Re: [core] Review of draft-ietf-core-multipart-ct-02

Klaus Hartke <hartke@projectcool.de> Wed, 07 November 2018 12:27 UTC

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From: Klaus Hartke <hartke@projectcool.de>
Date: Wed, 7 Nov 2018 13:26:19 +0100
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To: "Fossati, Thomas (Nokia - GB/Cambridge)" <thomas.fossati@nokia.com>
Cc: Carsten Bormann <cabo@tzi.org>, "core@ietf.org WG" <core@ietf.org>
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Subject: Re: [core] Review of draft-ietf-core-multipart-ct-02
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I think the draft needs to be much clearer on whether a multipart
collection is an unordered multiset of representations (which I had
assumed so far) or an ordered sequence where applications attach
additional out-of-band meaning to the positions.

Speaking of additional out-of-band meaning, I wonder if there should
be identifiers in the collection explicitly describing the semantics
in the interest of self-description. There are also considerations
related to evolving the out-of-band information, such as when an
application wants to change the meaning of a position but continue
using the "application/multipart-core" content format ID.

Klaus