CAPM Practice: Demonstrate an understanding of a project management plan schedule

Using SPI to forecast schedule: if Planned Remaining Duration = PD_remaining, then Forecasted Remaining Duration = PD_remaining / SPI = PD_remaining / 0.82. This accounts for the current schedule efficiency rate. At SPI = 0.82, for every planned day of work, the team is taking 1/0.82 ≈ 1.22 days. So the project will take approximately 22% longer than originally planned for remaining work. Add this forecasted remaining duration to today's date for the estimated completion date.

**Why not A:** EVM can be used to forecast completion dates through the SPI metric. While EVM is well-known for cost forecasting, schedule performance metrics like SPI provide meaningful schedule forecasting capability by measuring the rate at which work is being completed.

**Why not B:** Adding SV (schedule variance) to the planned end date is conceptually incorrect. SV is measured in monetary units (EV - PV), not time units, making it unsuitable for directly adjusting calendar dates. The SPI-based approach correctly translates efficiency into duration.

**Why not D:** Multiplying BAC by CPI gives EAC (cost forecast), not a schedule forecast. CPI measures cost efficiency, not schedule efficiency. To forecast schedule completion, you need to use SPI, which measures schedule efficiency and can be applied to remaining planned duration.