[brianpan]

Definitely agree it sounds like good system design. I think the overlap is the big picture thinking. It provides a way of re-framing goals to give a clearer picture of the most important things.

So not just list everything that could go wrong, but maybe: what's a terrible day for your service/system that's most likely to happen? Cascading failures? Outage that makes accessing/recovering your system impossible? Backups unusable?