Sometimes the goal of the project is to finish the project as earliest as possible, sometimes it is to finish it with the lowest cost, sometimes it is to obtain the best Product with a high quality and design/functionalities, and sometimes it is a mix between cost, time and scope. That is why on the picture below, I call Project control the interaction between the Time, the Cost, the Product’s physico-functional characteristics with the value that the project brings.
We can see on this picture the Work, with its 3 dimensions: PBS, ABS and ZBS (=3D WBS). We can see also the Organization with the Resources which works.
Why do we do the Project? To create Value.
The schedule and the cost are calculated with the Work and Organization constraints.
A Project structuration has 8 dimensions, but there is also an abstract and parallel table to be added and taken in account, it is the Risks evaluation with an impact on all axis of the Project structurationtetrahedron. I mean that there are Risks on each dimensions of the Project: ZBS, PBS, ABS, OBS, Schedule, Costs, Value, and Product's characteristics.
