For the past several years, NASA Goddard Space Flight Center's Flight Projects Directorate (FPD) spearheaded the Business Change Initiative (BCI) to improve program planning and control practices to enhance cost and schedule performance. One outcome of the BCI is a renewed emphasis on schedule in the form of a directive to plan, assess, and measure schedule performance. A guideline with accompanying procedures was developed and released to institute the implementation and adoption of three essential schedule performance metrics: baseline execution index (BEI), hit-miss index (HMI), and current execution index (CEI). These metrics aid project management by quantifying schedule performance against both the schedule baseline as well as the current operating schedule.