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Re: Making a silk purse out of the schema sows ear - was [xml-

• To: Michael Champion <michael.champion@h...>
• Subject: Re: Making a silk purse out of the schema sows ear - was Minimal XML Specification
• From: Dave Pawson <davep@d...>
• Date: Wed, 08 Feb 2006 17:48:01 +0000
• Cc: XML Developers List <xml-dev@l...>
• In-reply-to: <BAY114-W37B84234AFFD78C8AE7A599000@p...>
• References: <BAY114-W37B84234AFFD78C8AE7A599000@p...>
• Reply-to: davep@d...

On Wed, 2006-02-08 at 09:05 -0800, Michael Champion wrote:
> - RELAX NG is clearly "better" for textual documents but doesn't have
> much support for the data-oriented use cases. (Sure you can plug in
> the XSD type system, but that's a big part of the problem).
A separable part? Other than Jeni Tennison, I haven't seen any uptake on
this issue.
At least relax ng allows data type plug ins.

>   We now have an unpleasant situation of fragmentation where there's
> little mainstream tool support for RELAX NG due to lack of demand,
> exploitation of its geek chic (partly to strike a blow against the
> empire, I suppose), with the result that the normative definitions of
> Atom and ODF can't be used with most commercial XML tools. 
Unless you use relax ng tools to convert to xsd?

> 
> - Schematron is moving forward as an ISO standard and has some good
> implementations but has few normative references in vertical industry
> standards nor mindshare.  (Correct me if I'm wrong about the normative
> references).
I've always viewed Schematron as providing additional functionality
beyond what
my schema validation gives me, not as a replacement? Rick?


> The best way forward that I can see is to encourage end users to
> employ XSD + Schematron
I know of one tool that merges relax ng functionality with schematron
processing.
I haven't heard of anything merging Schematron with xsd validation.
A single stage validation is helpful, rather than pipelining. 

>  as necessary, and encourage W3C to address XSD's  bugs and
> ambiguities before adding more onto an unstable foundation.   What
> does that miss that the world actually values? (as much as it
> depresses me to say it, the world doesn't seem to value RELAX NG's
> elegance and mathematical foundation very much).  

I think it's valued Michael. I'm sure others on this list do too.
I guess we aren't 'the world'.

-- 
Regards, 

Dave Pawson
XSLT + Docbook FAQ
http://www.dpawson.co.uk

• Follow-Ups:
  • Re: Making a silk purse out of the schema sows ear - was Minimal XML Specification
    • From: Martin Probst <martin@x...>

• References:
  • Making a silk purse out of the schema sows ear - was Minimal XML Specification
    • From: "Michael Champion" <michael.champion@h...>

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