6.3 Allowed-value sets

The messages defined in this standard make extensive use of allowed-value sets. These allowed-value sets are shared between all DDEX standards and DDEX provides a JSON schema file which lists all the definitions for all the allowed values in all the allowed-value sets. The allowed-value sets, the allowed values and their definitions are also contained in the DDEX data dictionary available from the DDEX knowledge base.

The messages defined in this standard contain a mandatory @AvsVersionId element identifying the version number of the allowed-value sets used in the creation of the messages. The @AvsVersionId at publication is 12. The full namespace for the JSON schema document for the allowed-value sets is:

http://ddex.net/json/allowed-value-sets

DDEX may update the list of allowed-value sets over time and this may therefore require the @AvsVersionId number to be increased. When this happens, the new current @AvsVersionId will be publicised on the DDEX knowledge base. Any such updated version of the allowed-value sets which is issued on a date after the publication date of this standard, forms part of this standard.