| Earned Value is a value assigned to work which was accomplished during a particular period of time. This information can be compared to planned budget and actual costs to provide additional insight into a project’s status. Cost and schedule performance is calculated by Earned Value at the project level. |
Earned Value Defined|
| Schedule Performance Index (SPI) | A measure of a schedule's performance expressed as the ratio of earned value (EV) to planned value (PV). | SPI=EV/PV | Cost Performance Index (CPI) | A measure of the cost performance of budgeted resources, express as a ratio of earned value (EV) to actual cost (AC). | CPI=EV/AC | |