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   Re: [xml-dev] XPath 1.5? (was RE: [xml-dev] typing and markup)

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> Just for discussion, here are two *hypothetical* 
> database systems with a listing of corresponding 
> datatypes.  (no they are real but let's not get 
> into the vendors).   Both of these can issue and 
> accept XML.   Without a way to spec datatypes, 
> just how good are my chances that the db will 
> handle the data not as I see fit, but such that 
> regardless of the db, I or anyone that uses the 
> XML, will get the same results.
> Doesn't this become an issue for anyone who 
> tries to spec a common XML document type 
> for say, ebXML?  Are elements and attribute 
> names sufficient?  Today, we have to write 
> a lot of code to handle this.  I don't think 
> that is a good solution for interop.

Your implication, if I read you rightly, is that it's better to use declarative means to ensure this conformance rather than writing a lot of"code".

Believe me, I preach this gospel every day.

My point is that there is more than one way to declare constraints, and I don't think the way enshrined by XSDL is especially useful, nor do I believe it should receive consideration at the expense of other schemes.

Uche Ogbuji                                    Fourthought, Inc.
http://uche.ogbuji.net    http://4Suite.org    http://fourthought.com
Track chair, XML/Web Services One (San Jose, Boston): http://www.xmlconference.com/
DAML Reference - http://www.xml.com/pub/a/2002/05/01/damlref.html
RDF Query using Versa - http://www-106.ibm.com/developerworks/xml/library/x-think10/index.html
XML, The Model Driven Architecture, and RDF @ XML Europe - http://www.xmleurope.com/2002/kttrack.asp#themodel


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