Who is responsible for tracking the remaining work of the Product Backlog?

The Product Owner is responsible for tracking the remaining work of the Product Backlog because their primary role focuses on maximizing the value of the product resulting from the Development Team's work. This includes managing the Product Backlog effectively, which involves not only creating and prioritizing backlog items but also monitoring and assessing the progress of the work that remains.

By keeping a close eye on the remaining work, the Product Owner ensures that the team can deliver the most valuable features and that stakeholders have a clear understanding of how much work is left and what to expect in upcoming increments. This responsibility is crucial for making informed decisions about prioritization and resource allocation, which are essential for the success of the Scrum process.

In contrast, while the Development Team is responsible for executing the work and can provide insights into their progress, it is the Product Owner who synthesizes this information in the context of the entire Product Backlog. The Scrum Master facilitates the process and helps remove obstacles but does not directly track backlog work. Stakeholders are typically interested in the outcomes but do not manage or track the backlog themselves.