W3C

- DRAFT -

WoT-IG/WG

15 Apr 2020

Agenda

Attendees

Present
Kaz_Ashimura, Dave_Raggett, Farshid_Tavakolizadeh, Maria_Poveda_Villalon, Michael_Koster, Sebastian_Kaebisch, Sreekantha_Devasya, Michael_McCool, Josh_Cohen, Daniel_Peintner, Ege_Korkan, Zoltan_Kis, Carlos_A_Velasco, Takahisa_Suzuki, Tomoaki_Mizushima, Taki_Kamiya, Tetsushi_Matsuda, David_Ezell, Kunihiko_Toumura, Ryuichi_Matsukura
Regrets
Michael_Lagally
Chair
Sebastian, McCool
Scribe
mjk

Contents


<kaz> scribenik: mjk

Agenda review

Sebastian: any other agenda?

(none)

Guests

Sebastian: guests from Fraunhofer to present

Kaz: welcome Carlos Velasco from Fraunhofer

Shreekantha: also from Fraunhofer

Sebastian: and another guest, Josh Cohen

Josh: worked at Microsoft on SOAP standards
... like interoperable things and developing a passion for smart homes
... interested in IETF group also and can work on prototypes and code

<joshco> ya, also in DMTF.org main author and chair of WS-Management, which is now ISO/JTC1,

<joshco> ok i viewed the IP webpage, is there a clickthrough form I'm supposed to fill out for it?

<joshco> I understand it! thanks I hereby offer a non-exclusive royalty free license to any silly and uninformed things i say

McCool: there is plenty of development work to be done

Josh: curious about the REST architecture aspect

McCool: please review the reference implementation

Sebastian: now welcome Fraunhofer to present

Frauhofer's talk about LinkSmart Thing Directory

Farshid: presenting and introduce the Fraunhofer colleagues
... Fraunhofer is a collection of institutes with a 2.8B research budget
... the present department is User Standard Computing
... focus on IoT, Industrie4.0
... building reusable components for IoT as enablers to build larger systems
... have used Linksmart in projects in 10 countries
... based on senML standard
... sensorThings API supported
... current project is creating a system for monitoring buildings

<McCool> McCool: preview of my comment: energy-efficiency use-case should be captured using our template as a WoT use-case

Farshid: collecting sensor measurements from gateways and provide metadata
... Thing Description is used to package the metadata

<McCool> McCool: another comment: mention discovery TF, DIDs

Farshid: TD exposes endpoints for history
... using Thing Directory and decided to implement their own directory

<McCool> McCool: also, meta-data block is interesting; to discuss in use-case

Farshid: Linksmart Thing Directory in golang
... all open source and public
... description of internal architecture
... consisting of a catalog, schema loader, validator, internal model, controller...
... http based RESTful API but other APIs may be used due to a pluggable architecture

<McCool> McCool: I also want to mention edgeX integration... might be useful to use the linksmart component there

<McCool> McCool: ttl is optional... to discuss

Farshid: design decisions include a loadable schema

<McCool> McCool: open issues are how to handle validation when there are semantic extensions being used

<McCool> McCool: is there a way to notify consumers of changes to TDs?

<McCool> McCool: is there a search mechanism, eg via keywords, template, etc? does pagination returns tds or td ids?

Farshid: API with query and path-fetch endpopints

<McCool> McCool: partial TD issues; are returned values always valid TDs?

Farshid: working on documentation and extensions to TD, expect to be done by end of next month
... questions?

McCool: questions on the IRC
... we have a discovery TF we should discuss, the work seems well aligned
... looking at DID to replace the UID
... should capture the energy use case in our use cases
... metadata in TD is interesting to discuss, whether the link construct could be used
... also thinking about edgeX integration
... targeting deployment in October
... ttl should be mandatory for most use cases
... is there a way to do search?
... are the partial results from TD path requests valid TDs?
... we could follow up later

Sebastian: could Farshid join the next discovery TF meeting to discuss further?
... also could there be a contribution to the standard?

McCool: consider this to be a potential candidate

Carlos: if Farshid has the bandwidth it is OK to contribute

Sebastian: as a time check, we should move this discussion to the Discovery TF
... can we get a copy of the slides?

McCool: email to sebastian and he will post on the GH wiki

Meetings update

Sebastian: singapore govtech next Tuesday 2pm in Europe
... time change for the mktg call; one hour later; mccool will send out a calendar invite

Kaz: already sent out updated webex coordinate to the group list and updated the marketing wiki

McCool: update on POC for event in October

Sebastian: On April 9 the TD and Architecture documents were published as official W3C Recommendations
... there is also a W3C Press Release and responses are being collected
... so far 3 reports have been published
... please help collect any articles and forward to W3C marketing team

F2F planning

Sebastian: next meeting is in June and will be virtual
... there is a new Wiki page
... please check for the latest information and schedules
... please provide preferred time slots on the doodle poll
... looking for a solution to online plugfest software
... does anyone know of a good VPN solution for physical endpoints

McCool: will discuss more in the next hour plugfest/test meeting; need to make sure we capture all of the requirements

Sebastian: please register if you plan to participate

TPAC

Sebastian: planning a parallel physical and virtual meeting; there is a questionnaire to collect feedback on the options
... setting up a doodle pool for time slot preferences
... please complete the questionnaire by May 24th
... planning for the plugfest
... also time to identify which joint TF meetings are needed

TF reports

Sebastian: no scripting or architecture or discovery calls due to the bank holiday
... discussion about developer outreach in the marketing call

McCool: how do we support developers?

Sebastian: discussion on explainer video production
... new welcome web page
... we are requesting help with creating protocol description files for CoAP and MQTT in RDF

Koster: WISHI hackathon integrating node-wot in a semantic proxy and protocol bridge

Sebastian: WISHI call on the 26th discussing WoT and TD

<Ege> https://github.com/eclipse/thingweb.node-wot

Ege: has a working node-wot based protocol converter

Sebastian: thank you everyone and adjourn

Josh: follow up with McCool on areas where we need help

Kaz: (suggests Josh contacts Kaz about his possible contributions)

<joshco> thank you for having me

<kaz> [main call adjourned; plugfest call will start in 5 mins - same webex different irc channel #wot-pf]

Summary of Action Items

Summary of Resolutions

[End of minutes]

Minutes manually created (not a transcript), formatted by David Booth's scribe.perl version 1.154 (CVS log)
$Date: 2020/04/22 12:09:08 $