"I don't necessarily think that the speadsheet, even an improved one, is the best graphical model/structure for articulating complex processes, but it seems to

"I don't necessarily think that the speadsheet, even an improved one, is the best graphical model/structure for articulating complex processes, but it seems to be the best we've discovered thus far." I actually do agree with you on that, as you say its just the best we've discovered so far. But if there is a better model which is as versatile and easy to use, I'm totally open to it.