System Analysis and Design
The Turnaround is

a group of related fields
a program statement that violates one or more rules of the language in which it is written
the elapsed time between the receipt of the input and the availability of the output
the key information of programming
None of these

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System Analysis and Design
System prototyping helps the designer in

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

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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
A couple:

is a data item that moves from one module to another
None of these
is represented by a line joining two modules
None of these
means that the upper module has the capability of calling the lower module

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