Cone of Uncertainty
Herding Cats
JANUARY 13, 2017
The notion of the Cone of Uncertainty has been around for awhile. Barry Boehm's work in “Software Engineering Economics”. Prentice-Hall, 1981. The poster below is from Steve McConnell's site and makes several things clear. The Cone is a project management framework describing the uncertainty aspects of estimates or any other project attribute. Estimates of cost, schedule, technical performance on the left have a lower probability of being precise and accurate than estimates on the right.
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