System Analysis and Design
A Turnaround document

None of these
is output at one point which later comes back as an input
All of these
is circulated among all the staff of an organization.
is circulated among all the heads of departments of an organization.

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System Analysis and Design
A square symbols

defines a source or destination of system data
is a data store-data at rest, or a temporary repository of data
None of these
identifies data flow
represents a process that transforms incoming data flow(s) into outgoing data flows

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System Analysis and Design
The term Parallel Run refers to

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

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