PSPO I Practice Question
Who Estimates Scrum Product Backlog Items? Developers' Role
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Question
Who creates a Product Backlog Item’s estimate?(choose the best answer)
Options
- A A. The Scrum Master.
- B B. The Developers, alone.
- C C. The Product Owner with input from the Developers.
- D D. The most senior people in the organization, including architects and subject matter experts.
- E E. The Developers after clarifying requirements with the Product Owner.
Answer
- E. The Developers after clarifying requirements with the Product Owner.
Explanation
In Scrum, the responsibility for estimating Product Backlog Items (PBIs) lies with the Developers. They possess the technical expertise and understanding of the work required to accurately estimate the effort needed for PBIs. However, this process is collaborative; the Developers often clarify requirements with the Product Owner to ensure that the estimates reflect both the scope and the expectations. This collaboration is crucial for creating a shared understanding of what is needed. The Product Owner provides context and priorities but does not dictate estimates, ensuring that the Developers have the autonomy to assess the work. This method fosters accountability and encourages a more realistic and achievable plan for the upcoming Sprints, enhancing the team's ability to deliver value incrementally. Therefore, the correct answer is E, as it captures the essence of teamwork and responsibility in the Scrum framework.
Expert Author
MR
Marcus Rodriguez
Product Owner & Business Analyst
Backlog management, stakeholder collaboration, user stories
Why Other Options Are Wrong
{'A': 'The Scrum Master does not create estimates; their role is to facilitate the Scrum process and support the team in following Scrum practices. They may help the team discuss estimates but do not directly contribute to them. ', 'B': 'While the Developers are responsible for estimates, stating they do this alone is misleading. They must engage with the Product Owner to clarify requirements and understand the context of the work.', 'C': "The Product Owner provides context and priorities but does not create estimates. Estimation is primarily the Developers' responsibility, making this option partially correct but not the best answer.", 'D': "Estimates should not come from senior stakeholders like architects or subject matter experts, as they may lack the specific understanding of the team's capabilities and the work involved. This approach undermines the autonomy of the Development team."}
Real-World Application
In a typical Scrum team, during a Sprint Planning meeting, the Developers review the PBIs and ask the Product Owner questions to clarify the requirements. After discussions, they collaboratively estimate the PBIs using techniques like Planning Poker, ensuring that all team members contribute to the understanding and effort assessment. This practice leads to accurate forecasting and promotes team alignment.
Common Pitfalls
- Assuming the Product Owner should provide estimates.
- Not involving the entire Development team in the estimation process.
- Confusing estimates with commitments.
- Neglecting to clarify requirements before estimating.
Key Concepts
Product Backlog Developers' responsibility Collaboration with the Product Owner Estimation techniques Sprint Planning
Scrum Guide Reference
Scrum Guide 2020, Section: The Product Backlog
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