A milestone is a significant intermediate goal in a project and can segment a projectplan into smaller intervals. If a milestone is constrained by a specific date, it is a scheduled milestone. Such time-restrained milestones allow project managers to monitor progress and ensure that critical deadlines are met, e.g. delivery or approval dates. A milestonetrendanalysis helps project managers forecast how delays in meeting certain deadlines set by milestones can possibly delay the whole project.