Well association do have an implicit direction, even if you don't specify them. But they can be a pain in the butt for that reason.

I can imagine. More "capucines" should be aware of it. I consider DSMs as the number one architecture control tool, because of the easy of use, and the fact spreadsheet managers can be provided with a export to excel wink It really takes a couple of hours to understand the concepts and patterns. Because DSMs are so helpful (I did not go into detail on the Heering Holland case) it makes you ned to think about how to make a better EA model in the first place