W3C

– DRAFT –
WoT and NGSI-LD

23 June 2025

Attendees

Present
Dave_Raggett, Kaz_Ashimura, Martin_Bauer, Michael_Koster, Michael_McCool
Regrets
-
Chair
McCool
Scribe
Martin

Meeting minutes

Minutes

<kaz> April-28

McCool did some work on Use Case document

we had a longer break, we need to agree on how to move forward

We need to check regarding the organizational change on ETSI side from ISG CIM to TC DATA

kaz It depends on the ETSI side (and we're waiting for the response from Franck about this)

Minutes are approved

Logistics

Sebastian can join once a month

McCool will stop activites by end of August

Michael Koster could continue activities

Possibility to handle this liaison discussion during the WoT main call

we have been discussing use cases, these need to be made more concrete

we need detailed attempts to use it together

we need to resume from where we left off in April

Kaz: We usually hold Use Cases discussion as a resource of spec generation, and maybe the goal of this liaison discussion is a bit different from our ordinary WoT Use Cases discussion. So probably it would make sense to think about how to deal with this liaison discussion a bit more.

McCool: we need a process capturing external requirements, in the past requirements weren't actionable
… not everybody in W3C is convinced about the process
… externally driven, more top-down approach is needed
… it needs to be concrete - try to do it and see what is missing

<kaz> Onboarding Use Case on wot-ngsi-ld repo

McCool: Onboarding of IoT devices to NGSI-LD is core use case for WoT
… What features are missing that an NGSI-LD system really needs
… we have some options here
… The other use case was to access Entity through WoT described interface
… this may require more features in WoT
… NGSI-LD side should try some things out
… Next plugfest will be at TPAC? open to non-members?

Kaz: we could invite non-Member stakeholders if needed

McCool: TPAC will be in Japan, thus attending in person may be difficult, and then do it remotely
… this needs preparation and bring something (almost) working

Kaz: personally okay to start with onboarding topic and invite NGSI-LD people. Wondering whether this would be of interest to ETSI side, because Marting gave another general use case on "TD for NGSI-LD Entity".

Martin: More interested in the other use case. Not sure what others think.

McCool: may start with some simple part, e.g. reading and writing attributes only
… Plugfest planning has not started yet

Kaz: It's ongoing now

McCool: Let's do this meeting once a month --> two meetings more for McCool

McCool: Plugfest activities start mainly in fall

Kaz: Actually, Plugfest preparation discussion has already started, and a dedicated Wikipage has been created for Plugfest

McCool: so we may have Plugfest meetings earlier

McCool: we should find out what your plans are

McCool: create some minimum viable use case and implement that

Martin: have one more meeting in July with more people from ETSI side involved

Martin: Moving to other set of Plugfest calls - it is not so clear what that means

McCool: Martin, talk to the other ETSI people, not next week due to TC DATA meeting, but e..g. the week after

Martin: Ok, I will organize on our side

McCool: I'll book the date, but if another time / date is better, let me know

Martin: Ok

Kaz: Just to make sure, what McCool is suggesting is inline with ETSI's expectation. It's that we'd like to start with a smaller and simpler part of the expectation.

McCool: plan from easiest to hardest

McCool: can you put the Plugfest link in?

<kaz> WoT Plugfest during TPAC 2025

McCool: not sure you can edit the wiki - if you cannot, send an e-mail to kaz

McCool: Plugtest will be during TPAC in Kobe, Japan 10-14 November

McCool: Link to testing github, may have relevant test cases, e.g. TDs

McCool: can you read these in and turn them into NGSI-LD entities

<kaz> Example TDs from the Testing event in 2022

<kaz> also TDs from Plugfest in 2024 November

McCool: Then we need to update Liaison info

Kaz: We are waiting for Franck, etc., about the contact person for the liaison.

<kaz> W3C Liaison entry for ETSI (Kaz is the contact from the W3C side)

McCool: The testing event in 2024 has some more advanced features, including thing models --> have a look

Martin: Ok, I'll talk to the others from ETSI

<kaz> [adjourned]

Minutes manually created (not a transcript), formatted by scribe.perl version 244 (Thu Feb 27 01:23:09 2025 UTC).