[wot-architecture] minutes - 16 July 2020

available at:
  https://www.w3.org/2020/07/16-wot-arch-minutes.html

also as text below.

Thanks,

Kazuyuki

---
   [1]W3C

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

                               - DRAFT -

                            WoT-Architecture

16 Jul 2020

Attendees

   Present
          Call 1: Kaz_Ashimura, Michael_Lagally,
          Tomoaki_Mizushima, Ryuichi_Matsukura
          Call 2: Kaz_Ashimura, Michael_Lagally, Tomoaki_Mizushima

   Regrets
          Michael_McCool

   Chair
          Lagally

   Scribe
          kaz

Contents

     * [2]Topics
         1. [3]Call 1
              1. [4]Logistics
              2. [5]Prev minutes
              3. [6]vF2F minutes
              4. [7]MRs
              5. [8]Profiles
         2. [9]Call 2
     * [10]Summary of Action Items
     * [11]Summary of Resolutions
     __________________________________________________________

   <scribe> scribenick: kaz

Logistics

   Lagally: think we might want to change the time of the WoT
   Architecture call to get wider attendance
   ... opt1: 1 or 2 hours later
   ... opt2: merge with the 2nd call

   Kaz: can create a doodle poll

   Lagally: tx

Prev minutes

   [12]July-9

     [12] https://www.w3.org/2020/07/09-wot-arch-minutes.html

   Lagally: talked about profile
   ... would talk about it today as well
   ... will put the information on the summary slides to the MD
   files as well
   ... btw, Matsukura-san, we were discussing how to manage the
   Architecture call slot
   ... we'll create a doodle poll to see people's availability

   - Reschedule 1st architecture call (1-2 hours later)

   - Merge 1st call into 2nd one

   Matsukura: 1-2 hours later is OK but midnight would be too
   late...

   Lagally: ok
   ... go back to the minutes review
   ... any concerns?

   (none)

   approved

vF2F minutes

   [13]vF2F minutes

     [13] https://www.w3.org/2020/06/22-26-wot-vf2f-minutes.html#day3

   Lagally: (goes through the minutes)
   ... discussed profiles during the previous call as well
   ... was also nice to have Ben there during the vF2F
   ... had discussion use case importance and contributors
   ... any concerns?

   (none)

   Kaz: so we've confirmed the vF2F minutes are OK :)

MRs

   [14]MR 505

     [14] https://github.com/w3c/wot-architecture/pull/505

   [15]changes

     [15] https://github.com/w3c/wot-architecture/pull/505/files

   Matsukura: requirements for the agriculture use case

   

   Enable to respond to the requests from consumers instead of the
   original corresponding to the virtual device and being offline

   ]]

   Matsukura: same content with the actual device with a different
   IP address
   ... the idea is a shadow device

   Lagally: having the same property?

   Matsukura: right

   Lagally: what is the expected behavior?

   Matsukura: this function would be useful for sensor
   ... the proxy always responds to the users for the actual
   sensors
   ... since the actual devices might be suspended sometimes

   Lagally: ok
   ... so this is related to digital twin idea

   Matsukura: yes

   Kaz: maybe we should add notes on related ideas (like digital
   twin and device shadow) and basic need for energy consumption
   saving so that we can identify this use case is related to
   which category (horizontal use cases and vertical use cases)

   Lagally: ok
   ... and we should think about security portion as well

   Kaz: right

   Lagally: (adds comments on that)
   ... next states for things

   Matsukura: proxy has the information on the "actual state"

   Lagally: digital twin to handle the state automatically for the
   edge devices

   Matsukura: yes

   Kaz: based on the discussion so far, I think all these
   requirements assume a proxy who manages all the edge devices,
   sensors and actuators
   ... so we should mention that assumption here as well

   Lagally: ok
   ... (adds a comment on that)

   Matsukura: "intermediary" is defined in the WoT Architecture
   ... and that point (=proxy manager) would describe the concrete
   function for that

   Kaz: yeah, for the spec we intentionally used the abstract term
   "intermediary"
   ... and "proxy device which manages multiple edge devices" is a
   good use case for that
   ... regarding the definition on units
   ... the Automotive WG used to refer to the GENIVI resource
   ... but they're looking at new ontology definition
   ... also McCool was working on surveys about unit definitions

   Lagally: (adds comments)

Profiles

   [16]MR 16

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

   Lagally: would like to have volunteers :)

   [17]preview

     [17] https://pr-preview.s3.amazonaws.com/w3c/wot-profile/pull/16.html

   Lagally: section 4 (section 4.2 specifically) needs further
   discussion
   ... but would like to make the draft an initial starting point

   Kaz: yes, we always need something as the basis of the
   discussion :)

   <mlagally_> proposal: Use the current strawman document as the
   baseline for the Profile specification

   Lagally: any concerns?

   (none)

   all: agree

   RESOLUTION: Use the current strawman document as the baseline
   for the Profile specification

   [18]requirements for profiles

     [18] https://github.com/w3c/wot-profile/blob/master/REQUIREMENTS/requirements.md

   <mlagally_> proposal: Accepting the following requirements for
   the FPWD: Interoperability, Limit and reduce complexity,
   Eliminate ambiguities, Limit resource consumption, finite set
   of features and capabilities, follow security and privacy best
   practices subject to group feedback

   Kaz: do you mean we'll include the requirements description
   into the index.html?

   Lagally: no

   Kaz: so we'd like to consider the requirements.md as the basis
   of the index.html?

   Lagally: restricted topics within requirements.md to be the
   basis

   Kaz: ok
   ... so we'll consider the restricted list of requirements as
   the basis of the FPWD of the WoT Profiles document

   Lagally: right

   Matsukura: the WoT Profiles document would be very useful for
   PlugFest, etc.

   Lagally: ok with the proposal?

   all: ok

   RESOLUTION: Accepting the following requirements for the FPWD:
   Interoperability, Limit and reduce complexity, Eliminate
   ambiguities, Limit resource consumption, finite set of features
   and capabilities, follow security and privacy best practices
   subject to group feedback

   Lagally: will check with people during the 2nd call as well
   ... (shows wot-profile/issues)
   ... please review the issues

   [19]wot-profile/issues

     [19] https://github.com/w3c/wot-profile/issues

   Lagally: aob?

   (none)

   Lagally: btw, wondering about the progress of the use case
   description conversion

   Kaz: all the MD files of the use cases are already converted
   into HTML
   ... so we can review the resulted HTMLs during the use case
   call next week

   Lagally: ok

   [call 1 adjourned]
     __________________________________________________________

Call 2

   Lagally: initial description on the abstract system
   architecture
   ... including system components, lifecycle and thing templates

   Kaz: will you create a MD file based on the description?

   Lagally: actually, planning to generate an HTML file instead :)
   ... also would like to move the information on the summary
   table of use cases/volunteers to MD
   ... btw, regarding this call itself, let's adjourn it due to
   small participation today

   [adjourned]

Summary of Action Items

Summary of Resolutions

    1. [20]Use the current strawman document as the baseline for
       the Profile specification
    2. [21]Accepting the following requirements for the FPWD:
       Interoperability, Limit and reduce complexity, Eliminate
       ambiguities, Limit resource consumption, finite set of
       features and capabilities, follow security and privacy best
       practices subject to group feedback

   [End of minutes]
     __________________________________________________________


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Received on Monday, 27 July 2020 04:33:30 UTC