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Re: [ij@w3.org: Proposed TAG Finding: Internet Media Type registration, consistency of use] (fwd)

From: Graham Klyne <Graham.Klyne@MIMEsweeper.com>
Date: Wed, 22 May 2002 09:25:22 +0100
Message-Id: <>
To: Dan Brickley <danbri@w3.org>
Cc: <w3c-rdfcore-wg@w3.org>

I agree with your "gut feel".  At the level of description provided by MIME 
content-types, I think that all RDF "languages" are effectively the 
same.  Indeed, I think it should/will be the norm that different schema are 
mixed in a single document, and any processing rules implied by the MIME 
type should not vary based on the schema employed.

The situation is different if languages layered on RDF have syntactic as 
well as schema extensions (or other fundamental extensions that go beyond 
the RDFcore language):  e.g. DAML and its collection syntax.  In these 
cases, I think there is probably some need for a separate MIME type.


At 09:07 PM 5/21/02 -0400, Dan Brickley wrote:

>Excuse the crosspost (RDFCore WG and SemWeb Coordination Group). Please
>direct followups to one of these lists.
>The TAG are making decisions about media type registration that affect W3C
>WGs who are defining 'languages'. We might want to consider whether RDF
>(RDFCore, RDFS, WebOnt, ...) is, for these purposes, one or several
>'languages'. We might also want to consider whether each new RDF Schema
>that a (working) group defines is a 'language' in the sense used in this
>TAG proposal. My gut reaction is that registering an Internet Media Type
>for each new RDF Schema would be counter-productive. RDF is designed for
>fine-grained mixing; Media Types are useful for course-grained dispatching
>based on content type. But I need to think about this some more...
>There isn't much time till their suggested closure date of May 28th. I'm
>not sure what the next sensible step is? Brian, EricM, DanC?
>---------- Forwarded message ----------
>Date: Tue, 21 May 2002 21:04:14 -0400
>From: Mark Baker <distobj@acm.org>
>To: xml-dist-app@w3.org
>Subject: [ij@w3.org: Proposed TAG Finding: Internet Media Type registration,
>      consistency  of use]
>Resent-Date: Tue, 21 May 2002 20:56:08 -0400 (EDT)
>Resent-From: xml-dist-app@w3.org
>This is primarily in response to our questions to the TAG.
>----- Forwarded message from "Ian B. Jacobs" <ij@w3.org> -----
>Message-ID: <3CEAA246.6060806@w3.org>
>Date: Tue, 21 May 2002 15:38:46 -0400
>From: "Ian B. Jacobs" <ij@w3.org>
>Organization: W3C
>User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) 
>Gecko/20020412 Debian/0.9.9-6
>MIME-Version: 1.0
>To: www-tag@w3.org
>Content-Type: text/plain; charset=us-ascii; format=flowed
>Content-Transfer-Encoding: 7bit
>Subject: Proposed TAG Finding: Internet Media Type registration, 
>consistency  of use
>X-Mailing-List: <www-tag@w3.org> archive/latest/1217
>Sender: www-tag-request@w3.org
>List-Id: <www-tag.w3.org>
>List-Help: <http://www.w3.org/Mail/>
>List-Unsubscribe: <mailto:www-tag-request@w3.org?subject=unsubscribe>
>On behalf of the TAG, I have published
>    "TAG Finding: Internet Media Type registration,
>     consistency of use" [1].
>The TAG invites people to review this finding. The TAG
>will consider this finding "accepted" unless there
>is substantial opposition expressed on this list
>prior to 28 May (say, end of day Boston time).
>Draft and accepted findings are available at
>the TAG's Web site [2].
>Thank you,
>   _Ian
>[1] http://www.w3.org/2001/tag/2002/0129-mime
>      Last modified: $Date: 2002/05/21 19:24:38 $ by
>      $Author: ijacobs $. $Revision: 1.24 $
>[2] http://www.w3.org/2001/tag/findings
>Ian Jacobs (ij@w3.org)   http://www.w3.org/People/Jacobs
>Tel:                     +1 718 260-9447
>----- End forwarded message -----
>Mark Baker, CTO, Idokorro Mobile (formerly Planetfred)
>Ottawa, Ontario, CANADA.               distobj@acm.org
>http://www.markbaker.ca       http://www.idokorro.com

Graham Klyne
Received on Wednesday, 22 May 2002 04:28:41 UTC

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