Earned Value SPI Vs Earned Schedule SPI(t)

Both are KPI's, both can measure the actual performance (physical) on the project. But... What happens when you reach dates beyond the original programmed completion date? Follow my posts, and we will discuss this matter deeper. Problem #1: After the baseline completion date, the SPI (EV/PV) or (BCWP/BCWS) only shows "How much of the planned work we achieved", not the real Schedule Performance, as the name of the KPI is. So, when the actual date is beyond the baseline finish date, the indicator keeps rising. ------ Tomorrow we'll keep talking on this issue... Follow us. Consider the table below: If you take a look at the SPI, even when you pass the baseline finish date... the SPI is rising. BCWS 24.00 40.00 63.00 107.00 133.00 150.00 189.00 230.00 231.00 231.00 231.00 231.00 ACWP 22.80 36.72 57.09 96.81 120.92 133.57 155.52 179.60 191.64 209.07 240.00 250.00 BCWP 21.60 33.43 51.17 86.63 108.83 119.57 148.90 182.48 192.00 205.00 226.00 231.00 CPI 0.95 0.91 0.90 0.89 0.90 0.90 0.96 1.02 1.00 0.98 0.94 0.92 SPI 0.90 0.84 0.81 0.81 0.82 0.80 0.79 0.79 0.83 0.89 0.98 1.00 That's why the SPI by itself is not good to measure the schedule performance after the baseline end of the project. ☺