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   RE: Linking a XML document to its schema

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  • From: "Julian Reschke" <reschke@medicaldataservice.de>
  • To: "Didier PH Martin" <martind@netfolder.com>,"'XML Dev'" <xml-dev@ic.ac.uk>
  • Date: Wed, 24 Nov 1999 15:25:51 +0100

> From: owner-xml-dev@ic.ac.uk [mailto:owner-xml-dev@ic.ac.uk]On Behalf Of
> Didier PH Martin
> Sent: Wednesday, November 24, 1999 2:37 PM
> To: 'XML Dev'
> Subject: Linking a XML document to its schema
> Hi,
> It would make sense to link an XML document or XML fragment to its schema
> with the name space reference. For instance, if I would have the following
> document:
> <mycheck xmlns="http://www.mydomain.com/MyCheckShema.xml">
> .... My check content....
> <theinvoice xmlns="http://www.domain.com/theinvoice.xml">
> ...the invoice content....
> <theinvoice>
> ... other content ....
> </mycheck>
> Then the xmlns attribute URI value would be useful to something other than
> feeding XML-dev discussions.
> Benefits:
> ---------
> Each fragment can be validated with its schema.
> Each fragment is part of a namespace and the name space vocabulary is
> defined by a schema.
> Contrary with what we got in the SGML world, a document can be freely
> aggregated from fragments and still be validated by a validating
> parser. The
> aggregate does not have to centralize the knowledge about the document
> structure.
> Major benefit: re-use and modularity.
> But maybe this is already a work in progress within W3C? If this is the
> case, little Rascals, why do you let us sing "if I where a rich man..." by
> hiding this secret :-)) Otherwise, may I take the liberty to make this
> suggestion (I am modest enough to be sure that you already got this
> suggestion from other people too).

Nice proposal.

And it's even backed by Microsoft (see MSXML behaviour).

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