[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: When to Validate XML?

  • From: ht@c... (Henry S. Thompson)
  • To: Leigh Dodds <ldodds@i...>
  • Date: Fri, 02 Nov 2001 09:50:08 +0000

Re:  When to Validate XML?
Leigh Dodds <ldodds@i...> writes:

> > -----Original Message-----
> > From: Ajay K sanghi [mailto:sanghi@g...]
> > Sent: 01 November 2001 06:12
> > To: Max Dunn; 'Magick, Brian'; xml-dev@l...
> > Subject: RE:  When to Validate XML?
> >
> > I think an important question to ask before deciding to turn on validation
> > at DTD/Schema level is "How can I report back the appropriate
> > non-conforming error in the XML file to the sender?".
> >
> > If my application has better reporting capability then I would turn off
> > DTD/Schema validation. If in conjunction, I can use DTD/Schema
> > validation as "invariant", nothing like it. And of course, if I am able to
> report
> > non-conforming error using DTD/Schema validation then I would turn it on.
> 
> This is an interesting point. Schema languages are increasingly
> powerful in terms of the validation rules that they can express, but
> are their error reporting capabilities increasing in step? One could
> argue that this isn't a function of the schema language, but of
> the processor.
> 
> However, it seems like a declarative way to associate readable text
> messages for a user, or pointers to additional documentation would be a
> useful feature. (A user here might be another application, and the pointer
> may
> be to a series of data cleansing routines).
> 
> So, do any of the existing schema languages support this?

XML Schema supports it explicitly in the REC -- every
element/attribute information item _must_ be
annotated post-validation to indicate its cool/losing/not-checked
status, and a PSVI property is specified for listing cross-references
to the REC for each error detected wrt an item.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@c...
		     URL: http://www.ltg.ed.ac.uk/~ht/

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.