System Analysis and Design
A system analyst designs a new system by

None of these
developing the system as a large, single unit
propose alternatives to the current system
identifying sub systems and the interfaces between sub systems
adopting a developed system to the present environment

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System Analysis and Design
In top down analyis and design

all of the listed here
each succeeding phase is less detailed than the phase before it
each succeeding phase is as detailed as the phase before it.
each succeeding phase is more detailed than the phase before it

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System Analysis and Design
Direct-access organization

uses an index for each key type
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.

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