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Re: Two Questions - on XML Schema

• To: xml-dev@l...
• Subject: Re: Two Questions - on XML Schema
• From: Rick Jelliffe <rjelliffe@a...>
• Date: Mon, 13 Mar 2006 16:48:52 +1100
• In-reply-to: <0DF8CBE327D4654F8567FD8123E328B10177AFF8@x...>
• References: <0DF8CBE327D4654F8567FD8123E328B10177AFF8@x...>
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Nathan Young -X (natyoung - Artizen at Cisco) wrote:

> <>I heard someone mention (and I can't remember where or when... but it's
> not my original idea) the idea of having standards for a validation
> warning/error format. When validation was done on an instance, it would
> result in a document snippet that represented the results of that pass
> of validation. Snippets could be concatenated from several validation
> steps, and the result would be a coherent report on the validity of the
> instance.


ISO Schematron has a little language called SVRL (Schematron Validation 
Reporting Language).  It basically is a list of <failed-assert> 
elements.  (It is being used for the test suite due to be finished this 
week. )

It was provided by user request.  One of the earliest implementations of 
Schematron, ZVON Schematron, produced an output document, and so was 
convenient for subsequent processing. My Screamathon Torture Test used a 
similar approach as well.

Defining the outcomes of validation as an XML document is very good, 
because it maintains an XML-in/XML-out workflow, and presumably is less 
non-disruptive than a non-XML "PSVI" API approach.

Cheers
Rick Jelliffe

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