Task Dependency

A dependency (often called a linked task) determines how a task in a task plan is scheduled, in relation to all other tasks in the task plan. A dependency is based on a task's start date and/or finish date. A dependency that determines how other tasks in a task plan are scheduled is called a predecessor. A dependency that relies on another task's start date or finish date to determine how it can be scheduled is called a successor.

The Task Dependency dialog box is used to manage the dependency types (both predecessor and successor) that have been created within a task plan.