Term Kind Topic What it is
Deployed-Artefact Assertion Fleet Version Assertion, Release State Check practice Testing in Production A check run after every deployment that compares the build identifier reported by each running host against the intended release, so a partially applied deployment fails loudly instead of running two behaviour…
Side-Effect Isolation Synthetic Traffic Containment, Shadow Write Isolation, Test Traffic Tagging practice Testing in Production Ensuring that test, synthetic or shadowed traffic in production cannot produce real-world effects - the control that separates professional production testing from an incident caused deliberately.
Synthetic Monitoring practice Testing in Production Continuously executing a real user journey against production from outside it, so a broken journey is detected before a user reports it.
Testing in Production TIP practice Testing in Production Deliberately validating behaviour against real traffic, data and scale, using controls that bound the blast radius.
Traffic-Mix Skew Canary Population Bias, Assignment Bias concept Testing in Production A canary or experiment arm receiving a population that differs systematically from the baseline - so the comparison measures who was routed rather than what changed.