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

Web Resource Identity

  • From: David Megginson <david@m...>
  • To: Paul Prescod <paul@p...>
  • Date: Fri, 28 May 1999 12:59:35 -0400 (EDT)

Web Resource Identity
Paul Prescod writes:

 > In the HyTime and object oriented worlds, I believe that the
 > defining characteristic of things with identity is that you can
 > take two references and determine if they refer to the same object.

But you cannot always take two references and determine if they do
*not* refer to the same object -- that depends on the design.

 > I do not see how to do this on the Web. Consider the following URLs:
 > 
 > http://www.mitre.org/index.html
 > http://www.mitre.org/
 > http://www.mitre.org
 > 
 > Do they refer to the same resource? Let's try the answer both ways:

You left out the Scotch verdict, "not proven".

[snip]

 > I believe that the Web needs a concept of a canonical URL, if it doesn't
 > already have one. Retrieving a document or the HEAD for the document
 > should describe the canonical URL. I wouldn't mind if the canonical URL
 > was a totally unreadable UUID as long as I can take two URLs and figure
 > out whether they refer to two things that happen to have the same content
 > or actually refer to the SAME THING.

Sounds like a simple enough extension to HTTP.


All the best,


David

-- 
David Megginson                 david@m...
           http://www.megginson.com/

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i...
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo@i... the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@i... the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@i...)



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.