The problem?
For example, 3 guys wrote a paper in 86 and they said that a good estimate is an estimate that’s within 25% of the original estimate, 75% of the time … so, mostly one quarter wrong .
Yikes, not a very good prospect at all.
The gist of #noestimates to determine how much scope can be delivered by a given date:
Select the most important piece of work you need to do (highest value first) Break that piece of work down into risk-neutral chunks of work: (…) small enough that failing to deliver it at first attempt will not jeopardize the project [typically ~1 day chunks] Develop (…) Deliver that work to a production-like environment....