Schedule variance (SV) is the comparison of actual progress to the progress planned in the schedule. It is part of earned value management. The formula is

SV = EV - PV

that is, the schedule variance equals the earned value (value of the work already performed) minus the planned value (the value expected at the same time). A positive SV indicates that the project is ahead of schedule.

Related: schedule performance index, cost variance

Equation hint: The expected value (EV) comes first in the variance equations for SV, CV, SPI, and CPI.[1]

External linksEdit


  1. Passionate Project Management on Schedule Variance versus Schedule Performance Index

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