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Project Management & Agile · Advanced

Earned Schedule (ES)

Extension of EVM that measures schedule performance in time units rather than currency.

Definition

Earned schedule identifies the time at which the current EV should have been earned per the baseline; SV(t) = ES - AT and SPI(t) = ES / AT remain meaningful through project completion.

Example

EV equals the PV planned for month 5, but actual time is month 6: SV(t) = -1 month.

Exam tip

Solves the problem of SPI returning to 1.0 at the end of late projects.

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