Professional Scrum Master I (PSM I) — Question 155
Who is responsible for the sizing of Product Backlog items?
Answer options
- A. The Developers after clarifying requirements with the Product Owner
- B. The Product Owner with input from the Developer
- C. The Developers, alone
- D. The most senior people in the organization, including architects and subject matter experts
- E. The Scrum Master
Correct answer: A
Explanation
The correct answer is A, as it is the Developers who assess and size the Product Backlog items after discussing the requirements with the Product Owner to ensure clarity. Option B incorrectly suggests that the Product Owner has primary responsibility, while C implies that Developers work in isolation. D misplaces responsibility with senior personnel, and E mistakenly assigns the Scrum Master a role that does not involve sizing backlog items.