IRC log of wot-arch on 2022-12-01

Timestamps are in UTC.

11:00:26 [RRSAgent]

RRSAgent has joined #wot-arch

11:00:26 [RRSAgent]

logging to https://www.w3.org/2022/12/01-wot-arch-irc

11:00:55 [kaz]

meeting: WoT Architecture/Profile

11:01:26 [kaz]

chair: Lagally

11:01:32 [mlagally_]

mlagally_ has joined #wot-arch

11:01:36 [kaz]

present+ Kaz_Ashimura, Michael_Lagally

11:05:20 [kaz]

present+ Ryuichi_Matsukura

11:07:16 [kaz]

present+ Sebastian_Kaebisch, Tomoaki_Mizushima

11:07:52 [kaz]

scribenick: kaz

11:08:13 [kaz]

agenda: https://www.w3.org/WoT/IG/wiki/WG_WoT_Architecture_WebConf#Architecture_.2B_Profile_-_Dec_1st.2C_2022

11:09:46 [kaz]

topic: Agenda

11:09:53 [kaz]

ml: (goes through the agenda)

11:10:12 [kaz]

-> https://www.w3.org/WoT/IG/wiki/WG_WoT_Architecture_WebConf#Architecture_.2B_Profile_-_Dec_1st.2C_2022 agenda for today

11:12:28 [kaz]

topic: Minutes

11:12:32 [kaz]

-> https://www.w3.org/2022/11/30-wot-profile-minutes.html Nov-30

11:12:37 [kaz]

ml: (goes through the minutes)

11:14:33 [kaz]

approved

11:15:23 [kaz]

topic: PR 297

11:15:48 [kaz]

-> https://github.com/w3c/wot-profile/pull/297 PR 297 - Revised Abstract and Introduction - fixes #115 and fixes #190

11:15:58 [kaz]

ml: hard to review

11:16:19 [kaz]

sk: did you see the changes themselves?

11:16:29 [kaz]

... think it's a huge improvement basically

11:16:58 [kaz]

... I can't add further improvement until this PR is merged

11:17:02 [kaz]

ml: did see it

11:17:51 [kaz]

... some of the changes are really useful

11:18:16 [kaz]

... but we should thoroughly review each PR

11:18:54 [kaz]

sk: would like to update the introduction section as soon as possible...

11:19:22 [kaz]

q

11:19:26 [kaz]

s/q//

11:19:28 [kaz]

q+

11:19:47 [kaz]

ml: currently we're focusing on the Testing

11:20:12 [kaz]

... so if you could hold it, wouldn't be harmful

11:20:19 [kaz]

... McCool is working on splitting this big PR

11:21:21 [kaz]

ack

11:21:25 [kaz]

s/ack//

11:21:36 [kaz]

kaz: we had discussion on this PR yesterday

11:21:56 [kaz]

... and decided that Michael McCool would split this PR into smaller pieces

11:22:19 [kaz]

... so Sebastian, if you want, you can also create a small PR to update the introduction section

11:22:38 [kaz]

... and let McCool and Lagally know about your new PR

11:23:26 [kaz]

sk: would prefer merging this first and then add my modification

11:26:28 [kaz]

kaz: again, the most of the proposed changes from this PR 297 should be included in the next WD

11:26:51 [kaz]

... but we want to review the whole changes thoroughly based on the decision yesterday

11:27:15 [kaz]

... in that case, Sebastian can generate his own smaller PR to modify the introduction section

11:27:23 [kaz]

... and maybe we can merge that PR first

11:27:46 [kaz]

... and review McCool's split smaller PRs for this PR 297 after that

11:27:50 [kaz]

ml: agree

11:29:45 [kaz]

sk: would be easier to merge this PR first for examples, etc.

11:29:58 [kaz]

... and add my modification referring to them

11:31:09 [kaz]

ml: Sebastian, you can take several points from Ben's PR and generate your own PR

11:31:09 [kaz]

sk: ok

11:31:15 [kaz]

kaz: really appreciated

11:31:51 [kaz]

s/topic: PR 297/subtopic: PR 297/

11:32:02 [kaz]

i/subtopic: PR 297/topic: Profile/

11:32:41 [kaz]

subtopic: Authentication constraints

11:34:16 [kaz]

-> https://w3c.github.io/wot-thing-description/#oauth2securityscheme Thing Description 1.1 - 5.3.3.10 OAuth2SecurityScheme

11:34:56 [mlagally_]

https://github.com/w3c/wot-thing-description/blob/186e1096b138e959a8e382da24185f1ad5624556/testing/all-TD-implementations.csv

11:35:12 [kaz]

s/https/-> https/

11:35:24 [kaz]

s/csv/csv all-TD-implementations.csv/

11:35:35 [kaz]

ml: difficulty with implementing OAuth authentication

11:36:12 [kaz]

