ISRO | ISRO CS 2007 | Question 77
A physical DFD specifies
(A) what processes will be used
(B) who generates data and who processes it
(C) what each person in an organization does
(D) which data will be generated
Explanation: Physical DFD specifies actual flow of physical documentation and depicts how the system will be implemented.
The processes represent the programs, program modules, and manual procedures.
The data stores represent the physical files and databases, manual files.
It show controls for validating input data, for obtaining a record, for ensuring successful completion of a process, and for system security.
Option (B) is correct.
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