CHAPTER 16
Earned Schedule
Earned value cost metrics, such as cost variance (CV) and cost performance index (CPI), are intuitively obvious and informative of the condition of a project both during execution and when the project is completed. Derived measures, such as estimate at completion (EAC) and estimate to complete (ETC), likewise provide actionable information during a project and at the end.
EV schedule metrics, however, being in currency, are not intuitively obvious to most users and become absolutely misleading during the last half or two-thirds of a project. This is because at the completion of a project, the schedule variance (SV), in currency, is forced to zero and the schedule performance index (SPI) is forced to 1, meaning the ...
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