Description: Error metrics are quantitative measures that reflect the frequency and nature of errors occurring in applications and systems. These metrics are fundamental for monitoring and managing application performance, as they allow developers and administrators to identify issues, assess software stability, and enhance user experience. In the context of software development and operations, error metrics are used to track error events, such as unhandled exceptions, request failures, and other issues that may affect application functionality. By collecting and analyzing these metrics, teams can make informed decisions about optimizing code, infrastructure, and development processes. Error metrics not only help detect problems but also provide valuable insights into the overall health of applications, enabling organizations to respond quickly to incidents and minimize downtime. In summary, error metrics are an essential tool for ensuring software quality and reliability in production environments.