System Analysis and Design
Which of the following does not occur in phase - 4 of the system development life cycle (SDLC)

conduct interviews
train users
test the new system
None of these
acquire hardware and software

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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
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.
all of the listed here

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System Analysis and Design
Indexed-Sequential organization

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

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