W3C

Automotive Working Group TPAC meetings

12 Oct 2020

Agenda

Attendees

Present
Ted, Steven, Peter, Ulf, Arman, Daniel, Gunnar, Wonsuk, Joakim, Jon, MagnusG, Adnan, Benjamin
Regrets
Chair
Peter
Scribe
Ted

Contents


<scribe> Scribe: Ted

<scribe> scribenick: ted

<scribe> Agenda: https://www.w3.org/auto/wg/wiki/Auto-f2f-oct-2020#Monday.2C_12_October

Auto WG Charter introduction

Brief Introductions

W3C Auto @ TPAC meeting

[IRC, minuting, oberserver input]

Auto WG Charter introduction

Ted: introducing this topic today and will revisit, finalize at the end of this week's meetings
... Peter and I will meet to turn group's findings into new draft charter

current Auto WG charter

current Auto & Transportation BG charter

Ted: our current charter expires at the end of the year
... VISS should have been completed, we could reach PR in next week or two and PR->REC is like an extended last call
... Gen2 has been drawn out and we are way behind on our timeline. Gen2 scope (roadmap) on today's agenda and it should influence our expectations
... made this plea before but we clearly need to increase group participation, additional editors and not just spectators, in order to increase momentum
... Patrick L's was a strong initial driver but participation has waned. Ulf and Isaac (mostly on Access Control) have been doing an excellent job but we can clearly do more, faster if remaining work divided up
... our performance and group involvement, clear signs of increased commitment and more concrete roadmap will increase our chances of support from W3C Management and Membership in being rechartered
... roadmap being worked on in conjunction with GENIVI, CVII which will be discussed later today.
... that CVII outreach to GENIVI and W3C Members and prospects significant part of participation campaign
... reiterate request to review current W3C Members your companies are partnering with so we can engage them. they are typically in vastly different departments

Current W3C Members

Ted: as a sidenote on topic of Chairs. I will ask Patrick if he has interest in reengaging and remaining Chair
... is anyone else interested in this role? no compensation other than clout... please consider, discuss with your manager and with Peter and/or myself on what is involved

Peter: I agree we could use more Chair involvement, this year has been extremely strange and would appreciate another active chair
... do we have spot on agenda where we could fit in a status overview for the group

Ted: for work deliverables to include in our recharter
... VISS PR->REC, should be mostly ushering but may experience a surprise
... RPC clearly getting off to a strong start
... in-vehicle application Best Practices as more is needed than just data model and protocols to breech long standing industry impasse on OEM/supplier/partner
... hearing some moderate interest on previous proposal from a few individuals (Arman, Armin, Ashish and Isaac)
... my rough notes need to be polished into a draft as a starting point, we could/should conduct separate breakout call if enough agree this is worth taking up
... VSSo has been stalled, awaiting IPR commitment from EURECOM in form of Member Submission. VSSo combines VSS with W3C Spatial Data on the Web (SDW) core ontologies for Time and Sensors. these core concepts are receiving revisions and extensions and would benefit from automotive/transportation use case input and experiences
... TOCC work still early, formative and unclear where any standards would be worked on, more likely in SDW (also undergoing rechartering from Interest Group->Working Group) given ontology focus and other

Joakim: while you haven't seen any data for GraphQL project, there have been a number of internal important questions
... let's keep it open and continue trying to push it

Arman: re Best Practices, I see the promise and agree there needs to be further guidance on how to use these standards
... it is clearly important to increase adoption and prevent misuse
... may help raise visibility in how it could be applied

Peter: I think it is an important area

Ulf: is there any documentation so far?

Gunnar: I agree on need for a first outline to get people thinking about it further
... also add happy to support this work. It is not a topic on GENIVI agenda but also fine to have some differentiation in our collaboration

Ted: scattered, wiki, minutes and raw notes. can at the least advance wiki

[Ted provides summary of Transportation Ontology Coordination Committee comprised of Open Geospatial Consortium (collaborates with W3C in Spatial Data on the Web activity), ISO Intelligent Transportation Systems and ISO SmartCities which came out of Transportation Data Workshop last year and part of promoting VSS(o) - data at center of our connected vehicle standards mantra]

https://www.w3.org/services/meeting-minutes?channel=transportation&num=200

Joakim: can you send link on chat on where to sign up

Ted: I'll sign you up
... that will put you on public-transportation-data@w3.org mailing list
... our github repo https://github.com/w3c/tocc/
... anything else we should consider for WG charter?

