System Analysis and Design
Benchmarking is used

for system acceptance
to maintain files in up-to-data condition
for application proto-typing
to select computer systems
None of these

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System Analysis and Design
A square symbols

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

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