Logical data flow diagrams. Logical data flow diagrams illustrate how data flows in a system, with a focus on the business processes and workflows. With a focus on how the business operates at a high ...

What Are The Two Types Of Data Flow Diagram? A logical DFD is different from a physical one. Logic diagrams illustrate how information is moved through a system, such as where data originates from, ...

Many neophyte data modelers have trouble distinguishing between logical and physical data models. These novices likely cannot explain why each model exists, or the differences expressed between them.