ConceptScheme

Set of concepts that are used in a Data Structure Definition or Metadata Structure Definition.

Structural definitions of both data and reference metadata associate specific statistical concepts with their representations, whether textual, coded, etc. In SDMX these concepts are taken from a “concept scheme” which is maintained by a specific agency. Concept schemes group a set of concepts, provide their definitions and names. It is possible for a single concept scheme to be used both for data structures and metadata structures. A core representation of each concept can be specified (e.g. a code list, or other representations such as “date”).