System Analysis and Design
Inverted list organization

uses an index for each key type
means storing records in contiguous blocks according to a key.
Stores records sequentially but uses an index to locate records
has records placed randomly throughout the file
None of these

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System Analysis and Design
A Decision table

represents the information flow
shows the decision paths
gets an accurate picture of the system
documents rules, that select one or more actions, based on one or more conditions, from a set of possible conditions.

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System Analysis and Design
System prototyping helps the designer in

giving a demo of the software, to the system manager to whom he reports
all of the listed here
making the programmers understand how the system will function.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.

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