Some structured analysis techniques
Ned Chapin · ACM SIGMIS Database the DATABASE for Advances in Information Systems · 1978
Structured analysis advocates have recommended different graphic aids as the foundation technique. Ross has advocated the actigram and datagram (12). DeMarco and Rose have advocated the data flow diagram (DFD) or bubble chart as it is also known (8, 11). Gane and Sarson have advocated a graphic technique they also call the DFD (9).