• The practice of using software tools and telemetry data to track, measure, and manage the availability, performance, and user experience of software applications in real-time. APM collects and analyzes metrics such as response times, error rates, throughput, transaction traces, and resource utilization across application components to help detect, diagnose, and resolve performance issues before they impact users. APM is a component of the broader discipline of application performance management and typically encompasses five dimensions: end-user experience monitoring, runtime application architecture discovery, transaction profiling, deep-dive component monitoring, and analytics/reporting, as originally defined by Gartner Research.

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