Successor Activity

An activity that relies on a predecessor and is scheduled to occur after that earlier task in the sequence of work.

Key Points

  • It follows at least one predecessor and its timing is influenced by that predecessor.
  • Its relationship to the predecessor can be finish-to-start, start-to-start, finish-to-finish, or start-to-finish, with possible leads or lags.
  • Identifying successors is essential for network diagrams and critical path analysis.
  • Changes to a predecessor's dates or duration usually shift the successor's early and late start/finish dates.

Example

"Install wiring" is a successor to "Run conduit" in a finish-to-start relationship with a 1-day lag. Once conduit is complete, the wiring task can begin after the lag.

PMP Example Question

In a finish-to-start relationship with a 2-day lag, which activity begins after the predecessor finishes and the lag has elapsed?

  1. Predecessor activity
  2. Successor activity
  3. Milestone
  4. Control account

Correct Answer: B — the activity that follows and depends on the prior task

Explanation: The successor starts only after the predecessor completes (plus any lead/lag), making option B correct.

Leadership for Project Managers Course

Lead with clarity, confidence, and real impact. This Leadership for Project Managers course turns day-to-day challenges—unclear priorities, tough stakeholders, and cross-functional friction—into opportunities to guide teams and deliver outcomes that matter.

You’ll learn practical leadership skills tailored to project realities: setting direction without overcontrol, creating alignment across functions, and building commitment even when authority is limited. We go beyond theory with tools you can use immediately—one-sentence visioning, stakeholder influence maps, decision framing, and feedback scripts that actually land.

Expect hands-on frameworks, real-world examples, and guided practice to prepare for tough moments—executive readouts, resistance from stakeholders, and high-stakes negotiations. Downloadable templates and checklists keep everything actionable when the pace gets intense.

Learn alongside professionals around the world working in project leadership and delivery.

Explore the Course


Lead with clarity, influence, and outcomes.

HK School of Management offers a practical Leadership for Project Managers course for real projects, tight deadlines, and cross-functional teams. Learn to set direction, align stakeholders, and drive commitment without relying on title. Practical skills, tools, and guidance you can apply right away. Covered by Udemy's 30-day refund policy.

Learn More