blocker

A blocker is a specific issue that completely stops a team from progressing on a work item until it is resolved; it is an impediment that must be removed before work can continue.

Key Points

  • Fully halts progress on a task, story, or workflow step until cleared.
  • Should be made visible quickly, tracked (e.g., impediment log or board), and actively owned for removal.
  • Common causes include external dependencies, missing approvals, access issues, broken environments, or critical defects.
  • PMI cross-reference: See impediment.

Example

During Sprint 2, the team cannot test a feature because the staging environment certificate has expired. The Scrum Master logs the blocker, escalates to IT security to renew the certificate, and keeps the blocker visible until it is cleared so the team can resume testing.

PMP Example Question

During an iteration, a developer cannot access the database required to complete a user story. What should the Scrum Master do first?

  1. Change the Definition of Done to exclude database testing for this sprint.
  2. Extend the sprint to allow time for access to be restored.
  3. Record the issue as a blocker, make it visible, and facilitate restoring access.
  4. Tell the developer to ignore the issue and start an unrelated story.

Correct Answer: C — blocker (an issue that halts progress until resolved)

Explanation: The lack of access stops work on the item, so it is a blocker/impediment that must be made visible and removed. The other choices undermine agile practices.

AI for Agile Project Managers and Scrum Masters

Become an AI-first leader and transform your agile practice by leveraging artificial intelligence as your most powerful co-pilot. This course is designed to help you drive efficiency, insight, and innovation, ensuring you stay at the forefront of a rapidly evolving project management landscape.

This isn't about replacing human intuition—it's about augmenting it. You'll master prompt engineering to automate mundane tasks, freeing up your time for high-impact strategic leadership and creative problem-solving. Learn to refine backlogs, create strategic roadmaps, and integrate AI seamlessly into your agile ceremonies.

Gain predictive power by using AI-driven insights to anticipate project risks and seize new opportunities for more reliable outcomes. We deliver practical, prompt-based workflows and proven strategies built around real-world agile challenges that you can implement immediately within your framework.

Master foundational AI concepts specifically relevant to Scrum environments while developing advanced skills to handle diverse agile scenarios. You will learn to champion an AI-enabled culture within your organization, fostering a dynamic environment of continuous improvement and superior team delivery.

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

Explore the Course


Stop Managing Admin. Start Leading the Future!

HK School of Management helps you learn AI prompt engineering for project work. Move beyond status reports and risk logs with practical prompt frameworks for everyday tasks. Practical skills, tools, and guidance you can apply right away. Covered by Udemy's 30-day refund policy.

Enroll Now