What key metric does the Application score report include?

The Application score report includes metrics that assess the impact of application performance on user experience. Apdex, which is a standard for measuring user satisfaction based on response times, provides a score that reflects how well an application meets user expectations. Additionally, tracking user actions affected by problems gives a clear picture of how issues in the application directly influence the end-user experience. This combination of metrics allows teams to prioritize performance improvements based on their effect on actual users, making it a crucial component of the Application score report.

The other choices focus on more generalized performance or operational metrics. While they are important in their own right, they do not provide the same level of direct insight into user experience as Apdex and the identification of user actions that were negatively impacted.