Graphical representation of "Project Triangle"???
Anybody who is involved in projects is aware of the existence of project triangle. Of course, MS Project covers all three segments: money (cost), scope (tasks) and most important time (duration). Quality is usually the result of those three factors, so MS Project itself doesn't recognize such concept.
I've been wondering for a while, why do they call it a triangle? Everybody talks all fancy about project triangle and draw it on the whiteboard or put the image in their presentations, but nobody talks about what happens with that image when scope creep happens, or when the client informs you that the project has to be finished one month before schedule (everybody experiences that sooner or later :) the sunny side of PM :) ).
After trying to find a geometrical explanations, googling and talking to people who are more experienced than me, I finally decided to ask Bob Gibson (World wide known project manager, that was lecturing on PM course that I took early this year). After a couple of minutes of thinking he turned back to me, smiled, shrugged his shoulders and said "You know Luka, I never actually thought about it, but I really think that there is no answer to your question...".
So the only thing that anyone can conclude from the image above is that the three fundaments of PM (money, scope, time) are closely related but you can't visualize changes in any of them through the concept of project triangle.