System Analysis and Design
Structured design methodology is an approach to design that adheres to rales based on principles such as

None of these
top-down refinement
All of these
bottom-up design
data flow analysis

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System Analysis and Design
The term Parallel Run refers to

the concurrent operation of an existing system and a new system
None of these
the processing of two different jobs initiated from two terminals.
All of these
the same job run on two different computer to test their speeds

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System Analysis and Design
Data manipulation language (DML)

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

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