The duration task estimation is a challenge target to the project team. It does not has neither fixed rules nor clear assumptions to follow, it is related to task resources allocation, and could vary from person to another and from project to another. (Wysocki 2012)
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The accuracy of the activity duration estimate can be improved by considering estimation uncertainty and risk. This concept originated with the Program Evaluation and Review Technique PERT. The PERT definition is the Program (or Project) Evaluation and Review Technique, commonly abbreviated as PERT. PERT is …
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