From mikeadouglass@gmail.com  Wed Aug  7 07:46:04 2013
Return-Path: <mikeadouglass@gmail.com>
X-Original-To: calsify@ietfa.amsl.com
Delivered-To: calsify@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1AF9721E8134; Wed,  7 Aug 2013 07:46:04 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.6
X-Spam-Level: 
X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, NO_RELAYS=-0.001]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VuylDjh3ZkUU; Wed,  7 Aug 2013 07:46:03 -0700 (PDT)
Received: from mail-ye0-x22d.google.com (mail-ye0-x22d.google.com [IPv6:2607:f8b0:4002:c04::22d]) by ietfa.amsl.com (Postfix) with ESMTP id 1A87711E8139; Wed,  7 Aug 2013 07:46:03 -0700 (PDT)
Received: by mail-ye0-f173.google.com with SMTP id m14so562118yen.32 for <multiple recipients>; Wed, 07 Aug 2013 07:46:02 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=zv8xgcHIIw4mIZX373KvJpdJ9AiOWTZ+3aqSQ25Bkmw=; b=irYN+baZvPT/mRuswqsn5hEzIwrEMwBV31Xks1NjAE5FFSoZoJFrdP+z0tMOWctRTm uZzkQ2rsW1mv66P4gUrnV0vttydnUTRsXj08C9uvhbf7Z1ACetcM54+CUaH6y8zLBO/r QqnbX8qv71T7k1FPciqOutJK3itmeKyNrXgdir+jWE+tiRV0K2cxxxz+65Dh9W9B9J2L DIngBp6ymZ/Zet3OCNTECxvdNlNU/ML2rijXbKDJYnZwjuQfz2Tyro81MJLZXbNLRmkP Nmg9rTff0MF+FCvNM65B7nj4FAK1tIGpGJjZAYAvVxRUAuHcexyiXCsZPSwjVQnaZPEM FHrQ==
X-Received: by 10.236.179.135 with SMTP id h7mr2021370yhm.216.1375886762646; Wed, 07 Aug 2013 07:46:02 -0700 (PDT)
Received: from ?IPv6:2620:0:2820:2:d55e:5f9e:2c17:6d53? ([2620:0:2820:2:d55e:5f9e:2c17:6d53]) by mx.google.com with ESMTPSA id d68sm10018731yhk.7.2013.08.07.07.46.00 for <multiple recipients> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 07 Aug 2013 07:46:01 -0700 (PDT)
Message-ID: <52025DA8.4070407@gmail.com>
Date: Wed, 07 Aug 2013 10:46:00 -0400
From: Mike Douglass <mikeadouglass@gmail.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130404 Thunderbird/17.0.5
MIME-Version: 1.0
To: IETF Apps Discuss <apps-discuss@ietf.org>, IETF Calsify <calsify@ietf.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: [calsify] Resource type registry
X-BeenThere: calsify@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: <calsify.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/calsify>, <mailto:calsify-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/calsify>
List-Post: <mailto:calsify@ietf.org>
List-Help: <mailto:calsify-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/calsify>, <mailto:calsify-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 07 Aug 2013 14:46:04 -0000

In a couple of CalConnect technical committees we are working on 
specifying extensions to RFC5545,

https://datatracker.ietf.org/doc/draft-douglass-calendar-extension/
and an upcoming extension for tasks:

and have identified a need for some sort of resource type registry along 
the lines of the location registry defined by RFC4589.

https://datatracker.ietf.org/doc/rfc4589/

It seems that somewhere there might to be such a registry but we have 
been unable to locate one. Does anybody know of such a registry that 
could be used and has the right characteristics (unencumbered, 
extensible)? Or should we go ahead and define such a registry along the 
lines of 4589 and seed it with what we consider useful values?