Project Plan Dependencies are the relationships between tasks in a project plan. Dependencies govern how and when tasks are completed, and result from the logical need for a specific task to be done before another task can start or finish. They can range from simple sequential dependencies (where one task must be completed before the next task can begin) to more complex ones involving multiple tasks that must all happen at the same time. Project managers use them to coordinate their team’s efforts and plan efficient timelines for completing the project. Understanding the various types of dependencies is essential for anyone managing projects!