WHO Creates Data Flow Diagram?
WHO Creates Data Flow Diagram? DFD originated from the activity diagram used in the structured analysis and design technique methodology at the end of the 1970s. DFD popularizers include Edward Yourdon, Larry Constantine, Tom DeMarco, Chris Gane and Trish Sarson. Who designed flow diagrams? In 1921, industrial engineers Frank and Lillian Gilbreth introduced the “Flow