System Analysis and Design
An open rectangle

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

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System Analysis and Design
The rule(s) to follow in constructing decision tables is (are):

a decision should be given a name
standardized language must be used consistently.
all of the listed here
the logic of the table is independent of the sequence in which conditions rules are written, but the action takes place in the order is which the events occur.

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System Analysis and Design
An audit trial is

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

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