W3C

– DRAFT –
Automotive Working Group Teleconference

05 April 2022

Attendees

Present
Adnan, Carine, Erik, Paul, Peter, Ted, Ulf
Regrets
-
Chair
Peter, Ted
Scribe
ted

Meeting minutes

AMM

Ted: Adnan, welcome back from vacation - sorry to have been harassing you but we're keen on getting demo of BMW's VISS at AMM

Adnan: we'll be there, trick will be timing

Ted: Ulf has presented VISS a couple times. point we're at is trying to get wider feedback, encourage experimentation or adoption
… I've been harassing Peter about Volvo's experiment and trying to learn from Erik what Bosch intends since they implemented v1

Peter: conversation resuming, there is interest in VISS
… how many do we need to advance?

Ted: two

Adnan: need to get a green light from our communications department

Paul: wouldn't this fit as part of CVII track on Thursday?

Ted: yes

Ulf: Ted and I would be fine with a half an hour

Adnan: we could do 20-30 minutes, have about 8 slides and could include our GraphQL version and vehicle emulator

Inverse Range Filtering

https://github.com/w3c/automotive/issues/450

Ulf: in filtering we support either open or bound range
… my thought was it would be interesting to have inverse filtering, receive values when outside of boundary region
… that isn't possible today but could be with this proposal
… you can have two bounding expressions logically OR
… we didn't have operand expression before, it was always implicitly AND
… we discussed before but wanted to give people time to reflect more

Peter: I think it is worth having
… do you want it in there now or later version (v3)?

Ulf: it is fairly minor to add to spec or implement so would prefer it now

Peter: I'm for it

Erik: my potential concern is "is it sufficient?" or do we need to support more complex scenario

Ulf: I see some value for rudimentary inverse boundary

previous discussion of this issue

Erik: I agree it is useful, question is whether we should support more advanced use cases

Ulf: that we can discuss more in v3 perhaps instead of trying to define now

Ted: my comment previously was similar to Erik's, ability to handle more complex but fine if we do that later
… other question was whether this feature is mandatory or optional?

Ulf: I think it depends on whether range itself is mandatory. my proposal is to make a PR and present back

Adnan: do you also look at frequency of updates, say every 10th value you want back?

Ulf: we do time interval

Adnan: on change supported as well?

Ulf: yes, we have such a filter when a value changes more than some set number

Erik: I just added a comment to this issue, would it be worth having an XOR?

Ulf: I wanted to keep it simpler for now, avoid too much complexity to implement

Erik: this approach might be helpful if we later want more capability

Ulf: I want to hear more from early adopters on what is needed or useful before adding
… they're quite interesting ideas but still think not now
… we're in agreement on moving forward

PR

https://github.com/w3c/automotive/pull/451

Erik: it is more or less just link fixes

Ulf: yes, looks like just cross linking
… earlier Wonsuk improved cross-referencing links which we accepted and inclined to do the same here

Erik: can we see the result easily for this PR to be able to check they do what they're intended

Ulf: I think it is possible to test with rawgit rendered based on the branch

Ted: the links should work against current, published version (spot check confirms)

Ulf: let's accept then

Minutes manually created (not a transcript), formatted by scribe.perl version 185 (Thu Dec 2 18:51:55 2021 UTC).