W3C home > Mailing lists > Public > www-ws-desc@w3.org > April 2002

Re: Clarification on proposed requirement

From: Uche Ogbuji <uche.ogbuji@fourthought.com>
Date: Mon, 15 Apr 2002 11:33:48 -0600
Message-Id: <200204151733.g3FHXnA20809@localhost.localdomain>
To: "Eric Prud'hommeaux" <eric@w3.org>
cc: David Booth <dbooth@w3.org>, www-rdf-interest@w3.org, www-ws-desc@w3.org
> > As an interested outsider, I prefer the wording you suggest, David.
> > I think that requiring the name attributes of WSDL elements to be
> > unique would be sufficient.  I think it would be dangerous to fix on
> > a particular system for ensuring this, because, unfortunately, ID
> > attributes are in a bit of practical limbo these days.  Just making
> > this a normative clause in the WSDL spec should do the trick.
> I doubt that IDs are dead.

I didn't say they are dead, just that their status is in a practical limbo.  
The many tortured threads on how to fix this limbo on XML-DEV are ample fuel 
for this opinion.

An ID technically requires a DTD or XSD declaration, neither of which are so 
far required by WSDL.

> The notion of having a schema/DTD enforced
> document-wide unique identifier is central to many popular
> applications, including XHTML.

Yes.  And XHTML requires DTD for this many reason (among others), and Ann 
Navarro of the XHTML WG recently sent a message on XML-DEV affirming that 
XHTML will have this dependence for a while.  I don't know that you want to 
require doctype declaration or schema location specification on WSDL 
documents, which previously did not have this restriction.

> Whatever recommendation eventually
> addreses this functionality will need to address XML 1.1 IDs. I would
> like to use IDs so that our definitions addressed by such a
> recommendation.

But you have to say exactly what IDs you mean.  DTD?  XSD?

Uche Ogbuji                   Principal Consultant     Fourthought, Inc.
uche.ogbuji@fourthought.com   http://Fourthought.com   +1 720 320 2046
XML strategy, XML tools (http://4Suite.org), knowledge management
Track chair, XML/Web Services One (San Jose, Boston): 
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Received on Monday, 15 April 2002 13:34:17 UTC

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