Answering: “If burndown charts are used to visualize progress, what does a trend line through a release burndown chart indicate?” (PSPO II)

A trend line on a release burndown shows when the remaining work will likely be completed if nothing changes. It is a forecast based on past progress, not a promise.

Exam Question

If burndown charts are used to visualize progress, what does a trend line through a release burndown chart indicate?
(choose the best answer)
A. When all work will be completed so the Scrum Team can be released for other work.
B. When the project will be over if the Product Owner removes work that is equal in effort to any new work that is added.
C. When the work remaining will likely be completed if nothing changes on the Product Backlog or Scrum Team.
D. The evolution of the cost spent on the project.

Correct Answer

C. When the work remaining will likely be completed if nothing changes on the Product Backlog or Scrum Team.

Why This Is the Correct Answer

A release burndown plots the remaining work in the Product Backlog against time. Drawing a trend line through past points projects the current rate forward to where it reaches zero. That projection only holds if the backlog and team stay as they are. In reality, the Product Backlog keeps changing as the Product Owner learns. The Scrum Guide notes that practices like burn-downs, burn-ups and cumulative flows exist to forecast progress, and that “While proven useful, these do not replace the importance of empiricism.” The trend line is useful for conversations with stakeholders, but it must be updated as reality changes.

Why the Other Options Are Wrong

A. When all work is done so the team can be released for other work. The trend line does not decide the team’s future. Product work rarely ends at a fixed point, and stable teams are preferred.

B. When the project ends if the Product Owner removes work equal to new work. This adds a condition the chart does not model. The trend assumes no changes at all, not balanced trade-offs.

D. The evolution of cost spent on the project. A burndown tracks remaining work, not money spent. Cost would need a different chart.

Exam Tip

Burndown questions often hinge on the phrase “if nothing changes”. A forecast from past data assumes stable conditions, and the right answer usually says so.

Key Takeaways

• A burndown trend line is a forecast, not a commitment.
• Forecasts assume the backlog and team stay the same.
• Burndowns support empiricism but do not replace it.