout the file
uses an index for each key type

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System Analysis and Design
Most algorithms follow the format of

Entering the output items, then processing the output items, and then displaying the output items
Entering the input items, then processing the output items, and then displaying the output items
Entering the input items, then processing the input items, and then displaying the output items
Entering the output items, then displaying the output items, and then processing the output items
Entering the input items, then displaying the input items, and then processing the output items

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