System Analysis and Design
Data Definition Language (DDL)

specifies for the DBMS what is required; the techniques used to process data
determine how data must be structured to produce the user's view
describes how data are structured in the data base
all of the listed here

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System Analysis and Design
Reverse video is a technique of

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

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System Analysis and Design
A Decision table

represents the information flow
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.
shows the decision paths

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