Earned Schedule (ES)

Earned Schedule (ES) is an extension to the theory and practice of earned value management. It has been stated that Earned Schedule provides a useful link between traditional Earned Value Analysis and traditional project schedule analysis -- a link that some say has been missing in traditional EVM theory.[1] The Earned Schedule allows EVM metrics to be transformed to time or duration metrics to enhance the evaluation of project schedule performance and to forecast the duration needed to complete the project.

  1. Definition - What Does Earned Schedule (ES) Mean? Wikipedia