CHAPTER 1
Introduction
Given the temporary and unique nature of projects (typically within new and different contexts and conditions), the practice of project management is often a complex and challenging endeavor. Project managers must be able to deal with uncertainty and unknowns. Without access to historic data or known information, project managers use estimation, forecasting, and prediction to plan for projects. One of the most commonly used approaches is to gather expert judgment to “fill in the gaps” in information. For example, project managers may obtain the judgment of experts to estimate the resources necessary to successfully complete a project. Likewise, project managers may gather expert judgment to forecast likely future scenarios ...
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