Gunnar: form of concrete deliverables?

Ted: yes

Gunnar: not more from my perspective on CVII and the technology stack around that
... if there is more people think should be in W3C realm besides RPC, let us know?

Ted: we can more easily add to BG charter than WG to incubate ideas as gaps are identified

Joakim: could we discuss developing a charging branch?

Ted: sure

Gunnar: we have EV signals in VSS

Ted: more to do besides just the raw signals, interested in this area myself

Joakim: the landscape is becoming more diversified and would like to see more partners involved
... it is a more complex problem than just signals and can develop use cases

Daniel: it can be part of ontology work too

Gunnar: the definition of such interfaces and needs are important to be done somewhere
... as for actual charging, physical outlet there are other standards organizations
... out of scope for GENIVI and assume same for W3C but services, analysis and route planning that could be within RPC

Joakim: cars, power suppliers and agents/operators - multiple actors requires coordination. I am not speaking of the physical connectors
... would be important for all parties to collaborate and facilitate car charging

Daniel: we have had discussion about this in W3C Web of Things and one thing I wanted to bring that and W3C Auto together

Gunnar: is there an IoT need for EV charging?

Daniel: use case is basically allowing home charging stations to be used by others as well as intelligent house interactions
... not just IoT

Ted: lots of similarities in WoT and RPC, simply another protocol to achieve the same thing and can share service catalog. WoT approach might provide additional flexibility, custom thing descriptions besides regular catalog capabilities

Gunnar: auto industry should be leading needs for charging cars more than IoT, what you say about protocols and commonality makes sense

Daniel: we quickly step into others' domains, such as energy suppliers
... there may be other partners in helping define this

Gunnar: there are already energy suppliers in contact with GENIVI and Geotab, maybe this group sometime as well
... there are cases where you move into home there can be more alignment

Joakim: I think W3C has a unique position given its reputation and RF standards that is appealing
... there may be aspects to add to VSSo which is already using other W3C standards in addition to GENIVI VSS
... it can align more with SmartCities, etc

Gunnar: GENIVI also creates open standards wrt licensing, in some regards maybe more open
... W3C Member Submissions for example has restrictions and doesn't allow derivatives

Joakim: glad to hear that

Gunnar: regarding VSS being a GENIVI thing, it is shared initiative with W3C

Ted: I am hearing clear interest in EV ecosystem use case evaluation and how it ties into our work
... I will add to the Business Group (which acts as an incubator for us) charter. Joakim, you and I should try to flush out initial ideas and can schedule breakout call like we do for RPC after

Peter: support Gunnar that we should still keep this aligned with VSS

Gunnar: I am eager to learn more about VSSo

Joakim: I am coming from semantic interests of Volvo and assume BMW has similar interests
... it may bring in other ontologies for other, related domains that we could possibly reuse

Gunnar: what we are looking for as alignment
... we are strengthening collaboration between GENIVI and W3C

Ted to add EV charging use cases to BG charter

Daniel: looking to work on more related areas as VSS2.0 reaches maturity

Gen2 roadmap

Gen2 Roadmap

Ted: we have addressed a number of outstanding items in the Gen2 roadmap, meanwhile other ideas have been introduced

* RPC - deemed separate spec although desired to align (separate agenda item later this week)

* Push/Pull

* incorporating sampling methodologies in service subscription, eg Curve algorithm, time interval, event driven

* compression, serialization and alternate formats (separate agenda item later this week)

Ted: we have addressed a number of outstanding items in the Gen2 roadmap, meanwhile other ideas have been introduced

* RPC - deemed separate spec although desired to align (separate agenda item later this week)

* Push/Pull

* incorporating sampling methodologies in service subscription, eg Curve algorithm, time interval, event driven

* compression, serialization and alternate formats (separate agenda item later this week)

Gunnar: also measurement jobs for lack of better term, requesting data recorded for a period of time and collected

Ted: service to cache and store?

