The Data Flow DIAGRAM gives us information of the flow of data within the application.
•The DFD can be used to analyze the DESIGN of the application.
•It is a graphical representation of the structure of the data.
•A developer draws context LEVEL DFD first showing interaction between the different components of the application.
•DFD help in developing the software by clarifying the requirements and major functionalities.
•DFDs show the flow of data through a system.
•It is an important MODELING TOOL that allows us to picture a system as a network of functional processes.

The Data Flow Diagram gives us information of the flow of data within the application.
•The DFD can be used to analyze the design of the application.
•It is a graphical representation of the structure of the data.
•A developer draws context level DFD first showing interaction between the different components of the application.
•DFD help in developing the software by clarifying the requirements and major functionalities.
•DFDs show the flow of data through a system.
•It is an important modeling tool that allows us to picture a system as a network of functional processes.