Modifying data elements

Once a data element has been saved and released only certain properties can be modified via the Edit this element option from the options menu in the upper right corner. These include the definition and designation of the element, the definition and designation (but not the value) of permitted values and any slots assigned to the data element.

Other modifications, in particular the data type, ranges or units, are no longer possible once a data element has been released. In order to make such changes you have to create a new data element using the existing version as a template as described under Deriving new data elements and making the necessary changes. To avoid confusion and to ensure that you are working with the latest version of a data element, it is recommended to delete the outdated data element from the registry via the Delete element option from the options menu in the upper right corner.

Please be aware that data elements are updated only in the MDR but not in the registry forms. In order to apply any changes made to a data element, forms have to be updated manuallöy by removing the outdated version and adding the updated version.