Generally speaking, "we're scaffolding/not implementing/delaying this part" is something you can do with functional requirements, but not with non-functional re

Generally speaking, "we're scaffolding/not implementing/delaying this part" is something you can do with functional requirements, but not with non-functional requirements. Changing non-functional requirements like security, maintainability, or testability generally requires rewriting the whole system from scratch, incrementally or otherwise.