Glossary: Letter O

An open authorization framework that allows third-party applications to access a user's resources without exposing their credentials. OAuth 2.0 defines authorization flows for web apps, mobile apps, d...

Object-Relational Mapping: a programming technique that converts data between a relational database and object-oriented code, allowing developers to interact with the database using their programming...

The ability to measure the internal state of a system by examining its external outputs. Observability is built on three pillars: metrics (quantitative measurements), logs (event records), and traces...