[Gen-art] Gen-ART Last Call review of draft-adid-urn-01

Brian E Carpenter <brian.e.carpenter@gmail.com> Thu, 24 November 2016 01:00 UTC

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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
To: draft-adid-urn.all@ietf.org, General Area Review Team <gen-art@ietf.org>
Organization: University of Auckland
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Date: Thu, 24 Nov 2016 14:00:04 +1300
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Subject: [Gen-art] Gen-ART Last Call review of draft-adid-urn-01
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I am the assigned Gen-ART reviewer for this draft. The General Area
Review Team (Gen-ART) reviews all IETF documents being processed
by the IESG for the IETF Chair.  Please treat these comments just
like any other last call comments.

For more information, please see the FAQ at

Document: draft-adid-urn-01.txt
Reviewer: Brian Carpenter
Review Date: 2016-11-24
IETF LC End Date: 2016-12-19
IESG Telechat date:

Summary: Almost ready


I looked in vain for a shepherd's writeup or even a shepherd. I have no idea whether
this draft has gone through adequate expert review, and I am certainly not an expert.

Major Issues:

This is an informative document that states "Ad-ID is the industry standard..." but doesn't
provide a clear normative reference to an industry standard at that point. I assume that
would be [SMPTERP2092-1]. If so it should be referenced right there. Unfortunately it's
behind a pay wall (http://ieeexplore.ieee.org/document/7291518/). The IESG needs to confirm
whether that's acceptable.

>   An Ad-ID Identifier consists of a unique eleven character string
>   or a unique twelve character string (video codes only).

What's a "character"? ASCII or UTF-8?

The informative reference [Ad-ID-INTRO] doesn't seem to know whether it's a technical
appendix or a reference, and the URL that it cites is unhelpful. The material at
http://www.ad-id.org/how-it-works/ad-id-structure seems to be what is needed but
partly duplicates what is in the draft. Maybe this material is only given here because
the actual SMPTE standard costs more than $100? If so, I think it should be clearly
labelled as informational material and that only the SMPTE document is definitive.