f statistical data and metadata, which can be applied to any
statistical domain. Various data formats have been defined based on this
information model, such as SDMX-<a href="https://www.rfc-editor.org/rfc/rfc4180">CSV</a>,
SDMX-<a href="https://www.json.org/json-en.html">JSON</a>), and - by far the most widely
known - SDMX-ML (data in <a href="https://www.w3.org/XML/">XML</a>). A key aspect of the
SDMX standard is that one defines the metadata, including data structure,
variables, and code lists beforehand