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

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

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
A couple:

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

ANSWER DOWNLOAD EXAMIANS APP