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RE: Proper way to use redefine in an hierarchichal set of sche

lmi government consulting
Title: Re: Proper way to use redefine in an hierarchichal set of schemas



I understand perfectly your point. I have been tasked with producing a set of potential solutions for code list extensibility for the committee to review.  Each solution must allow  users of a set of schemas to extend and restrict a code list without modifying the underlying schemas. It is presumed that these underlying schemas are maintained by a standards group, and the users of the schema are in a commercial trading group that wants to implement its own usage agreements without requiring change to the standard.


The set of solution methods that have been proposed in this and other forums include:


  • Substitution Groups
  • Redefine
  • anyURI Plus Lax processing
  • Xsi:type override


Each has its own benefits and costs. When I complete the working white paper, we can discuss which if any are the desired solution set.




From: MCRAWFORD@l... [mailto:MCRAWFORD@l...]
Sent: Friday, May 06, 2005 9:30 AM
To: burnsmarty@c...; xml-dev@l...
Subject: Re: Proper way to use redefine in an hierarchichal set of schemas


Hi marty,

Fyi, xsd:redefine use is prohibited by UBL and UN/CEFACT
Mark R. Crawford
Senior Research Fellow - LMI XML Lead
W3C Advisory Committee, OASIS, RosettaNet Representative
Vice Chair - OASIS UBL TC & Chair Naming and Design Rules Subcommittee
Chair - UN/CEFACT XML Syntax Working Group
Editor - UN/CEFACT Core Components
LMI Government Consulting
2000 Corporate Ridge
McLean, VA 22102-7805
703.917.7177 Phone
703.655.4810 Wireless
The opportunity to make a difference has never been greater


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