Core EVM terms
- PV: Planned Value
- EV: Earned Value
- AC: Actual Cost
- CPI: Cost Performance Index
- SPI: Schedule Performance Index
Why EVM fails in practice
EVM quality depends on progress quality. If reported quantities are delayed or inconsistent, EV metrics look precise but arrive too late for operational correction.
Make EVM operational
Capture daily production, labor, equipment, and materials per activity. This gives EV and AC calculations better granularity and faster signal cycles.