The cost -impact matrix can help us visualize the trade-offs and advantages we get by investing in a product feature. This can help us prioritize and prune our product backlog.

Based on the cost and previously determined business value scores, we now have a clear view of our prioritization matrix. The features in quadrant one are the quick wins (low cost / high value). Anything in quadrant four should not be picked up. Risk backlog, which exists outside of the quadrant, should include functionality or tasks that haven't been picked up now, but are likely to have an impact later. Also, this gives a clear view to the business sponsors of the costs they will incur when we need to build this functionality in the future.