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[wot-ig/wg] minutes - 16 January 2019

From: Kazuyuki Ashimura <ashimura@w3.org>
Date: Mon, 21 Jan 2019 13:30:39 +0900
Message-ID: <CAJ8iq9WBa0YF4RmwE3zrMsKsRxtcg4CNO-MkLsH6CyWKKhn+rg@mail.gmail.com>
To: Public Web of Things IG <public-wot-ig@w3.org>, public-wot-wg@w3.org
available at:

also as text below.

Thanks a lot for taking these minutes, Zoltan!




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

                               - DRAFT -


16 Jan 2019


      [2] https://www.w3.org/WoT/IG/wiki/Main_WoT_WebConf#Agenda


          Kaz_Ashimura, Michael_McCool, Dave_Raggett,
          Michael_Koster, Taki_Kamiya, Tetsushi_Matsuda,
          Tomoaki_Mizushima, Toru_Kawaguchi, Zoltan_Kis,
          Sebastian_Kaebisch, Kunihiko_Toumura, Yosuke_Nakamura



          zolkis, kaz


     * [3]Topics
         1. [4]Workshop updates
         2. [5]architecture
         3. [6]one data model (brought up by M. Koster)
         4. [7]Liaisons
         5. [8]F2F
         6. [9]TD report
         7. [10]Testfest
         8. [11]scripting
     * [12]Summary of Action Items
     * [13]Summary of Resolutions


     [14] https://www.w3.org/WoT/IG/wiki/Main_WoT_WebConf#16_Jan_2019

   <kaz> scribenick: zolkis

Workshop updates

   <kaz> [15]draft Call for Participation page

     [15] https://w3c.github.io/wot/workshop/ws2/cfp.html

   McCool: update about the workshop

   Sebastian: gives the workshop details
   ... contributions are welcome: diagrams, slides

   McCool: do we have a f2f session to discuss the CFP?

   Sebastian: there is an initial draft


   <kaz> [16]current architecture draft

     [16] https://w3c.github.io/wot-architecture/

   Lagally: we had a meeting recently, discussing the architecture
   draft, improvements needed
   ... Panasonic has proposals for requirements, Oracle has
   proposals for new use cases
   ... deadline next week for further input
   ... this is for the first round of changes
   ... new proposals for smart cities and smart buildings
   ... target is mid-March for a new draft with aligned input
   ... the terminology section will also be improved

   Lagally: next merge is next week Wednesday, so please make PR's
   until then
   ... making clear that in a new PR create a new section and put
   your name as comment

one data model (brought up by M. Koster)

   Koster: the one data model came out from a meeting with Zigbee
   ... there are a lot of device types (battery operated, etc)
   ... last meetup was last November, got a big attendance
   ... there was a prioritization discussion, common data model
   was important
   ... OCF intentions are neutral
   ... the target is a common data model, normalization, etc,
   similar to the early WoT discussions
   ... there is a questions about scope: cloud, device, gateway,
   home, etc
   ... Google wants to prioritize device to device communications
   ... there are many viewpoints
   ... candidates for model considerations include Zigbee, OCF,
   BLE Mesh, Weave, HomeKit etc
   ... criteria include maturity, extensibility, existing
   deployments, number of device types covered etc
   ... should explain to this group what WoT is doing

   McCool: we should figure out whom to talk with and when

   Koster: we should allow them figure out what should be their
   data model

   McCool: right, we are standardizing how to describe data
   models, not what data models should be
   ... we need to discuss this during the F2F, let's create a slot
   for this

   Koster: we should summarize what are the best qualities of the
   models, and figure out common serializations
   ... Google wants something higher level and with more
   ... others want simple things
   ... see also iot.schema.org


   McCool: ITU sent material about smart cities; will reflect

   <kaz> [17]ITU-T liaison letter (member-only)

     [17] https://lists.w3.org/Archives/Member/member-wot-ig/2019Jan/0000.html

   McCool: next TPAC 16-20 September 2019, Fukuoka, Japan


   <sebastian> [18]f2f wiki

     [18] https://www.w3.org/WoT/IG/wiki/F2F_meeting,_28_January-2_February_2019,_Princeton,_NJ,_USA

   McCool: please do register even if attending remotely
   ... Open Day schedule needs discussion
   ... probably Matthias cannot make the F2F
   ... maybe Sebastian could do the introduction

   Sebastian: maybe Kajimoto-san could do it?
   ... but could be as a backup

   McCool: what's the fallback plan for NIST
   ... (National Institute of Standards and Technology)
   ... breakout sessions: each group should explain recent changes
   and schedule for completion
   ... will have implementation report after the test fest
   ... by next week WG meeting please update the sections

TD report

   <kaz> [19]latest TD draft

     [19] https://w3c.github.io/wot-thing-description/

   <kaz> [20]diff from the published WD

     [20] https://w3c.github.io/wot-thing-description/diff.html

   Sebastian: TD is updated from the issues
   ... move the defaults to the serialization part: finish this by
   ... there are small editorial stuff as well
   ... we consider adding two more editors: Michael McCool
   (security) and Victor Charpenay (model, ontology)

   McCool: any objections?

   no objections heard

   McCool: the group accepts this; thanks for the appreciation

   RESOLUTION: Michael McCool and Victor Charpenay added as
   editors to the Thing Description spec

   Sebastian: please check the TD spec and report bugs

   Ege: will update JSON schema part

   MCCool: validation procedures and tooling will be discussed in
   the next hour
   ... test plan will be discussed

   Kaz: concerned about the big changes in the current updated
   ... of the TD spec
   ... the change is quite big from implementation PoV

   Sebastian: this comes from the Lyon F2F, JSON-LD 1.1 compliance
   was not clarified
   ... we cannot really make the statement we'd be compatible with
   JSON-LD 1.1, since there are open issues
   ... so we try to be close to JSON-LD 1.1, but we cannot say we
   are compatible
   ... we make the JSON-LD transformation explained in section 6

   Kaz: if the JSON-LD 1.1 becomes stable enough then we can refer
   to it; perhaps we should ask W3C management's advice

   Sebastian: we could only say the TD is close to JSON-LD 1.1
   ... Victor will take care of tracking this and updating the TD

   McCool: let's track this in an issue

   Kaz: I think I myself can understand the situation, but would
   like feedback from implementors and advice from W3C management


   McCool: any input on test fest?

   Koster: will attend the meeting and will update

   McCool: what are the gaps
   ... for instance security schemes etc
   ... just use as many features as we can and try to identify the
   ... expect node-wot fully documented
   ... other requirements? please edit the F2F page


   <inserted> scribenick: kaz

   Zoltan: something on scripting
   ... Daniel is not available, so won't put the proposal today

   <zolkis> issue #158:

     [21] https://github.com/w3c/wot-scripting-api/issues/158

   Zoltan: but there is a discussion on issue 158 as above
   ... the current spec is not good for browser-based
   ... during the scripting call, we had discussions
   ... still waiting for input


     [22] https://gist.github.com/zolkis/555441aebe1874392a00be50a8228f91

   Zoltan: maybe we can have discussion during the f2f as well
   ... would like to get advice from W3C management about API
   ... browser vs runtime

   McCool: let's make this an agenda item for the next meeting
   ... would prioritize this topic next week

   <inserted> scribenick: zolkis

   McCool: let's talk about this next week
   ... and on the F2F
   ... we are over time, need to switch to next call

   meeting adjourned

Summary of Action Items

Summary of Resolutions

    1. [23]Michael McCool and Victor Charpenay added as editors to
       the Thing Description spec

   [End of minutes]

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Received on Monday, 21 January 2019 04:31:41 UTC

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