Answering: “Who creates a Product Backlog item’s estimate?” (PSPO II)

Estimating Product Backlog Items

Estimating Product Backlog items is a crucial part of Scrum, ensuring that the team can plan and execute their work effectively. This article explores who is responsible for creating these estimates and ensuring they meet the Definition of Done.

Exam Question

Who creates a Product Backlog item’s estimate?
(choose the best answer)
A. The Scrum Master.
B. The most senior people in the organization, including architects and subject matter experts.
C. The Developers after clarifying requirements with the Product Owner.
D. The Developers, alone.
E. The Product Owner with input from the Developers.

Correct Answer

C. The Developers after clarifying requirements with the Product Owner.

Explanation

Correct Answer

C. The Developers after clarifying requirements with the Product Owner:
In Scrum, the Developers are responsible for estimating the effort required to complete Product Backlog items. They create these estimates after clarifying the requirements and understanding the details provided by the Product Owner. This collaborative approach ensures that the estimates are realistic and based on a clear understanding of the work involved. Additionally, the Developers know what it takes to ensure that the item conforms to the Definition of Done, which includes meeting quality standards and any criteria specified by the team.

Incorrect Answers

A. The Scrum Master:
The Scrum Master facilitates the Scrum process and supports the team but does not create estimates. Their role is to ensure that the team follows Scrum practices and helps remove impediments.

B. The most senior people in the organization, including architects and subject matter experts:
While senior people and experts can provide valuable insights and guidance, the actual estimation is done by the Developers who will be doing the work. This ensures that the estimates are based on the team’s understanding and capabilities.

D. The Developers, alone:
While the Developers create the estimates, they do so after clarifying requirements with the Product Owner. This collaboration ensures that the estimates are accurate and aligned with the product goals.

E. The Product Owner with input from the Developers:
The Product Owner does not create the estimates. They provide the necessary information and clarify requirements, but the actual estimation is done by the Developers.

Responsibilities in Scrum

• Product Owner: Provides clear and detailed requirements for the Product Backlog items and collaborates with the Developers to ensure they understand the work.
• Scrum Master: Facilitates the estimation process, ensuring that the team follows Scrum practices and that any impediments are removed.
• Developers: Create the estimates for Product Backlog items based on their understanding of the requirements, the effort involved in completing the work, and ensuring the items conform to the Definition of Done.

Relevance to the PSPO II Exam

Understanding who is responsible for estimating Product Backlog items is crucial for the PSPO II exam. It demonstrates knowledge of team collaboration and the roles and responsibilities within the Scrum framework.

Key Takeaways

• Developers are responsible for creating estimates for Product Backlog items.
• Estimates are created after clarifying requirements with the Product Owner.
• Collaboration between the Product Owner and Developers ensures accurate and realistic estimates.
• Developers ensure that Product Backlog items conform to the Definition of Done.

Conclusion

Estimating Product Backlog items is a collaborative process where Developers create the estimates after clarifying requirements with the Product Owner. This approach ensures that the estimates are realistic, based on a clear understanding of the work involved, and conform to the Definition of Done.