Who must ensure that Product Backlog items conform to the Definition of "Done"?

The correct answer is that the Product Owner must ensure that Product Backlog items conform to the Definition of "Done." The Definition of "Done" is a shared understanding within the Scrum Team of what it means for work to be complete. It is critical for the Product Owner to understand and communicate this definition to ensure that items in the Product Backlog meet quality standards before they can be considered potentially shippable.

The Product Owner is responsible for maximizing the value of the product and the work of the Development Team. To achieve this, they must ensure that the items added to the Product Backlog are well-defined and meet the criteria established by the Definition of "Done." This ensures that the Development Team is not only delivering features or functionality but also adhering to quality standards that align with stakeholder expectations.

While the Development Team is responsible for how to accomplish the work and ensuring that their work meets the Definition of "Done," the Product Owner plays a key role in setting those expectations and ensuring that there is clarity and alignment. Stakeholders participate in the product development process but do not typically manage the Product Backlog or determine its quality standards. The Scrum Master facilitates the Scrum process but is not responsible for defining the content or quality of the Product Backlog items.