System Analysis and Design
A couple:

is represented by a line joining two modules
None of these
means that the upper module has the capability of calling the lower module
None of these
is a data item that moves from one module to another

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

standardized language must be used consistently.
a decision should be given a name
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.
all of the listed here

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