All the analysis involved in defining the Impact Driven Product experience and ensuring that all business functions are aligned toward meeting the same Key Business Outcomes, as well as a view of costs, comes together in the Cost Impact matrix. The Cost Impact matrix offers a visually compelling view of how a feature's value compares to the cost of building it. This can enable decision-making around which feature ideas to pursue for immediate benefits and which ones to invest in, for longer-term strategic benefit. It also helps in analyzing trade-offs and functional scope, and therefore in determining whether a feature idea can be trimmed down or whether it's worth investing in a feature idea even though the costs are higher. Once the cost-impact comparison is done, the feature ideas can make it to the product backlog.
Now, we have our backlog ready, so let's go and build our product in the next chapter!