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Chapter 4. Better Project Management Leads to More Reliable Cost and Schedul...
Chapter 4. Better Project Management Leads to More Reliable Cost and Schedule Performance
Even more important than improving Schedule Performance Index (SPI) and Cost Performance Index (CPI) ratios, companies with higher project management maturity (PMM) deliver projects with more predictable schedule and cost results. As companies improve their PMM, their individual SPI results tend to deviate less from the overall SPI average; see Figure 4-1.
Figure 4-1. SPI Standard Deviation versus PMM
