I would do some unit testing because XYZ. I would do risk identification using method MNO.
As interesting as what we would do is what we considered and decided we would not do:
I wouldn't bother stress testing because ABC.
It's become clear that for any list of things we would do, there are actually three separate lists:
- the things we would do
- the things we would NOT do
- the things we hadn't considered
If we write down only the things that we would do, then we can't distinguish between ideas we considered and rejected - things we would not do - and ideas we simply didn't think of. Sometimes we really did think of everything, but that's pretty rare. Better to include a brief summary of the things we rejected as well as a list of things we will do. That allows us to explain our reasoning, making our assumptions visible for validation. It also allows others to suggest things that we didn't think of.
When you're making a list of what you will do, make a list of what you will not do as well. It'll help you make sure your lists are more complete.