Dimension Traditional surveillance Observability platform
Goal Detect whether services, resources, or interfaces are exceptional Explain why the anomaly occurs, where it is affected, and who should handle it
Data Focus on host metrics, interface availability, static logs, and alerts Correlate Metrics, Logs, Traces, RUM, Profile, Kubernetes, cloud resources, and business metrics
Analysis methods Relies on preset Kanban, threshold rules, and manual switching tools Explore and analyze services and resources, requests, access experience, and business objects
Best for System boundaries are clear, dependencies are few, and failure modes are relatively fixed Microservices, cloud-native, multi-cloud, complex dependencies, and cross-team collaboration scenarios