System Analysis and Design
HIPO

consists of a hierarchy chart and an associated set of input/process/ output charts
None of these
is a forms-driven technique in which standard forms are used to document the information
All of these
captures the essence of top down decomposition.

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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
defines a source or destination of system data
is a data store-data at rest, or a temporary repository of data

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