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   Re: [xml-dev] Can schema stand alone?

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"Atchley, John" <John.Atchley@flightsafety.com> writes:


> I've been reading up on schemas and every example I've seen so far starts by
> referencing the schema namespace at w3c.org (i.e. <xs:schema
> xmlns:xs="http://www.w3.org/2001/XMLSchema";>).  Is this required for schemas
> to operate?  If so, it seems to conflict with my requirement that the data
> be complete and usable even without access to the internet.

Names only mean what the W3C XML Schema REC says they mean if they are
in the XML Schema namespace, whose namespace name is

However, the semantics of those names, particularly as implementations
of schema validity assessment deploy them, does _not_ depend on any
dereferencing of that namespace name.  Schema-aware processors have
_no_ need to be online to implement the W3C XML Schema REC (unless of
course the schema document(s) involved require private non-local
schema documents).

So yes, the name is required for schema documents to be W3C XML Schema
schema documents.  But no, you don't need to be online for W3C XML
Schema schema documents to be used in the expected way.

  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/


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