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

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

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
An open rectangle

defines a source or destination of system data
is a data store-data at rest, or a temporary repository of data
None of these
identifies data flow
represents a process that transforms incoming data flow(s) into outgoing data flows

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
System prototyping helps the designer in

communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
giving a demo of the software, to the system manager to whom he reports
making the programmers understand how the system will function.
all of the listed here

ANSWER DOWNLOAD EXAMIANS APP