W3C home > Mailing lists > Public > uri@w3.org > September 2001

Re: Excess URI schemes considered harmful

From: Graham Klyne <GK@ninebynine.org>
Date: Tue, 25 Sep 2001 21:27:58 +0100
Message-Id: <>
To: Michael Mealling <michael@neonym.net>
Cc: Mark Baker <distobj@acm.org>, robla@real.com, uri@w3.org
At 12:32 PM 9/25/01 -0400, Michael Mealling wrote:
>Are you sure it suffices? The IANA is no longer at that site and that
>URL will sease to function soon. If you want a permanent URI for that
>concept take a look at these two documents:
>the last one being the one you want...

Er, actually, the last one provides a URI identifer for the "Content-type" 
amnd other message headers, but doesn't provide URIs for Content-type 
values -- this proposal is aimed at being able to convey message metadata 
in formats like RDF.  For an example of anticipated use, see 

However, this does illustrate the basic idea:  values in an existing 
registry or framework of definition can be mapped into URI space;  it would 
be easy enough to do this for basic Content-type values.

(However, I understand that there are some additional requirements that the 
cturi proposal aims to solve.  I don't see changing the URI scheme name to 
something that is part of an existing scheme would be an insuperable problem.)


Graham Klyne
Received on Tuesday, 25 September 2001 17:13:45 UTC

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