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Data of various information sets!

From: Mike Spreitzer <spreitze@parc.xerox.com>
Date: Mon, 8 Mar 1999 23:57:42 PST
To: <www-xml-schema-comments@w3.org>
Cc: "Mike Spreitzer" <spreitze@parc.xerox.com>
Message-ID: <000601be6a02$8240b470$27d1000d@deimos.parc.xerox.com>
Are XML schemas to recognize the fact that one of the things done with XML
is to represent data that has a different information set (than that of XML
instances)?  This is not very clearly addressed in the Requirements
document.  The language of the charter seems to ignore this issue.  Usage
Scenario 7 strongly suggests such recognition, by calling out particular
metadata standards that are about data of non-XML information sets.  I also
find Usage Scenario 6 suggests such recognition to me (e.g., it suggests I
might use an XML schema as a new kind of IDL and map it into various
programming languages, getting not a DOM but the kinds of types one finds in
that language --- records, arrays, unions, and so on).

If such a recognition is indeed made, it seems (to me) to be appropriate to
consider conceptually organizing the content of an XML schema so that one
can view it as containing types for the data of the other information sets,
as well as for their representations in XML.  No such thing currently
appears in the draft requirements list.

Mike Spreitzer <spreitze@parc.xerox.com>
Received on Tuesday, 9 March 1999 02:57:42 UTC

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