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DO on WS vs DO

From: Paul Denning <pauld@mitre.org>
Date: Wed, 14 Jan 2004 13:34:15 -0500
Message-Id: <>
To: www-ws-arch@w3.org

David Orchard's take:

He talks about "must ignore" and "touchless extensibility".
He talks about Schema <xs:any>, but that it must be put into the schemas 
rather than default to must ignore.

Note that SOAP has "mustUnderstand" that can be powerful, especially if the 
default is must ignore.

Dave concludes by saying "I do think that the community should provide an 
easier model for creating and validating extensible xml languages."

I'm not sure what "constraints" we could provide in WSA to address this 

I always liked this 2002 article
which states "Unfortunately, many XML-based applications are actually 
loosely typed but tightly coupled, which is the worst combination.
This is one of the reasons adoption of XSD is a good idea."

Received on Wednesday, 14 January 2004 13:35:39 UTC

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