from RFC 2396:
A URI is "a compact string of characters for identifying an abstract or
physical resource".
"A URI can be further classified as a locator, a name, or both.
The term "Uniform Resource Locator" (URL) refers to the subset of URI that
identify resources via a representation of their primary access mechanism
(e.g., their network "location"), rather than identifying
the resource by name or by some other attribute(s) of that resource.
The term "Uniform Resource Name" (URN) refers to the subset of URI that are
required to remain globally unique and persistent even when the resource
ceases to exist or becomes unavailable."
so, in short, all URLs are URIs, but not all URIs are URLs...
(for further reading enjoyment check out
http://www.ietf.org/rfc/rfc2396.txt)
-----Original Message-----
From: Milt Epstein <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Thursday, January 27, 2000 4:57 PM
Subject: Re: URI versus URL
>On Wed, 26 Jan 2000, Maxime Poulin wrote:
>
>> Hi all,
>>
>> I've been seeing in some servlet books the term URI which
>> was not to be misinterpreted as URL... Could someone explain me what
>> is a URI, and the difference between a URI and a URL ?
>
>Reading the comments in the JSDK source files (or their javadocs), it
>looks like the way they use it, URL is the entire thing with scheme,
>server, and port, while URI is only the stuff after that.
>
>IIRC, "URL" is "Uniform Resource Locator". Not sure what the 'I' in
>"URI" is.
>
>Milt Epstein
>Research Programmer
>Software/Systems Development Group
>Computing and Communications Services Office (CCSO)
>University of Illinois at Urbana-Champaign (UIUC)
>[EMAIL PROTECTED]
>
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