Gunnar: eg if a signal goes above 10, record additional signals
... different from subscriptions

Ted: I could see that being in the client but also argument for service

Ulf: what I would like to see is support for historic data and see jobs like you describe in service domain

Gunnar: historic not necessarily realistic, service might not store large amounts of abitrary data for possible later interest

Ulf: I see need for local storage if it there is a network disconnect

[I see that aligning with Push/Pull optimization topic]

Gunnar: Sensoris has concept of measurement jobs and see this in the whole scope, doesn't necessarily need to be in Gen2

Ted: formal chapter, terminology etc I see as part of a spec walk through perhaps best with a subset of us before bringing back to the full group
... after updating Gen2 roadmap we only have Queries left of substantive pieces, unless later this week we decide to graduate items from wishlist to current scope

CVII outreach

Ted: Gunnar and I will provide an overview of roundtables and campaign to date, want input on messaging and invitee ideas from Auto WG
... 27 October, during GENIVI AMM there will be a 3.5h workshop on Connected Vehicle Interface Initiative (CVII)

GENIVI AMM agenda, see Tuesday 27, October (better anchor link?)

Breakout sessions

Ted: we want to provide a high level overview of standards activity to GENIVI, W3C Members and invitees, fuller picture of the various pieces (ours, ExtVeh, prototype)
... additional OEM besides those currently involved in GENIVI+W3C are now proponents, some on panel
... provide opportunity for other stakeholder (supplier, service provider, prospective tech company partners) perspective
... explain problem statements and need to getting past long outstanding roadblock towards interop and new business opportunities it provides

CCS diagram

Gunnar: hope we can book some additional time later this week for slide review, etc

Ted: absolutely

Gunnar: Connected Vehicle Interface Initiative (CVII) at its core is a discussion with the industry on the whole related architecture, building on top of VSS and VSC
... isn't it time we make this a reality with common data model and potential of this effort from within vehicle to the cloud
... it is a strong statement that GENIVI and W3C are driving this together
... part of this is also to recognize this goes across multiple organizations which is why we have outreach to Sensoris, seeking alignment with JASPR
... Toyota has been on our OEM roundtables. there is some similar standardization in JASPR
... think you are familiar with Sensoris which also has a common data catalog
... there is also AutoSAR we would like to align with them. GENIVI has worked in aligning with them for years such as AutoSAR XML and FrancaIDL
... it is an initiative and conversation with the industry, get their input on how to achieve this
... JLR is the initial driver on RPC and accompanying service catalog as most of you know
... we are moving that forward. we want to hear about alternatives and trying to seek alignment
... we have analyzed what this means. I talk about model and catalog, common list of signals and service interfaces for RPC
... model is rules for how to write that list. there has been confusion about this VSS project. does someone need to accept the full list of signals to adopt this, etc
... on top of this is the technology stack, not just the protocol standards but libraries etc to leverage and utilize
... we point to the advantage of having these common core concepts from signal inception all the way to the cloud
... we have so far in a GENIVI tradition held OEM only roundtables as a useful way to get the conversation started
... we have noticed if we have it too broad to others in the industry, it even stiffles discussion
... we will hear statements and plans from additional OEMs in starting this work
... this is a joint initiative and think it is worth clarifying we are not competing but collaborating organizations

Ted: want have succint bullet points and description for breakout session wiki

Breakout session wiki

Ted: additional ideas for breakout sessions? we can/should check in again toward end of this week's meetings
... eg EV charging interactions as mentioned earlier would be a great one, involving WoT

Daniel: you said model is at the root. I remember having discussion with VW on data model and how we were talking different languages...
... rest is rule set, we diagramed all that. are we going away from that, concerned about term 'model'

Gunnar: fair point. I use catalog more than model, understand we settled on taxonomy
... in my opinion model is not list of signals and use catalog there
... we can speak how there are other catalogs, proprietary extensions people made or how Sensoris is not comfortable with their data in VSS tree but a private branch
... all of these things are in some sense equivalent
... I started by clarifying we need common instead of different camps for the industry

Ted: not reopening that debate. we should use multiple terms for 'model' as some won't get taxonomy
... been trying to engage other departments in VW that are more focused on telematics than infotainment. Patrick L reached out, received name of someone but no intro within VW

Gunnar: taxonomy speaks to the hierarchical structure, more than just a list. I do like the simpler term model even though hierarchy is great
... I will share slides I have so we can work on that together. We have some new companies involved in this initiative who may have other terms

Daniel: I am fine with everything, just want to have it clear
... I am not religious, people do often use 'data model'

[adjourned]

Summary of Action Items

Summary of Resolutions

[End of minutes]

Minutes manually created (not a transcript), formatted by David Booth's scribe.perl version (CVS log)
$Date: 2020/10/12 19:06:58 $