Re: Review of FPWD Conneg-by-ap

Hi Karen,

Yes, please just branch the doc and apply edits to the branch. We won’t merge that branch into the public copy while a FPWD is frozen but we can all treat the branch/branches as live and keep pushing to it/them.

I will add Antoine’s email edits to such a branch ASAP.

Thanks,

Nick

Nicholas Car
Senior Experimental Scientist
CSIRO Land & Water
E nicholas.car@csiro.au<mailto:nicholas.car@csiro.au> M 0477 560 177<tel:0477%20560%20177> P 07 3833 5632
Dutton Park, QLD, Australia

On 13 Nov 2018, at 1:10 pm, Karen Coyle <kcoyle@kcoyle.net<mailto:kcoyle@kcoyle.net>> wrote:

I have a significant number of editorial comments for the document -
many more than I would be able to write up and send in an email. I'm
wondering if it would make sense to fork a copy of the document where we
can put comments and suggestions but that wouldn't interfere with the
visible public draft. That would make it possible to do messy things
like add comments in the midst of text. Or do folks have other
suggestions for a best way to do this?

kc

On 11/12/18 6:00 PM, Car, Nicholas (L&W, Dutton Park) wrote:
Agree, thanks Antoine, really useful edits. Will work with Rob to
incorporate all and will create Issues/Pulls as appropriate to track
progress referring to your numbers below.



Nick





*From:*Rob Atkinson <rob@metalinkage.com.au<mailto:rob@metalinkage.com.au>>
*Sent:* Tuesday, 13 November 2018 10:22 AM
*To:* Antoine Isaac <aisaac@few.vu.nl<mailto:aisaac@few.vu.nl>>
*Cc:* Dataset Exchange Working Group <public-dxwg-wg@w3.org<mailto:public-dxwg-wg@w3.org>>
*Subject:* Re: Review of FPWD Conneg-by-ap





Thanks Antoine



this is great feedback - I dont see any fundamental disagreements but a
lot of very constructive suggestions for improving text.



I'll wait for plenary decisions tomorrow but FWIW I am willing to do an
editorial job to try to incorporate as much as I feel confident i can
improve and make sure issues are in place where something more
substantive is needed.  Or let someone else do this :-)



Rob











On Tue, 13 Nov 2018 at 08:37, Antoine Isaac <aisaac@few.vu.nl<mailto:aisaac@few.vu.nl>
<mailto:aisaac@few.vu.nl>> wrote:

   Dear Conneg-by-ap editors, all,

   As requested I've read https://w3c.github.io/dxwg/conneg-by-ap/

   (FPWD, dated November 8 2018).
   Here's a quick review of it.

   The summary: the document reads quite well (until the Appendices)
   and I don't see a major blocker. Honestly I feel uneasy about moving
   into FPWD a document for which major parts did not exist at the last
   F2F, 3 weeks ago. And there are some bits (especially for the QSA)
   that seem could have matured more before being included. Some of my
   issues are not editorial... But, in accordance with the mantra of
   publishing often, I clearly don't feel like objecting to this FPWD
   publication.
   The level of quality seems high enough, even if I hope you can
   address some of my comments before releasing it ;-)

   My comments follow below. I have not created github issues, partly
   because I didn't have the time and partly because there might
   already be issues created for these issues (there was at least one,
   which I've re-opened).
   I've tried to number my comments in case one wants to refer to them
   in later emails. They sometimes align with section numbers, but it's
   not on purpose :-)

   Note that there is one matter which I think should stand out: it's
   #15, on compatibility with Linked Data conneg.

   I hope this helps,

   Antoine

   =============

   1. Abstract
   The two last paragraphs ("For details about what a profile is, see
   the [PROF-GUIDE] [...]" and "For the formal ontology describing
   profiles, [...]") are clearly not abstract-level material.

   2. Introduction (section 1)
   "Thus, resources available in different languages" wrongly uses
   "thus". There's no direct logical implication between Media Type
   considerations and Language ones.

   3. Motivation (3)
   To me this section could be merged with the introduction. There's
   quite a bit of overlap, and I think putting the motivation early in
   documents always help.
   I've re-opened https://github.com/w3c/dxwg/issues/379


   4. Related Work content (4)
   "What a profile is and how to create one is detailed in the
   [PROF-GUIDE] document [...]",
   "Issue 380: Remove text in favour of full reference to final IETF
   doc [...]" and
   "Describing the parts of profiles and their relation to other
   profiles is done within the Profiles Ontology"
   are not related work material to me. They're rather about explaining
   our current (pieces of) work, and therefore seem a better fit for
   the intro.

