Precedence Relationship

An ordering link between two activities in the precedence diagramming method that shows how one activity depends on another.

Key Points

  • Represents how activities are connected in PDM using FS, SS, FF, or SF links.
  • Controls the sequence of work and may include leads or lags.
  • Displayed as connectors between activity nodes in a schedule network diagram.
  • Choosing the wrong relationship can distort timelines and create infeasible schedules.

Example

In a software project, "Complete design" must finish before "Start development" can begin (Finish-to-Start with zero lag). "Begin system testing" may start two days after "Start integration" (Start-to-Start with a 2-day lag). These links are precedence relationships in the PDM network.

PMP Example Question

In a schedule network built with PDM, the team links "Pour concrete" so it cannot start until "Place rebar" is complete. What is this link called?

  1. Precedence relationship
  2. Resource leveling
  3. Milestone list
  4. Rolling wave planning

Correct Answer: A — Precedence relationship

Explanation: The link defines the dependency and order between two activities in the precedence diagramming method.

Advanced Lean Six Sigma — Data-Driven Excellence

Solve complex problems, reduce variation, and improve performance with confidence. This course is designed for professionals who already know the basics and want to apply advanced Lean Six Sigma tools to real business challenges.

This is not abstract statistics or theory-heavy training. You’ll use Excel to perform real analysis, interpret results correctly, and apply tools like DMAIC, SIPOC, MSA, hypothesis testing, and regression without memorizing formulas or relying on expensive software.

You’ll learn how to measure baseline performance, analyze process capability, use control charts to maintain stability, and validate improvements using statistical evidence. Templates, worked examples, and structured walkthroughs help you apply each concept immediately.

Learn through a complete, real-world Lean Six Sigma project and develop the skills to lead data-driven improvements with credibility. If you’re ready to move beyond basics and make decisions backed by data, enroll now and take your Lean Six Sigma expertise to the next level.



Stop Managing Admin. Start Leading the Future!

HK School of Management helps you master AI-Prompt Engineering to automate chaos and drive strategic value. Move beyond status reports and risk logs by turning AI into your most capable assistant. Learn the core elements of prompt engineering to save hours every week and focus on high-value leadership. For the price of lunch, you get practical frameworks to future-proof your career and solve the blank page problem immediately. Backed by a 30-day money-back guarantee-zero risk, real impact.

Enroll Now