Physical DFD - Definition - Program Writing

Q.  Which type of DFD shows how the data flow is actually implemented in the system and it is also more specific and close to the implementation?
- Published on 23 Jul 15

a. Logical DFD
b. Physical DFD
c. Both A & B
d. None of the above

ANSWER: Physical DFD

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    Discussion

  • Nirja Shah   -Posted on 16 Oct 15
    Types of DFD

    - There are two types of DFD:

    Logical DFD
    - This DFD concentrates on the system process, and flow of data in the system.
    - For example in a Banking software system, how data is moved between different entities.

    Physical DFD
    - This DFD shows how the data flow is actually implemented in the system.
    - It is more specific and close to the implementation.

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