W3C

– DRAFT –
Web-based Digital Twins for Smart Cities IG

17 February 2025

Attendees

Present
Kaz_Ashimura, Kunihiniko_Toumura, Lieven_Raes, Linda_van_den_Brink, Michael_Koster, Michael_McCool, Raul_Garcia_Castro, Song_Xu, Tomoaki_Mizushima
Regrets
-
Chair
Koster
Scribe
kaz, mjk, McCool

Meeting minutes

Introductions

Koster: working on smart building. device architect
… also co-chairing WoT and bunch of standards

(Michael Koster is the Chair of the IG)

Kaz: Team Contact

Song: China Mobile

Mizushima: IRI japan
… working on WoT WG/IG

Lieven: interested in Digital Twins
… quite a lot experience
… predict the impact of the smart cities

McCool: Intel
… also co-Chair of WoT
… a lot experience on parallel computing, edge computing, AI, ...

Raul: work at university Madrid
… ontology-related research
… knowledge graph, etc., also
… committing to SSN Ontology

Linda: Geonovum from Netherland
… also working for OGC
… used to chair the SDW group

Toumura: Hitachi
… working on integration
… want to know how to combine multiple technologies

Song: (better audio)
… co-Chairing the Web&Networks IG
… working with McCool about several projects
… also work for W3C as AB

Logistics

Meeting schedule

McCool: we have two slots
… there are pros and cons

<Song> Sorry to correct, AB not BoD. :) kaz

McCool: maybe we could move this one hour later, for example

1st Doodle

Kaz: if we can move that call, we can consider that as an additional candidate

Koster: ok by me

Kaz: we should ask the other people's opinions

Koster: any problems, all?
… one single slot would be better

Linda: one hour earlier / later would be ok

Mizushima: slots around this time is ok

<Song> I also prefer to night time, +/- 1hr works

Toumura: one-hour later than this slot is ok

Kaz: what about you, Raul

Raul: good

Kaz: I'll ask Daihei about his availability

Koster: good

GitHub

Koster: Kaz proposes to create a GitHub repo
… should we have wiki also?

Kaz: would suggest we simply use GitHub only :)

McCool: easier to use only one MD notation :)

Koster: ok

<Linda> +1 for github

Koster: would make sense

ACTION: kaz to create a GitHub repo for smart cities IG

Any other logistics issue?

(none)

Quick review of IG Charter

<kaz> IG Charter

Kaz: shares screen with the IG Charter and walks through
… we may need to add some liaison groups
… for example spatial data
… the biggest issue is we are 6 months late in the process
… the biggest question is how to create a web based platform for smart city digital twins

<kaz> Scope Summary

<kaz> Identification of stakeholders from the industries, countries/cities and communities to involve in the group's discussion

<kaz> Survey on the existing technologies and standards for Smart Cities, e.g., possible building blocks of Digital Twin Framework and standardized Vocabularies for Smart Cities

<kaz> Best Practices on what kind of technologies to be applied to what kind of Smart Cities applications, e.g., WoT, Automotive, Geospatial, VR/AR, Speech and Semantic Web to be applied to improved accessibility, visitor guidance and energy management

<kaz> Use cases and requirements for Smart Cities

Discussion

McCool: the scope is quite broad, what is the priority

McCool: we should prioritize other W3C activities
… also think about gaps, what is gaps

Kaz: right
… let's discuss which group to start with first then

Coordination

Koster: Spatial Data

McCool: RDF-Star
… maybe we don't need to handle it ourselves in the end but we can look into their work
… note that different groups tackle different approaches
… need to understand how linked data is handled by them

Kaz: maybe we can use the GitHub repo to continue our research for those topics

McCool: we can use GitHub Issues mechanism for that purpose

Koster: ok
… we can start with creating GitHub Issues to initiate discussion

Kaz: once I've created a GitHub repo, you can create an Issue, McCool :)

McCool: and invite people to do so as well

Liaisons

McCool: organizations working on smart cities in general
… not necessarily an SDO
… intersection with the Web would narrow the scope later
… there are three bubbles here
… 1. Smart Cities
… 2. Web
… 3. Digital Twins

Koster: right
… given the success of ETSI around NGSI-LD
… some of the groups working on smart cities would make sense
… like a group of Matter

Existing resources

McCool: should have resources.md to gather information
… short summary of the topics

Koster: yeah

Kaz: shall I do that?

McCool: good
… we should invite people to review it
… also we can talk about our priority as well

Koster: like the NGSI-LD guys

McCool: right
… how to deal with geolocation information is important

Kaz: right
… we can ask Linda for help :)

Koster: that would be a good place for the discussion

Deliverables?

McCool: can talk about our deliverables?

Koster: good question

* Survey on the existing technologies and standards for Smart Cities
  (Technology Landscape)

* Best Practices on what technologies, e.g., WoT, Automotive, Geospatial, VR/AR,
  Speech and Semantic Web, to be applied for what kind of Smart Cities applications,
   e.g., improved accessibility, visitor guidance and energy management.

* Use cases and requirements for Smart Cities

McCool: according to the Charter, the deliverables are as above

Lieven: meet a requirement or not
… meet a feature also
… what about prediction, cross-domain integration, etc.
… once formulate the requirements, should analyze possible gaps with potential standards

McCool: good point
… e.g., WoT is organizing user stories
… analyzing the purpose of the task

Lieven: would support that

<McCool> suggest user story approach, As an X I need Y in order to Z. Z is purpose, can also be a task (e.g. in order to make decisions based on data).

<McCool> X is stakeholder, Y is feature (e.g. property graphs)

Kaz: another topics is possible Team Report about Smart Cities
… I can generate some document based on the Charter
… and I believe it would be useful for our IG discussion as well

Next meeting

Koster: next week
… will update the agenda on the GitHub repo

[adjourned]

Summary of action items

  1. kaz to create a GitHub repo for smart cities IG
Minutes manually created (not a transcript), formatted by scribe.perl version 242 (Fri Dec 20 18:32:17 2024 UTC).