About Schedule Performance Index (SPI)
Schedule Performance Index (SPI) is a measure of the work accomplished as a percentage of the work scheduled, SPI indicates whether you are meeting earned and planned values within your schedule.
SPI threshold values are expressed as ratios, where SPI is equal to Earned Value Cost divided by Planned Value Cost. A value less than one indicates that less work was actually performed than was scheduled. If the threshold value is one, the work performed is aligned with the expected cost of performing that work according to the schedule.
Last Published Wednesday, July 10, 2024