An administrator is asked to explain what adopting the Common Service Data Model means for an instance whose CMDB already holds thousands of configuration items across many classes. Which statement describes what CSDM is on the Now Platform?
- AA separate database of service records held apart from the CMDB and synchronised with configuration items on a scheduled job.
- BA prescriptive framework of standard classes, attributes and relationships that governs how existing CMDB records are structured and related. Correct
- CA set of discovery patterns that populates service records automatically once horizontal discovery has run across the estate.
- DA reporting layer that reads configuration items and renders service maps without changing how the underlying records are stored.
Why A is wrong: Tempting because CSDM is discussed as a model in its own right, but it introduces no second store: every CSDM record lives in the CMDB tables the instance already uses, so no synchronisation exists.
Why B is correct: Correct, because CSDM is guidance over the existing CMDB: it names which class each record belongs in and which relationships tie services, applications and infrastructure together.
Why C is wrong: Tempting because discovery does populate infrastructure classes, but discovery is a separate capability and CSDM prescribes structure rather than performing any data collection of its own.
Why D is wrong: Tempting because service mapping visualisations are the most visible result of good CSDM adoption, but CSDM governs how records are stored and related, not how they are displayed.