After the Chalmers workshop we had a discussion on the usefulness of systems concepts that were defined in other systems frameworks that are more on the hard side of systems thinking, like from systems dynamics and systems analyses
One of them is leverage points. Personally I find this term of Leverage Points very difficult to use and it is more fitted to a technical or systems analytical or systems dynamics way of thinking than Systems Oriented Design. I also find the causal model where everything is defined in variables and the relations are defined as negative or positive quite restricting and limited. We are working on a list of relations types which will be published when more mature. It shows that not all relations make sense to be represented with nodes and arrows.