Data element numbers and versions

A unique URN is assigned to each data element in the MDR which is displayed to the right of each data element in the list, e.g., urn:<osse-ID>:dataelement:150:5. In the given example, the first number (150) represents the data element number or ID while the second one (5) indicates the revision number. If data elements are edited retrospectively, the revision number increases by 1. The same system applies to records or data element groups in the MDR.

In the MDR, data elements are shown in the most recent version by default. To view earlier versions of data elements, open the element and select a version from the Revisions dropdown list. The current version is indicated by a green bar (Released) while previous versions are labelled Outdated in orange. Each version can be used as a template for new data elements.