System Analysis and Design
In a Decision tree

the root is drawn on the left and is the starting point on the decision sequence
the nodes represent the conditions, with the right wise of tree listing the actions to be taken
all of the listed here
the branch, to be followed, depends on the conditions and decisions, to be made

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System Analysis and Design
Data Definition Language (DDL)

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
specifies for the DBMS what is required; the techniques used to process data

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