Metrics Tools
Metrics tools are software applications or platforms designed to collect, analyze, visualize, and monitor quantitative data about system performance, application behavior, and business operations. They help developers and operations teams track key indicators like response times, error rates, resource utilization, and user activity to ensure reliability and optimize performance. Common examples include Prometheus, Datadog, and New Relic.
Developers should learn and use metrics tools to implement observability in their applications, enabling proactive issue detection, performance tuning, and data-driven decision-making. They are essential for monitoring production systems, debugging performance bottlenecks, and meeting service-level agreements (SLAs) in distributed or microservices architectures.