[wot-discovery] minutes - 6 April 2020

available at:
  https://www.w3.org/2020/04/06-wot-discovery-minutes.html

also as text below.

Thanks,

Kazuyuki

---
   [1]W3C

      [1] http://www.w3.org/

                               - DRAFT -

                             WoT Discovery

06 Apr 2020

   [2]Agenda

      [2] https://www.w3.org/WoT/IG/wiki/WG_WoT_Discovery_WebConf#6_Apr_2020

Attendees

   Present
          Kaz_Ashimura, Kevin_Olotu, Michael_McCool,
          Kunihiko_Toumura, Christian_Glomb, Andrea_Cimmino,
          Zoltan_Kis, Tomoaki_Mizushima

   Regrets

   Chair
          McCool

   Scribe
          kaz

Contents

     * [3]Topics
         1. [4]Guests
         2. [5]Previous minutes
         3. [6]Meeting schedule
         4. [7]2 Phase model
         5. [8]Prev minutes (revisited)
         6. [9]PRs and Issues
         7. [10]Issues
     * [11]Summary of Action Items
     * [12]Summary of Resolutions
     __________________________________________________________

Guests

   McCool: only one guest for today, Kevin Olotu from Bosch
   ... any objections?

   (none)

   McCool: so would accept his participation

   <McCool> Bosch, Kevin Olotu

Previous minutes

   <McCool>
   [13]https://www.w3.org/2020/03/30-wot-discovery-minutes.html

     [13] https://www.w3.org/2020/03/30-wot-discovery-minutes.html

   McCool: (goes through the minutes)
   ... pull request 4
   ... use cases
   ... issue 7
   ... and new issue about Vorto, etc.
   ... decision of acceptance after Christian is back

Meeting schedule

   McCool: cancel the nect week meeting due to Easter

2 Phase model

   McCool: maybe we should have some discussion, Toumura-san?

   Toumura: ok

Prev minutes (revisited)

   McCool: any objections to accept them?

   (none)

   McCool: accepted then

PRs and Issues

   [14]PR 12

     [14] https://github.com/w3c/wot-discovery/pull/12

   McCool: assigned myself to this
   ... Intel guys are interested
   ... but it may extend the Charter though it's an interested
   topic
   ... anybody want to make a case?
   ... within the WoT discovery scope?

   [15]changes

     [15] https://github.com/w3c/wot-discovery/pull/12/files

   McCool: (goes through the changes)
   ... objections to merge this?

   Zoltan: usually different protocols for different discovery
   mechanisms

   McCool: don't want to search over all the possibiities

   Zoltan: it's not a discovery use case to be strict
   ... not for the scope of discovery

   McCool: may raise big implementation limitation

   Zoltan: agree

   McCool: any other comments?... can merge this PR itself, and
   can have further discussion based on that
   ... (merges PR 12)

   [16]PR 15

     [16] https://github.com/w3c/wot-discovery/pull/15

   McCool: Kevin made a PR but Bosch is not a Member yet
   ... so we can't merge this PR...
   ... let's look into it to see if it's normative or informative
   ... this is public informative and just informative

   Kaz: this is not really a proposal for the spec but informative
   example from exisiting industry standards. right?

   McCool: right

   Kaz: so this is something like IETF ACE for wot-security

   McCool: right

   Kaz: in that case we can remove the title of "proposal" and add
   "this section is informative" instead
   ... but please let me check with Philippe and Wendy to make
   sure

   McCool: ok
   ... also would like to suggest we add some note
   ... (adds a comment to the PR)

   [17]McCool's comment

     [17] https://github.com/w3c/wot-discovery/pull/15/files#r404134676

   McCool: tx for writing this up, Kevin!
   ... leave this PR as is until Kaz's getting clarification

Issues

   McCool: need to go through the issues

   [18]Issue 5

     [18] https://github.com/w3c/wot-discovery/issues/5

   McCool: have we discussed this?

   Toumura: not yet
   ... this is Suzuki-san's trial implementation for 2-phase model
   ... he wanted to try this for the PlugFest

   McCool: ok
   ... seems he used mDNS and DNS-SD
   ... also directories service by Mongo DB

   Toumura: note that my first sequence diagram at
   [19]https://github.com/w3c/wot-discovery/issues/5#issuecomment-
   598700491 is not correct
   ... please see the second one at
   [20]https://github.com/w3c/wot-discovery/issues/5#issuecomment-
   599392658

     [19] https://github.com/w3c/wot-discovery/issues/5#issuecomment-598700491
     [20] https://github.com/w3c/wot-discovery/issues/5#issuecomment-599392658

   McCool: we should include discussion of alternative DN-based
   approache
   ... for exaple the approach decribed in issue 5
   ... (adds that comment to Issue 11)

   [21]McCool's comment on Issue 11

     [21] https://github.com/w3c/wot-discovery/issues/11#issuecomment-609834084

   Toumura: we can assume that authentication could be done on the
   network level?

   McCool: might be too dangerous
   ... may need device authentication even with VPN setting
   ... let's discuss that later
   ... anyway Suzuki-san genrated Issue 5, and this point should
   be captured within the official document

   Toumura: agree

   McCool: (adds a comment to issue 5)
   ... can this (issue 5) be captured and put into an MD file and
   submitted to the repo?
   ... that way we are use what the current, "correct" description
   is

   Toumura: can ask him to generate a MD

   [22]Issue 14

     [22] https://github.com/w3c/wot-discovery/issues/14

   McCool: didn't get any comments so far
   ... can capture your comments now :)
   ... pros: integrate with systems and ecosystems that already
   support other metadata formats, e.g., OpenAPI
   ... cons: implementation complexity, interoperability downsde
   ... dont know in advance whta formats are supported
   ... any other comments?

   Zoltan: interoperability with directory service?
   ... what would be the use cae for that?

   McCool: we need to focus on supporting W3C standards
   ... if a service already exists to support other formats that
   can remain and be used as needed, whether or nt they share
   backends is an impleentation issue and need not be visible at
   the network API level
   ... any other comments?
   ... I myself don't have any opinion
   ... would like to ask the group for opinions

   Zoltan: let's do some simple use cases first

   McCool: ok
   ... (generates proposed resolution)

   <McCool> proposal: (regarding issue 14) - a WoT discovery
   service should support only WoT TDs. Content negotiation, if
   supported, should only be used to select between different
   versions of TDs (when there is more than one...)

   McCool: any objections?

   (none)

   RESOLUTION: (regarding issue 14) - a WoT discovery service
   should support only WoT TDs. Content negotiation, if supported,
   should only be used to select between different versions of TDs
   (when there is more than one...)

   McCool: (and adds the above resolution to Issue 14)
   ... that's it
   ... aob?

   (none)

   [adjourned]

Summary of Action Items

Summary of Resolutions

    1. [23](regarding issue 14) - a WoT discovery service should
       support only WoT TDs. Content negotiation, if supported,
       should only be used to select between different versions of
       TDs (when there is more than one...)

   [End of minutes]
     __________________________________________________________


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Received on Sunday, 26 April 2020 16:05:11 UTC