Can I trust the Basic schedule equation?
- by Steve Campbell
I've been reading Steve McConnell's demystifying the black art of estimating book, and he gives an equation for estimating nominal schedule based on Person-months of effort:
ScheduleInMonths = 3.0 x EffortInMonths ^ (1/3)
Per the book, this is very accurate (within 25%), although the 3.0 factor above varies depending on your organization…