With baseline scheduling, you can compare original and actual scheduled dates for your project, enabling you to better track and manage the progress of your project resources and schedules.
Create a schedule with a fully defined critical path. For more information on creating a critical path, see Creating a Critical Path using Predecessors.
Go to Scheduling > Set as Baseline. Light gray bars representing baseline tasks will appear on the Gantt chart. If tasks are shifted on the schedule, the gray bars will remain in place unless you clear or reset the baseline.
When you're ready, go to Reports > Create Baseline Schedule Report to compare original versus actual scheduled dates. For more information, see Creating Baseline Schedule Reports in Scheduling.