System Analysis and Design
An audit trial is

All of these
designed to permit tracing of any input record or process performed on a system, back toits original sources
test data used by the system auditor
None of these
post-auditing the system after its implementation

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System Analysis and Design
HIPO

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

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