System Analysis and Design
Direct-access organization

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

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System Analysis and Design
Cost-Benefit analysis

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

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