[secdir] [new-work] WG Review: Calendaring Extensions (calext)

IETF Secretariat <ietf-secretariat@ietf.org> Mon, 11 August 2014 15:33 UTC

Return-Path: <new-work-bounces@ietf.org>
X-Original-To: secdir@ietf.org
Delivered-To: secdir@ietfa.amsl.com
Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 7AD8B1A064E; Mon, 11 Aug 2014 08:33:45 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ietf.org; s=ietf1; t=1407771225; bh=9G+yKf9zHO5fGdHLCV1RSgqBFFLuiAxYg094wl+hnn8=; h=MIME-Version:From:To:Message-ID:Date:Subject:Reply-To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Content-Type:Content-Transfer-Encoding:Sender; b=LZEO9IzQdWsNuVUb/Wxuu5LY9hh+jy9aMjKgsY75OzHNvkw0jZiLqR0FMkxhjiP0X K1+NYvCK3ubMsxtG/XfD6G0h3Ih7iSbttTOLTxXpsFJGH4jAf+utgxl6+lPvnNih+1 6ro1xchskOWI8GlM/PlT2W6OIBs11qZx3OfmynlU=
X-Original-To: new-work@ietfa.amsl.com
Delivered-To: new-work@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 89CAE1B2C54; Fri, 8 Aug 2014 09:12:50 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GT48OndCsbFX; Fri, 8 Aug 2014 09:12:48 -0700 (PDT)
Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 2AF9E1B2C50; Fri, 8 Aug 2014 09:12:48 -0700 (PDT)
MIME-Version: 1.0
From: IETF Secretariat <ietf-secretariat@ietf.org>
To: new-work@ietf.org
X-Test-IDTracker: no
X-IETF-IDTracker: 5.6.2.p5
Auto-Submitted: auto-generated
Precedence: bulk
Message-ID: <20140808161248.11324.98279.idtracker@ietfa.amsl.com>
Date: Fri, 08 Aug 2014 09:12:48 -0700
Archived-At: http://mailarchive.ietf.org/arch/msg/new-work/uzyMBx9eYQIBwMev-rawBdaRfX4
X-Mailman-Approved-At: Mon, 11 Aug 2014 08:33:44 -0700
X-BeenThere: new-work@ietf.org
X-Mailman-Version: 2.1.15
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: new-work-bounces@ietf.org
Sender: "new-work" <new-work-bounces@ietf.org>
Archived-At: http://mailarchive.ietf.org/arch/msg/secdir/hJP2BY3rJN0ZKIoYLW72KM2oRqY
X-Mailman-Approved-At: Mon, 11 Aug 2014 09:06:14 -0700
Subject: [secdir] [new-work] WG Review: Calendaring Extensions (calext)
X-BeenThere: secdir@ietf.org
Reply-To: iesg@ietf.org
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/secdir>, <mailto:secdir-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/secdir/>
List-Post: <mailto:secdir@ietf.org>
List-Help: <mailto:secdir-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/secdir>, <mailto:secdir-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 11 Aug 2014 15:33:45 -0000

A new IETF working group has been proposed in the Applications Area. The
IESG has not made any determination yet. The following draft charter was
submitted, and is provided for informational purposes only. Please send
your comments to the IESG mailing list (iesg at ietf.org) by 2014-08-18.

Calendaring Extensions (calext)
------------------------------------------------
Current Status: Proposed WG

Assigned Area Director:
  Barry Leiba <barryleiba@computer.org>

Mailing list
  Address: calsify@ietf.org
  To Subscribe: http://www.ietf.org/mailman/listinfo/calsify
  Archive: http://www.ietf.org/mail-archive/web/calsify/

Charter:

Calendaring Extensions (calext)

-----------------------------------------------------------

The Calendaring Extensions working group is chartered to develop
extensions to the iCalendar (RFC 5545), iTIP (RFC 5546), and
CalDAV (RFC 4791) standards.

This working group will do the following:

- Develop an extension to iCalendar to support non-Gregorian recurrence
rules, without the need to support new calendar scale values in
iCalendar as a whole. This will allow for easy implementation of the
primary use case for non-Gregorian support in calendar systems, without
the need for significant changes to the iCalendar format. The
non-Gregorian calendar system should be based on the International
Components for Unicode work by the Unicode Consortium
(http://site.icu-project.org).

- Develop an extension to iCalendar to support a new component type that
allows users to express arbitrary, possibly repeating, periods of
"available" time. The primary use case for this is for users to express
their "office hours" (e.g., Monday-Friday, 9am-5pm) in a standard way to
ensure free busy lookups show the correct periods of availability.

- Define a set of new iCalendar properties and parameters to standardise
some existing experimental X- properties. This will include a new set of
"top-level" properties for the "CALENDAR" component, as well as an new
"IMAGE" property to allow users more control of the visual appearance of
events and tasks within their calendars.

The working group will work under the following parameters:

- The extensions developed are expected to be backwards-compatible with
the existing calendar standards.  Incompatibilities must be identified,
minimized, and justified.

- For each set of extensions, examine their impact on the iTIP protocol
(RFC 5546), and define any necessary extensions to iTIP to accommodate
such impact.

- For each set of extensions, examine their impact on the CalDAV
protocol (RFC 4791), and define any necessary extensions to CalDAV to
accommodate such impact.

The working group will use the following drafts as initial input for its
work: 
draft-daboo-icalendar-rscale-03
draft-daboo-calendar-availability-05
draft-daboo-icalendar-extensions-08

The following are out of scope for the working group:

- Any change that significantly impacts backwards compatibility with
existing deployed iCalendar/iTIP/CalDAV clients and servers.

- Any attempt to develop non-Gregorian calendar systems/calculations.

Milestones:

TBD

_______________________________________________
new-work mailing list
new-work@ietf.org
https://www.ietf.org/mailman/listinfo/new-work