System Analysis and Design
Advantages of data base system is (are)

all applications share centralized files
storage space duplication is eliminated
all of the listed here
data are stored once in the data base and are easily accessible when needed

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System Analysis and Design
A menu-driven system

presents options and allows the user to make selections
None of these
increases the operator's work
is required only for on-line systems
can be used only by computer professionals

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