Purpose of using what-if analysis
a. Review scenarios to bring the schedule in line with the plan
b. Document requested changes
c. Provide additional details as to when the schedule baseline should be updated
d. Update the activity attributes
Answer: a. Review scenarios to bring the schedule in line with the plan
What-if analysis
A corrective action is anything that is done to bring expected future schedule performance in line with the schedule baseline. Regarding the project schedule, it usually means taking action to speed up the project. One way to determine why the schedule performance is not in line with the plan is what-if analysis, which may address schedule activities and other scenarios other than the activity that is actually causing the variance. It evaluates scenarios in order to predict their effect on the project’s outcomes, either positive or negative. [Monitoring and Controlling]