Simple Data Flow Diagram Example. The business process flow diagram is one of the traditional graphical tools used by bpm professionals. Data flow is the path the system s information takes from external entities through processes and data stores.
In this article we will take example of online shopping system dfd to illustrate different terminology used in dfd. It uses defined symbols like rectangles circles and arrows plus short text labels to show data inputs outputs storage points and the routes between each destination. With arrows and succinct labels the dfd can show you the direction of the data flow.
A neat and clear dfd can depict a good amount of the system requirements graphically.
And the reason is very simple. It can be manual automated or a combination of both. Data flow diagram symbols and notation used in dfd. A physical data flow diagram shows how the system will be implemented including the hardware software files and people in the system.
