What defines the relationship between predecessor and successor tasks?

The relationship between predecessor and successor tasks is defined by dependencies. In project management, a dependency indicates the nature of the relationship between tasks, specifically how one task must relate to another in terms of timing and completion. A predecessor task is one that must be completed before another task, the successor, can begin. This structure is crucial for establishing the sequence of tasks and for ensuring that a project flows smoothly, avoiding delays.

Understanding these dependencies helps project managers effectively schedule and allocate resources, as well as identify potential bottlenecks in the workflow. This concept is fundamental in project planning and execution, making it critical for successful project outcomes.