With a focus on how the business operates at a high level, logical data flow diagrams are a great starting point, providing the outline needed to create more detailed physical data flow diagrams.

As an exploded view of the context diagram, a level 1 DFD can be thought of as an “exploded view”. This level describes the system’s main functions and breaks down the 0 level DFD process into ...

A logical DFD is different from a physical one. Logic diagrams illustrate ... about how a system is working. As a level 2 data flow diagram (DFD), you can see more detail about the processes that go ...