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Re: Fallacies of Validation ... RE: Are people reall

• To: John Cowan <jcowan@r...>
• Subject: Re: Fallacies of Validation ... RE: Are people really using Identity constraints specified in XML schema?
• From: w3c@d...
• Date: Fri, 27 Aug 2004 09:16:03 -0400
• Cc: xml-dev@l...
• In-reply-to: <20040825193149.GQ3761@s...>
• References: <200408251305.i7PD56M24854@s...> <1093459386.412cddba51a06@m...> <20040825193149.GQ3761@s...>
• User-agent: Internet Messaging Program (IMP) 3.2.2 / FreeBSD-4.8

john,

Horses for courses naturally.  We're both on the RELAX NG TC - so no surprises
here.

The three stand-out things with CAM for me are 

1) Ability to manage context and tie to external processes

2) Ability to reference registry of semantics

3) Ability to capture business rule sets and share them across communities of
interest (CoI)

This is not for everyone - since many people just want a lightweight 'quickie'
fix (aka XSD).  But eventually - once they become involved with multiple tens
of trading partners and exchanges - they begin to see why these are vital in
being able to reach towards lights-out deployment support instead of lights-on
and hands-on.

DW.
============================================================ 
Quoting John Cowan <jcowan@r...>:

> w3c@d... scripsit:
> 
> > There are more examples too. Thinking of purchase order processing
> > - I may have two setups - where two different companies are using
> > different versions and configurations of schema - this happens alot
> > - especially with things like OAGi BODs - so one comapny may be on
> > version 7 the other on version 8.  Mostly the tagnames are the same -
> > but the structures are very different.  The one CAM template would
> > have both structures in - and then select accordingly.
> 
> As I said at Extreme '04, the great thing about RELAX NG is
> that when you have a choice of schemas like this, you draw a
> thin vertical line between the schemas and then it's *done*.
> See http://norman.walsh.name/2004/07/25/xslt20 for a sweet example,
> a validator for either XSLT 1.0 or XSLT 2.0 stylesheets.
> 
> -- 
> Even a refrigerator can conform to the XML      John Cowan
> Infoset, as long as it has a door sticker       jcowan@r...
> saying "No information items inside".           http://www.reutershealth.com
>         --Eve Maler                             http://www.ccil.org/~cowan
> 

• References:
  • Fallacies of Validation ... RE: Are people really using Identity constraints specified in XML schema?
    • From: "Roger L. Costello" <costello@m...>
  • Re: Fallacies of Validation ... RE: Are people really using Identity constraints specified in XML schema?
    • From: w3c@d...

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