High level estimates aren’t optional for most development. Customers waiting for an important feature won’t take “ it’ll come when it comes, estimates aren’t real” as an answer.
You can skip low level estimates, but the consequence of that is that high level timelines are uninformed by them. That’s how you end up in the archetypal situation where all the engineers know a project will slip while their managers report it’s right on track.
You can skip low level estimates, but the consequence of that is that high level timelines are uninformed by them. That’s how you end up in the archetypal situation where all the engineers know a project will slip while their managers report it’s right on track.