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

Re: URI indigestion


Re:  URI indigestion
"Bullard, Claude L (Len)" scripsit:

> So if the Public ID is used 
> in RDF for the Semantic Web, where does uniqueness 
> get conferred?

Public IDs that begin "IDN domain-name//" are as unique
as domains (which is to say, only during a given period of
time).  This is part of ISO 9070 on Formal Public Identifiers.

> Further, there is the issue that URIs designate 
> representations of resources and that these can 
> vary over time/space/authorial_intent, etc,. and 
> that this conflicts with the RDF requirement for 
> insisting that the URI uniquely identifies one 
> thing.

I hold that URIs designate resources.  The GET method
returns some representation of the resource, if one is
available. This is equally true of an URN  as of an URL.

> 1.  What is the one thing that it identifies 
>     for URIs?

Some resources don't have representations, the "thing
without a rep" trick notwithstanding.

> 2.  Are these resources (can only be one) or 
>     representations (can vary)?

Resources.

-- 
John Cowan   jcowan@r...   http://www.reutershealth.com
    "Mr. Lane, if you ever wish anything that I can do all you will have to do
        will be to send me a telegram asking and it will be done."
    "Mr. Hearst, if you ever get a telegram from me asking
        you to do anything you can put the telegram down as a forgery."

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.