System Analysis and Design
A hierarchical chart that divides a large program into modules, in which greater details is designed in successively lower programming levels, is called a

None of these
sub-schema
Scheme
All of these
Structure

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System Analysis and Design
An audit trial is

post-auditing the system after its implementation
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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
All of these

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