> 2. Accurate estimation of development times is impossible (not difficult, actually theoretically impossible). All estimates of development times are wrong, some by more than an order of magnitude.
Some are useful. The goal isn’t to be right in that there’s no award for perfect estimates, that would be stupid. But having an estimate, especially with relevance to multiple features is helpful.
At one time a team I worked on used “story point cards” and each person would estimate blindly and the discuss. It was interesting hearing people’s reasons behind their magnitudes.
Over time the story estimates got pretty good. But the number was completely useless objectively and made no sense when comparing teams or different projects.
Some are useful. The goal isn’t to be right in that there’s no award for perfect estimates, that would be stupid. But having an estimate, especially with relevance to multiple features is helpful.
At one time a team I worked on used “story point cards” and each person would estimate blindly and the discuss. It was interesting hearing people’s reasons behind their magnitudes.
Over time the story estimates got pretty good. But the number was completely useless objectively and made no sense when comparing teams or different projects.