In Dynatrace, how are application performance ratings typically aggregated?

Application performance ratings in Dynatrace are typically aggregated by focusing on user-action Apdex ratings. Apdex is a measurement that indicates the satisfaction of users regarding the performance of applications. It does this by categorizing user actions based on how well those actions meet pre-defined performance thresholds.

The aggregation of Apdex ratings involves collecting data on various user actions and analyzing how many of them fall into different satisfaction categories—satisfied, tolerating, and frustrated. This provides a clear view of overall application performance from the end-user's perspective. By using this method, Dynatrace can effectively summarize complex performance data into a single, understandable metric that reflects actual user experiences.

In contrast, the other approaches mentioned—using a single performance index, comparing against industry standards, or utilizing user feedback forms—do not provide the same level of direct correlation to user satisfaction and actionable insights that Apdex ratings offer. While they may serve different purposes in performance management, they do not capture user experiences in the same holistic and dynamic way that aggregating Apdex ratings does.