Schedule is the order in which activities occur over the course of a project. A schedule follows the constraints imposed by activity relationships and the date types to which an activity must adhere. A good project schedule can serve as a key management tool for making decisions and predicting whether the project will finish on time and within budget. When there are updates to activities or resources, you can reschedule projects to account for these changes. Regularly updating schedules and comparing them with baseline schedules ensures that you are using resources effectively, monitoring project costs against budget, and keeping track of actual durations and costs.