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David Vose (talk | contribs) Citation needed removed by refering to PERT distribution article |
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* Decomposes the project into a list of estimable tasks, i.e. a [[work breakdown structure]]
* Estimates the expected value E(task) and the [[standard error]] SE(task) of this estimate for each task time
* Calculates the expected value for the total project work time as
* Calculates the value SE(project) for the standard error of the estimated total project work time as: <math> \operatorname{SE}(\text{project}) = \sqrt{\sum{\operatorname{SE}(\text{task})^2}}</math> under the assumption that the project work time estimates are [[correlation|uncorrelated]]
The E and SE values are then used to convert the project time estimates to [[confidence interval]]s as follows:
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