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- From: "Didier PH Martin" <email@example.com>
- To: "'XML Dev'" <firstname.lastname@example.org>
- Date: Wed, 24 Nov 1999 20:44:58 -0500
Don Box sent me a very good comment about XML fragment/document linkage to
That is one approach discussed in the Schema WG composition task force
f.html). The current schema WD does not specify which (if any) of these
approaches will be used unfortunately.
BTW, overloading the xmlns attribute to locate schema docs would break
a lot of existing XML (most of my xmlns URIs have been UUIDs lately) in
addition to making it more difficult to compare two elements for type
equivalence. I am all for using a well-known XML attribute per element
to associate schema with instances, but I don't think overloading the
existing xmlns attribute is a good idea.
Don is right, we have, in the field, several documents using diverse URI for
name space references. things like
URN, URL, etc..
These URI are not necessarily resolvable into a location and a schema
document stored at this place. Thus, we are still in front of the wall: How
to link an XML fragment to its schema?
And in the same vein: how do we link a document to its meta data?
Didier PH Martin
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