[wot-discovery] minutes - 20n July 2020

available at:
  https://www.w3.org/2020/07/20-wot-discovery-minutes.html

also as text below.

Thanks a lot for taking the minutes, Cristiano!

Kazuyuki

---
   [1]W3C

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

                               - DRAFT -

                             WoT Discovery

20 Jul 2020

Attendees

   Present
          Andrea_Cimmino, Cristiano_Aguzzi, Farshid_Tavakolizadeh,
          Kaz_Ashimura, Kunihiko_Toumura, Michael_McCool,
          Tomoaki_Mizushima

   Regrets
          Christian Glomb

   Chair
          McCool

   Scribe
          Cristiano

Contents

     * [2]Topics
         1. [3]Previous minutes
         2. [4]First index.html draft
     * [5]Summary of Action Items
     * [6]Summary of Resolutions
     __________________________________________________________

Previous minutes

   <inserted> [7]July-13

      [7] https://www.w3.org/2020/07/13-wot-discovery-minutes.html

   <kaz> (kaz still need to create an issue on RFC)

   McCool: Please in the notes try to use TDD for Thing Directory
   and TD for Thing Description
   ... Toumura-san, please create an issue about auto creation of
   UML diagrams

   Farshid: the sequence diagram should capture the whole
   introduction flow.

   McCool: any other comments?
   ... any objection publishing this?
   ... ok published

First index.html draft

   <kaz> [8]PR 35

      [8] https://github.com/w3c/wot-discovery/pull/35

   <kaz> [9]Statically rendered version HTML by Toumura-san

      [9] https://cdn.statically.io/gh/w3c/wot-discovery/3f13162d382d5ba9257a438dc69abecec4e96808/index.html?env=dev

   McCool: farshid made some comments on the PR
   ... there is a problem with the agent that renders the PR
   diffs. it might be a bug, it is cause by the fact that the
   previous version of the index file does not exist
   ... however we have a rendered version
   ... reviewing the index document
   ... I added the new editors, please double check your
   affiliation
   ... the abstract need to be fixed
   ... added TDD acronym. We need to be consistent

   Farshid: should we add this information also to the TD
   document?

   McCool: yes
   ... not sure if we have to use the prefix WoT for each term
   defined in the document (i.e. WoT discovery or just discovery)
   ... forgot to add spatial queries capabilities in the paragraph
   5.2

   <kaz> [10]section 5.2

     [10] https://cdn.statically.io/gh/w3c/wot-discovery/3f13162d382d5ba9257a438dc69abecec4e96808/index.html?env=dev#requirements-search

   McCool: the search must be scalable
   ... for privacy reasons we have a clear action to delete items
   inside a TDD
   ... I defined different introduction mechanisms
   ... About direct method URLs used there must return TDs

   <kaz> [11]7.1 Direct

     [11] https://cdn.statically.io/gh/w3c/wot-discovery/3f13162d382d5ba9257a438dc69abecec4e96808/index.html?env=dev#introduction-direct

   McCool: in the document we have also different exploration
   mechanisms
   ... in this context we have to define the minimum requirements
   for security and privacy
   ... I think we should merge this so that we could work on this
   version

   Farshid: Using the direct method it is difficult to know before
   hand if the returned TD is a TDD or not
   ... do we want to distinguish?

   McCool: in general we cannot do it. We may define a convention

   Farshid: ok, but we need to be consistent. for example also in
   DNS method we should not distinguish

   McCool: well, it depends. it might be more appropriate to
   leverage on the features of the underline mechanisms (i.e. use
   types in DNS-Multicast)
   ... so it might be good types when they are available
   ... my feeling is that if we have types we'd better use them

   Farshid: should we move the content of direct paragraph?

   McCool: yes let me do it right now
   ... adding also special thanks to people who are not editors
   ... conflicts resolved
   ... kaz, do you have the w3c number of the new editors?

   Kaz: yes, please see the WoT WG Chair's Dashboard below

   <kaz> [12]WoT WG Chair's Dashboard tool

     [12] https://www.w3.org/PM/Groups/chairboard.html?gid=95969

   Farshid: CRUD operation might have their section (i.e.
   management)

   McCool: we need two different set of api: one for "account"
   management and other for searching

   Andrea: what about dividing search section in twos ? (i.e.
   semantic and not semantic )
   ... Why XPath? it is all XML

   McCool: XPath is a standard and they have next version which
   handles JSON

   Farshid: what about an API for listing? it is related to search

   McCool: yes let me add that

   Andrea: if the search result contains another TDD, should the
   main TDD do a federated query and automatically retrieve TDs
   from it ?

   McCool: it is an open question. It is related to links (i.e.
   choose to follow a link or not)

   Andrea: SPARQL supports federated queries
   ... We can express even spatial queries with SPARQLs

   McCool: there is also other mechanisms to do spatial queries
   ... may be more efficient and we need to capture them

   Cristiano: sparql has an extension called GeoSPARQL designed to
   handle spatial queries

   [13]OGC's GeoSPARQL

     [13] https://www.ogc.org/standards/geosparql

   McCool: interesting
   ... so is it ok to merge the #35?
   ... ok, we have a baseline. We have still a lot to do. PRs are
   welcomed.
   ... merged.
   ... we have to define a discovery.md file in the use-cases repo

   Farshid: we are working on use cases. We may contribute also to
   discovery.md file

   McCool: I'll add a horizontal use case document then

   Kaz: btw, we should talk about the updated published version

   McCool: ok let's close the meeting and I'll add that to next
   call agenda

   <kaz> [adjourned]

Summary of Action Items

Summary of Resolutions

   [End of minutes]
     __________________________________________________________


    Minutes manually created (not a transcript), formatted by
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    $Date: 2020/07/27 14:10:20 $

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Received on Tuesday, 28 July 2020 07:28:06 UTC