Continuous Integration (CI) is a hot buzzword. I’ve had a general sense of it for a while, but Refactoring chapter two brought its place into sharp focus, mainly through Preparatory Refactoring.
Agile and DevOps have pushed faster and more frequent releases. Techniques like integration test, feature flags, canary tests, and monitors evolved to maintain service reliability without slowing that pace. But some code paths are so critical that they cannot fail even once. This is where Scientist comes in.