System Analysis and Design
The records in a file or magnetic tape

have to be arranged in a key sequence
cannot be transferred to a disk file
are meant for backup
can only be accessed serially

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

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