This System design data flow diagram is a graphical or visual representation of a business's operations through data movement that employs a standardized set of symbols and notations. They are frequently components of formal methodologies like Structured Systems Analysis and Design Method. DFDs may appear to be flow charts or Unified Modeling Language, but they are not intended to represent details of software logic. System design data flow diagrams make it simple to depict the business requirements of applications by representing the sequence of process steps and information flow with a graphical or visual representation rather than a textual description.
