System Analysis and Design
Rapid prototyping proves the quality of a design by

both (a) and (b)
None of these
having a data flow diagram
having a program simulate the real system
having the system analyst present an overview of the design to users, programmers, and consultants

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System Analysis and Design
Direct-access organization

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
has records placed randomly throughout the file

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