The baseline can be described as an original plan of your project that can be used by a manager to compare it to the actual state of affairs. It can be necessary if you want to define if the initial understanding of the project that you got at the first steps of the working process was right. If not, you’ll be able to correct the chosen approaches.
To create a baseline, you have to add a snapshot of your project at a given time to the Gantt Chart. Then, you can compare these timeline projections to the actual timeline of a project to define the activities that were delayed, completed ahead of schedule, or performed on time. Analyzing this info, you can develop a new strategy of scheduling.