I would have loved to show the diagram however I am not 100% sure about the rights to reproduce it are.  It's a shame because it was quite skillful in circling most things back through entities called "Need" and "Customer" and that alone got the Pavlovian response from business managers.

I am still not sure whether it was a brilliantly expressed emphasis on our prime objectives or a cynical piece of NLP to get what the modeller wanted.  Again, that uncertainty and the fact that it worked either way was part of the brilliance of the piece.

Oh, and I'll see your Commodore 64 and raise you one Vic20😉