7.3 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 an XML Schema Definition 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 XML attribute identifying the version number of the allowed-value sets used in the creation of the messages. The AvsVersionId at publication is 7. The full namespace for the XML Schema document for the allowed value sets is:

http://ddex.net/xml/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.