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- To: <firstname.lastname@example.org>, "Roger L. Costello" <email@example.com>
- Subject: RE: [xml-dev] Are people really using Identity constraints specified in XML schema?
- From: "Hunsberger, Peter" <Peter.Hunsberger@STJUDE.ORG>
- Date: Fri, 20 Aug 2004 09:07:50 -0500
- Cc: <firstname.lastname@example.org>
- Thread-index: AcSGu2R/2EN+MGw+RMGKjY7HGauj1wAArSVQ
- Thread-topic: [xml-dev] Are people really using Identity constraints specified in XML schema?
> I don't buy into any of this layering of constraints!!
> Look here - its 2004 going on 2005 and we're still all
> thinking like COBOL programmers. COBOL had copybooks, C had
> .h files and structs, and Java has similar, and now XML is
> supposed to have XSD. You can add EDI to the list too.
> It's bogus IMHO.
> The real way forward is to put *context* front and center.
> Context drives and is at the heart of the constraint checking
> - and being able to manage this and make it scalable.
Hmm, talk about deja-vu, you must have been writing this at the same
time I was writing my post to you. However, I'd partially disagree that
layering of constraints is bogus; it's just one implementation of
context resolution. I think what you really want to say is that using
a mix of technologies buys you nothing but extra complexity?
And just to reinforce the point in my other post (since I'm sure I lost
it in excess verbiage). Context drives more than just validation: it
drives presentation, security and data retrieval as well.
<snip>other things that make sense</snip>