Netflix Builds an Ontology-Driven Knowledge Graph for Observability

Ontology-Driven Observability: Building an End-to-End Knowledge Graph at Netflix

Netflix's engineering team describes how it built an end-to-end knowledge graph for observability, using an ontology to formally specify types, properties, and relationships. The approach models facts as subject-predicate-object triples, enabling richer correlation across telemetry and system context. A Hacker News commenter pushes back on the definition, noting that triples are just an implementation detail of OWL and RDF, while ontology in computer science means a formal model of a domain's concepts and constraints.