Definition: An Observability Application Service provides capabilities to expose, collect, correlate, and analyse telemetry data generated by applications in order to assess their behaviour, performance, health, and reliability at runtime. The service enables consumers (e.g. operations teams, support services, automated management components) to gain actionable insights into application behaviour by using externally observable signals such as metrics, logs, traces, and events, without requiring direct access to internal application state. Within the European Interoperability Reference Architecture (EIRA), the Observability Application Service supports proactive monitoring, troubleshooting, optimisation, and reliability management of Digital Public Services by enabling interoperable access to application-level telemetry and diagnostics information. Source: Observability in Distributed Systems Source reference: https://www.oreilly.com/library/view/observability-in-distributed/9781492033431/ Last modification: 2023-11-20 Identifier: http://data.europa.eu/dr8/ObservabilityApplicationService LOST view: Technical view – application EIRA concept: eira:ArchitectureBuildingBlock Additional identifier: http://data.europa.eu/dr8/ObservabilityApplicationService ABB name: eira:ObservabilityApplicationService Example: An example of observability in practice is a digital public service exposing application metrics, logs, and distributed traces. By analysing response times, error rates, and execution paths, operational teams can identify performance bottlenecks, diagnose incidents, and optimise the application’s behaviour and reliability. Additional information: Observability is treated in EIRA as a service-oriented capability rather than a tooling concern. The Observability Application Service defines what observability capabilities are exposed, independently of how they are implemented or deployed. EIF Layer: TechnicalApplication Interoperability Dimension: Structural IoP