> mapping out "given this scenario, x, y and z happen".

I've used scenario tables in some contracts. Each row is a scenario. For each scenario, there are columns for Plan A, Plan B, and Plan C. (Some column entries for a given scenario might be blank.)

There are a couple of made-up examples in a blog posting I did a few years back -- scroll down to "Situation tables" at http://www.ontechnologylaw.com/contract-simplification/.