System Analysis and Design
System Study involves

identifying current deficiencies and establishing new goals
All of the listed here
documenting the existing system.
study of an existing system

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System Analysis and Design
An audit trial is

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

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