A Practical Guide to Earned Value Project Management, 2nd Edition
by Charles I. Budd, Charlene M. Budd
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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