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A Project Management Method - Graphically

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The real life business process entity is shown as an integral part of this workflow method because it requires a certain numbers of cycles to analyse, capture and structure all processes needed for the next phases. Depending on the complexity of the process, each phase might need to provide feedback for verification and/or request consensus and/or new information in order to proceed with the next phase of the workflow.
Waterfall Model
Path 1-3-5 describes a classical waterfall model ... maybe the first approach in managing a software development life cycle (SDLC). The various phases A-B-C-D are carried out sequentially but its progress is shown as flowing downwards as a water fall. The waterfall approach gives the idea that the next phase will start when the water reaches the bottom of the fall, but it's also a way to quantify work (results) as a function of time (see diagram below).


For optimization purposes, activities within phases should be analyzed using the Project Network D…