13+ Data Flow Diagram Meaning. Data flow diagram is a type of diagram chart that shows the movement of information from one place to another as part of a particular processor in general. The entire method was devised back in the 1970s as a mean to streamline documenting and subsequent presentation of the workflow processes.
The data flow diagram (dfd) provides a graphical representation of the flow of data through a system. Different processes can store and can get the data from the data store. Data flow diagrams are an important tool of most structured analysis techniques.
However, if you've never created a dfd before.
13+ Data Flow Diagram Meaning. Data store means a simple database table. Dfds show the flow of data from external entities into the system, showed how the data moved from one process to another, as well as its logical storage. Often it is a preliminary step used to create an overview of the system that can later be elaborated. However, if you've never created a dfd before.