Once EVM metrics are in place, the next step is forecasting future performance and estimating final project outcomes.

1. Key Forecasting Metrics

Example:

If BAC = ₹100 Cr and CPI = 0.9

EAC = ₹100 Cr + ₹0.9 Cr = ₹111.1 Cr

This results in a projected overrun of 11.1%.

2. Time–Cost S-Curves

S-curves graphically display cumulative planned cost, actual cost, and earned value over time.

They allow quick visual comparison of progress trends and performance gaps.

Curve Zones:

• Early stage: Low cost, low progress.
• Middle stage: Steep curve (active execution).
• Final stage: Flattening curve (close-out).

3. Forecasting Best Practices

• Update EVM weekly or biweekly.
• Validate progress quantities through site reports.
• Re-baseline only for approved changes.
• Analyze trends over time, not just snapshots.