Data-Flow Diagram (DFD)

A Data-Flow Diagram is a graphical tool used to describe and analyze the movement of data through a system. These diagrams depict the sources, destinations, storage, and flows of data within the system. A DFD can be used for the visualization of data processing in software development, business process modeling, and information systems.

Key Components of a DFD include:

DFDs help in understanding the system’s functioning, identifying redundancies and inefficiencies, and designing or troubleshooting systems.