System Analysis and Design
Data manipulation language (DML)

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
determine how data must be structured to produce the user's view

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System Analysis and Design
Rapid prototyping proves the quality of a design by

having a program simulate the real system
having the system analyst present an overview of the design to users, programmers, and consultants
None of these
both (a) and (b)
having a data flow diagram

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