What it means in plain language
Independent hotels often skip the CRS layer; chains and groups can't operate without one. The CRS holds master rates, manages multi-property availability, and powers the brand.com booking engine. It's the single source of truth before anything pushes to the OTA stack.
How CRS fits in the bigger picture
CRS doesn't live alone - it sits inside the Technology & Systems category and connects to 3 closely related concepts most working revenue managers track in the same breath. Pair this definition with the related terms below to build a working mental model - definitions in isolation are easy to memorize and easy to misuse.
Related terms you should also know
Each of these is one click away - start with whichever you don't already use daily: