DFD (Data Flow Diagrams)

A Data Flow Diagram (DFD) is a visual representation that illustrates how data moves through a system. It shows the sources of data, the processes that transform it, and the destinations where it is stored or used. DFDs help in understanding the flow of information, identifying where data is collected, processed, and shared. They are commonly used in system analysis and design to communicate complex processes in a clear, easy-to-understand format. By using shapes and arrows, DFDs enable stakeholders to grasp how a system functions without needing extensive technical knowledge.