System Analysis and Design
In top down analyis and design

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
all of the listed here

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System Analysis and Design
Reverse video is a technique of

hiding confidential data on the screen
None of these
showing data with half brightness
showing data upside down on the screen
emphasizing data by reversing the foreground and background

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