This reminded me a bit of the emergency response guide in Freedom of the Hills. Mountaineering instead of programming, but I can read it in terms of bug triage, refactoring, customer support... https://www.mountaineers.org/about/safety/safety-web-pages/d...

There is a very similar, five-letter (I think) mnemonic that you can invoke when making hard decisions, but I can't remember it for the life of me...

The five-letter one I can think of is OPDCA, which is closely related to PDCA, which itself was (I believe) influenced by OODA.

https://en.m.wikipedia.org/wiki/PDCA