W3C

WoT Discovery

29 November 2021

Attendees

Present
David_Ezell, Kaz_Ashimura, Kunihiko_Toumura, Michael_McCool Farshid_Tavakolizadeh, Tomoaki_Mizushima
Regrets
-
Chair
McCool
Scribe
FarshidT

Meeting minutes

Review minutes

McCool: last time discussed JSONPath and XPath

McCool: didn't come to a final conclusion about XPath

no objections to publishing

Issues and PRs

McCool: terminology and use case cleanup in discovery

McCool: in Profiles, they intend to make self-describing mandatory with well-known URLs. It is just for HTTP

Farshid: Ben has some concerns about the limitation in use of well-known URLs in a system which exposes multiple TDs

McCool: we need to look into the spec to see if it prevent the use of base paths

McCool: one problem is that well-known path should be sufficient to find the final endpoint given the IP or hostname. So basepath is not useful.
… we could consider returning an array if multiple TDs are involved.
… we could end up with scalability issues if there are many TDs

XPath

https://github.com/w3c/wot-discovery/issues/238

McCool: documenting the discussion on issue...
https://github.com/w3c/wot-discovery/issues/238#issuecomment-981738436

Moving terms to Architecture

https://github.com/w3c/wot-discovery/pull/241

Toumura: Only Enriched TD is left

McCool: Any reason why Enriched TD is not moved as well?
… we can move that as well and leave no discovery terms in this spec

Toumura: will update the PR to move Enriched TD as well

Farshid: I've added a comment on the PR on arch-side about the open issue about discoverer term

McCool: Let's proceed with the PRs and we can discuss the term afterwards.

XPath

David: Concerned that JSONPath is not as powerful as XPath

TD/Thing ID

McCool: concern from the TD side about the use of TD.id as the identifier of TDs in discovery

PR242 (Add placeholder section for thing model)

https://github.com/w3c/wot-discovery/pull/242

Farshid: adding the section with editorial note only

merged

Issue 219 (Define role of "Discoverer/Registerer")

https://github.com/w3c/wot-discovery/issues/216

McCool: https://github.com/w3c/wot-discovery/issues/216#issuecomment-981772546
… to check the term definition

<kaz> [adjourned]

Minutes manually created (not a transcript), formatted by scribe.perl version 159 (Fri Nov 5 17:37:14 2021 UTC).