What type of errors can be ignored in Apdex calculations?

In Apdex calculations, HTTP errors are typically the type of errors that can be ignored. Apdex (Application Performance Index) is a metric used to measure user satisfaction with an application's performance. It focuses primarily on successful responses and their response times, allowing organizations to gauge the user experience effectively.

HTTP errors represent cases where the server encounters problems fulfilling a request, such as 404 (Page Not Found) or 500 (Server Error). These errors are often regarded as anomalies in the context of measuring user satisfaction because they indicate clear failures in successfully serving requested content or services. As a result, while they are significant in terms of overall system health, they do not contribute valuable information regarding how users experience the application when it is performing correctly.

Instead, Apdex focuses on successful transactions that meet user expectations for response time, thus excluding these types of errors from the calculations to provide a clearer picture of user satisfaction based on successful interactions. This ensures that the Apdex score reflects only the performance metrics that directly influence user experience, allowing teams to identify performance improvement opportunities more accurately.