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At 2006-04-21 15:56 -0400, I wrote: >At 2006-04-21 14:51 -0400, Schneider, John Adam CAR wrote: >>I'm deriving types from UBL, some of which have elements which are required >>by the specification. > >Your problem isn't UBL related, it is an issue with the derivation >you are attempting. Just a quick postscript ... I've been reminded (thanks Mark) that even if you did fix your derivation then UBL NDR rules would kick in preventing you from creating your own elements in a UBL namespace. Mechanically it might work but there is a layer of Naming and Design Rules that would disallow changed element definitions. In the UBL committee we are working on documenting various extension methodologies that would be acceptable to the UBL rules. One straw-man that has since been built upon is: http://www.oasis-open.org/archives/ubl/200602/msg00117.html Right now we are looking at creating an optional extension element into which one would put their own extensions as shown at the link above using a non-UBL namespace for the immediate children of the extension element. But the final documentation for this topic has not yet been prepared as we are awaiting more input and the maturing of some necessary tools. I hope this helps. . . . . . . . . . Ken -- Registration open for XSLT/XSL-FO training: Wash.,DC 2006-06-12/16 Also for XSLT/XSL-FO training: Minneapolis, MN 2006-07-31/08-04 Also for XML/XSLT/XSL-FO training:Birmingham,England 2006-05-22/25 Also for XSLT/XSL-FO training: Copenhagen,Denmark 2006-05-08/11 World-wide on-site corporate, govt. & user group XML/XSL training. G. Ken Holman mailto:gkholman@C... Crane Softwrights Ltd. http://www.CraneSoftwrights.com/x/ Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (F:-0995) Male Cancer Awareness Aug'05 http://www.CraneSoftwrights.com/x/bc Legal business disclaimers: http://www.CraneSoftwrights.com/legal
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