... the right thing should be adapting the code flow

11:36:23 [kaz]

sk: Siemens has been trying to implement it

11:36:46 [kaz]

... however, no guarantee for the Testfest

11:37:23 [kaz]

-> https://github.com/w3c/wot-profile/pull/331 PR 331 - narrowing down oauth required flows

11:38:01 [kaz]

-> https://pr-preview.s3.amazonaws.com/w3c/wot-profile/331/6ac4097...af375ca.html#common-constraints-security diff - 6.4 Security

11:38:40 [kaz]

q+

11:39:50 [kaz]

ack k

11:39:56 [kaz]

kaz: the content is ok

11:40:12 [kaz]

... but the description of the 2nd sentence is a bit odd

11:40:23 [kaz]

... first sentence: Conforant Consumers

11:40:29 [kaz]

... 2nd: A Thing

11:40:45 [kaz]

... 3rd: Conformant Consumers

11:40:54 [kaz]

... 4th: Conformant Things

11:41:19 [kaz]

... so the 2nd sentence should also say "Conformant Things", shouldn't it?

11:41:25 [kaz]

ml: would be better

11:42:11 [kaz]

sk: does this question go to the Providers or Consumers?

11:42:56 [kaz]

... a Consumer might not support it due to performance issue

11:43:03 [kaz]

q?

11:43:04 [kaz]

q+

11:45:04 [kaz]

kaz: do you mean a potential intermediary which supports OAuth security for a Consumer?

11:45:12 [kaz]

ack k

11:45:20 [kaz]

sk: don't want to make the story complicated, though

11:45:36 [kaz]

ml: what we could do is requiring security

11:46:11 [kaz]

... BasicSecurityScheme is mandated and OAuth2SecurityScheme is optional

11:47:31 [kaz]

... let's ask McCool for opinion again

11:48:06 [kaz]

subtopic: Links

11:48:44 [kaz]

-> https://github.com/w3c/wot-profile/pull/315 PR 315 - Improve link assertions

11:49:06 [kaz]

ml: changes requested

11:50:13 [kaz]

-> https://pr-preview.s3.amazonaws.com/w3c/wot-profile/315/f041378...0d9d2e3.html#common-constraints-links diff - 6.5 Links

11:50:21 [kaz]

ml: (goes through the changes within the diff)

11:51:05 [kaz]

q+

11:51:26 [kaz]

... (explains the Note)

11:51:27 [kaz]

[[

11:51:38 [kaz]

NOTE

11:51:38 [kaz]

These links enable consumers to interpret linked content that is provided by the link target in an unambiguous way. This interpretation is a "best effort" mechanism, that depends on the capabilities of the consumer. A consumer with a browser could render HTML content, a consumer with a PDF engine can display PDF content, a consumer with a dot-matrix display only can display icons.

11:51:39 [kaz]

For consumers that can render images or documents this implies to display appropriate documentation to a human reader.

11:51:40 [kaz]

Consumers that are capable of working with nested things and thing model structures are able to navigate between things and thing models in a well defined way.

11:51:43 [kaz]

]]

11:53:30 [kaz]

kaz: does this mean we expect the implementers to handle expected data to be negotiated between the server side and the client side like the language negotiation mechanism?

11:53:52 [kaz]

... e.g., en.html, ja.html, fr.html

11:54:18 [kaz]

ml: not really sure about language negotiation mechanism...

11:54:54 [kaz]

sk: what you have there at section 6.5

11:55:15 [kaz]

... maybe you can list the possible link relation types there

11:55:48 [kaz]

... to be supported by TD

11:55:57 [kaz]

... can quickly check it

11:56:17 [sebastian]

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11:56:18 [sebastian]

https://w3c.github.io/wot-thing-description/#link

11:56:54 [kaz]

s/https/-> https/

11:57:05 [kaz]

s/link/link Thing Description 1.1 - 5.3.4.1 Link/

11:57:52 [kaz]

sk: link parameters listed within the section 5.3.4.1 of Thing Description 1.1

11:58:09 [kaz]

... with the assignment of mandatory or optional

11:59:00 [kaz]

q+

12:00:03 [kaz]

... the first entry (href) and the last entry (hreflang) from the table within section "6.5 Links" to be removed

12:00:34 [kaz]

ack k

12:01:09 [kaz]

kaz: all the information from the table is redundant, given there is already a table within TD

12:01:17 [kaz]

s/TD/TD, isn't it?

12:01:29 [kaz]

ml: Sebastian, you can create an issue about this

12:01:52 [kaz]

[adjourned]

12:01:56 [kaz]

rrsagent, make log public

12:01:59 [kaz]

rrsagent, draft minutes

12:01:59 [RRSAgent]

I have made the request to generate https://www.w3.org/2022/12/01-wot-arch-minutes.html kaz