System Analysis and Design
The term Parallel Run refers to

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

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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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System Analysis and Design
A pseudocode is

a protocol used in data communication
a machine code
None of these
a computer generated random number
an easy way to communicate the logic of a program, in English¬like statements

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System Analysis and Design
System prototyping helps the designer in

all of the listed here
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
making the programmers understand how the system will function.
giving a demo of the software, to the system manager to whom he reports

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