   5. Abstract Model/Context (5.1)
   The paragraph that includes "For this reason, other than a directive
   to maintain independence, no further discussion of negotiation by
   profile and this relations to other forms of negotiation are given"
   reads strange in the flow of other paragraphs. It doesn't read like
   context, in fact.

   6. Abstract Model/Context (5.1)
   The paragraph starting with "A client requesting the representation
   of a resource conforming to a profile MUST identify the resource"
   clearly doesn't read like a piece of context, as it gives normative
   instructions.

   7. Abstract Model/Context (5.1)
   The sentence "In this abstract model, we don't assume any specifics
   about client, server, resource, metadata, request or response" reads
   strange as definitions have been given earlier about these notions.
   So there is a form of assumption going on.

   8. Abstract Model/Requests and Responses (5.2)
   I don't get why there's such a long introduction to 5.2. Not only
   this is long, but it results in splitting information that would be
   easier to understand if it was kept together in each of the
   subsections. For example it's strange to have 5.2.2 not saying what
   the server should do (this info is only in the intro).

   9. Abstract Model/Requests and Responses (5.2)
   "a server responds the list of profile tokens it is able to deliver
   resource representations conforming to and their mapping to profile
   URIs" is quite hard a sentence to swallow. Maybe adding a bit of
   punctuation and/or a conjunction would help.

   10. Abstract Model/Requests and Response (5.2.1)
   "The list profiles request MAY be an independent request or part of
   another realization's request". I'm not sure this requires such
   emphasis (the 'MAY'); it doesn't strike me as spec-level, compared
   to the paragraph just after.

   11. Abstract Model/preferences (5.2 and 6.1)
   5.2.2 mentions that preferences are expressed in 'some form of list
   ordering'. This is a bit different from the quality indicators from
   6.1.2. And (a question real question at the same time as a possible
   example of issue:) can q values have ties?

   12. Abstract Model/tokens (5.2.3)
   Typo on 'refere'.

   13. HTTP intro (6.1)
   "namely media type (Accept/Content-Type), encoding
   (Accept-Encoding/Content-Encoding) and language
   (Accept-Language/Content-Language)" could be in the introduction
   instead (where these precise formulations of the 'other' accept
   headers are not quite there.

   14. HTTP OPTIONS (6.1.1)
   It is strange to find this section first in 6.1 while (according to
   the wording of issue 510) OPTIONS is not recommended practice.

   15. Compatibility of examples with Linked Data conneg (6.1.1 and 6.1.2)
   Examples 2 and 3 are at odds with the conneg recipes derived from
   Http-range-14. In RDF statements, the 'most interesting' URIs are
   URIs of non-information resources. These non-information resources
   are expected to first be de-referenced to the URI of a
   representation via a 303-redirect. That URI is then served with a 200.
   There are of course cases where the pattern of examples 2 and 3 will
   be the right one. But now the text really says that the simple 200
   pattern is the one expected ("a request/response pair would look as
   follows").
   At least, there should be a prominent note/issue saying that there
   are other content negotiation patterns. Ideally, an example with
   303-redirect would be introduced - or perhaps even replace the
   simple 200 one.

   16. QSA - motivation (6.2)
   In the end, QSA requires a lot of rather subtle instructions and
   text, but there is little motivation for it in the draft. I'm ready
   to accept that we have some cases and requirements somewhere, but
   they are not rendered. Or if they are, they should be more
   prominently advertised, as I've missed them :-/ .

   17. QSA - level of specification (6.2)
   The wording around what the draft recommends on QSA is quite confusing.
   In the intro of 6.2 the sentence
   "this realization is fully specified here and this document is
   considered normative for the QSA realization."
   seems to contradict the one that follows it:
   "This realization does not preclude other QSA specifications for
   profile and content negotiation"
   I think I understand where the draft wants to go, in fact. But then
   I really feel uneasy when I read rather strong recommendations like
   "The QSA key/value pair _profile=list SHOULD be used" in 6.2.1.

   18. QSA - mention of mediatype (6.2)
   "In this realization, _profile and _mediatype are used to
   indicate[...]" hints that media type is a key aspect of the
   realization. I guess it's not. I mean, I'm not sure why a spec about
   getting profile-specific representation would blur the picture by
   also discussing media types quite extensively.

   19. QSA - example 7
   I'm struggling to see why example 7 ("GET
   /a/resource?_profile=aaa,bbb,ccc HTTP/1.1") is about "Requesting a
   list of profiles for a resource by QSA in HTML"


--
Karen Coyle
kcoyle@kcoyle.net<mailto:kcoyle@kcoyle.net> http://kcoyle.net

m: 1-510-435-8234 (Signal)
skype: kcoylenet/+1-510-984-3600

Received on Tuesday, 13 November 2018 03:43:44 UTC