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
The advantage of Purchase Option is (are)

None of these
All of these
No financing is requird. The risk of system obsolescence is shifted to the lessor
the flexibility of modifying the system at will
Insurances, maintenance, and other expenses are included in the rental charge

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System Analysis and Design
Data manipulation language (DML)

describes how data are structured in the data base
determine how data must be structured to produce the user's view
specifies for the DBMS what is required; the techniques used to process data
all of the listed here

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