Final answer:
The Precedence Diagramming Method (PDM) uses four relationship types: Finish-to-Start, Finish-to-Finish, Start-to-Start, and Start-to-Finish.
Step-by-step explanation:
The Precedence Diagramming Method (PDM) is a tool used in project management to show relationships between different activities in a project. The PDM represents these relationships using four types of relationship types:
- Finish-to-Start (FS): This is the most common and basic type of relationship. Activity A must finish before Activity B can start.
- Finish-to-Finish (FF): Activity A must finish before Activity B can finish.
- Start-to-Start (SS): Activity A must start before Activity B can start.
- Start-to-Finish (SF): Activity A must start before Activity B can finish.
These relationship types are important for understanding the sequence and dependencies between activities in a project.