The swar schema is my designation for mathematical modeling and data visualization using graph embedding. S and W represent strong and weak, in the sense of physical forces being strong or weak. Physical force is not generally what is being modeled, though. A and R represent attraction and repulsion, like in electrostatics. Again, electrostatics is used here as an analogy for other things. This notion appears to be the operating principle of Versa CAD®, but my reading so far on that subject has me inconclusive.