How we can define schedule baseline?

Schedule baseline is the approved project schedule and used to determine the variation between the plan and actual progress to decide if preventive or corrective action is needed.

In Project Management there are three baselines – schedule baseline, cost baseline and scope baseline. The combination of all three baselines is referred to as the performance measurement baseline.

Schedule baseline is the approved project schedule and used to determine the variation between the plan and actual progress to decide if preventive or corrective action is needed.