The SDMX-ML Structure message is an official SDMX format used for transmission of structural metadata. It is known as one of the SDMX-ML formats, in that it is SDMX whose representation is in XML.
The SDMX-ML Structure message closely mirrors the SDMX Information Model. For this reason, versioning of the message follows that of the information model:
- SDMX-ML 3.0 Structure message =SDMX 3.0 information model
- SDMX-ML 2.1 Structure message =SDMX 2.1 information model
- SDMX-ML 2.0 Structure message = SDMX 2.0 information model
- SDMX-ML 1.0 Structure message = SDMX 1.0 information model
The following is an example of an SDMX-ML 2.1 Structure message illustrating the basic organisation of XML elements, and containing a number of individual structures including Dataflows, Codelists, Data Structure Definitions and Provision Agreements. The full message can be downloaded using this SDMX REST API structure query: https://demo.metadatatechnology.com/FusionRegistry/ws/public/sdmxapi/rest/dataflow/all/EXR/latest/?format=sdmx-2.1&detail=full&references=all