System Analysis and Design
The black-box concept:

is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
All of these
None of these
assumes that the black box is independent
assumes that inputs and outputs will remain stable

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

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.
standardized language must be used consistently.
a decision should be given a name

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