Previously, we have discussed how schedule pressure and various schedule compression techniques may manifest themselves unpredictably and with adverse effect on the project. When pondering this correlation it might be comforting to recall the age old adage of, “haste makes waste”; my grandfather would always postulate. He would know. As a mechanical engineer working on high risk projects including the NASA Space Shuttle, to him it was important that it be done right the first time and every time. This precluded cutting corners to save time, especially with lives at stake.

The Impacted As-Planned method measures the impact of the delays on the as-planned schedule. The delays are formulated as activities and added to the as-planned schedule showing the effect of each delay and demonstrating how the project is being delayed. The amount of delay equals the difference in completion dates between the schedules before and after the impacts.