You are the Scrum Master for the ID7 Project for your organization. Martha is serving as the Product Owner for this project. Martha meets with you…

According to the Scrum framework, the Development Team is solely responsible for all estimates of effort for Product Backlog Items. This is because they are the individuals who will be performing the work and are best equipped to determine the complexity, risk, and effort involved. The Product Owner's role is to clarify the requirements and acceptance criteria for these items, ensuring the team has enough information to create a reliable estimate. The Scrum Master facilitates this process, often during Product Backlog Refinement meetings. Using story points is a common and recommended relative estimation technique.

B. The Development Team collaborates with the Product Owner for requirement clarification during estimation, not the Scrum Master. The primary estimation unit is effort (e.g., story points), not directly time and cost.

C. The Product Owner does not estimate the work; this is the Development Team's responsibility. The Scrum Master is a facilitator and does not approve estimates.

D. The Product Owner does not create the estimates. The Development Team creates its own estimates; it does not simply approve estimates provided by someone else.

---

1. A Guide to the Scrum Body of Knowledge (SBOK® Guide)

3rd Edition. SCRUMstudy.

Section 3.6.1

Development Team: "The Development Team is responsible for all estimates. The Product Owner does not estimate

although he or she may influence the team’s estimates by clarifying requirements." (p. 49)

Section 8.3.3.2

Estimate User Stories: "The Scrum Team estimates the effort required to develop the functionality described in each User Story. The Product Owner is present during this process to explain the User Stories and clarify any doubts that the Scrum Team may have." (p. 178)

Section 8.3.4.2

Story Points: This section details the use of story points as a relative unit of measure to estimate the overall effort required to complete a Product Backlog Item. (p. 180)