New names and types can be invented by users and programmers as the need arises, but where these have general applicability the X-ray applications programmer should be informed, so that this document can be updated if necessary. This will help to avoid a proliferation of local standards. Where the inclusion of new software in ASTERIX involves the introduction of new names/types this should always be reported.
Note that new components should always be located within the MORE structure if it is intended that they should be propagated by software.