Edward Yourdon, Modern Structured Analysis, Yourdon Press, 1989

MANAGE FLOOR ARRIVAL

The shape that a systems analyst uses for the process is often associated with a particular "camp" of structured analysis. The circle is associated with the "Yourdon/DeMarco" camp, since it was used in various textbooks published by YOURDON Press, as well as the training and consulting activities of YOURDON Inc. Similarly, the oval shape is often associated with the "Gane/Sarson" camp, since it was introduced by McDonnell Douglas Automation Company (McAuto) and various other organizations. The rectangle shape is typically associated with the "SADT" camp, since it was popularized in various articles about Softech's Structured Analysis Design Technique (SADT); see, for example, [Ross and Schoman, 1977].