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UML and Data Modeling: A Reconciliation by David Hay

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If Dr. Dijkstras structured programming described the best practices for arranging program code, and Messrs. Yourdons and Constantines structured design described the best practices for organizing program modules, then it was structured analysis developed by Tom DeMarco,[73] as well as Chris Gane and Trish Sarson,[74] that addressed the question of what programs should be written in the first place. In two different books, they reveal data flow diagrams—graphic representations of the way a business processes data. The two books used different symbols, but presented fundamentally the same concepts. The diagrams were in terms of:

·         Processes, where a process is the fact that one or more input kinds of data are transformed ...

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