If the additional items become part of the model, then current NDRs govern their definitions and declarations. If the intent is to add items that do not exist in the model, then yes, it is an NDR issue.
I've been swayed that judicious use of xsd:any can support extensibility.
>reach closure on this issue.
I am unable to call in, but in addition to the end of the document and the end of a line item, I'm of the opinion the end of a party would be a useful place for extensibility through xsd:any ... though I recognize doing anything is a slippery slope that might lead to trying to justify everything being this way.
With all the different kinds of parties, such a repeated structure is much like a repeated line, and having extensibility at the end of a party will allow extensions to live in a context with an implicit relationship should an application wish to derive such a relation.
>that they would need to be elements, rather than attributes).
Ahhh ... I figured it was an NDR rule too ... or is it just the prohibition of xsd:any is an NDR issue?
>or a UBL localization group."
Registration open for XSLT/XSL-FO training: Wash.,DC 2006-06-12/16 World-wide on-site corporate, govt. & user group XML/XSL training.