Question

what illustrates the movement of information between external entities and the processes and data stores within the system?

Answer 1

A data flow diagram is a graph that shows how data moves between internal operations and external entities as well as between data stores and activities within a system.

What does the movement of data between internal processes and data stores and external entities look like?

• A data flow diagram is a graph that shows how data moves between internal operations and external entities as well as between data stores and activities within a system.

• A data flow diagram (DFD) is a visual representation of how data moves between processes and data stores inside or outside of a system as well as between external entities.

• One of the deliverables for process modeling is context DFD.As seen on the DFD flow chart in Figure 5, a data flow diagram (DFD) is a graphical depiction of the "flow" of data through an information system, simulating various process elements.

• Information traveling through processes and data stores to reach the system is known as data flow.The DFD can show you the direction of the data flow with arrows and brief labels.

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