W3C

– DRAFT –
RDF-star WG meeting

21 May 2026

Attendees

Present
AndyS, doerthe, Dominik_T, gtw, ktk, lisp, niklasl, olaf, ora, pchampin, pfps, Souri, tl, Tpt
Regrets
fsasaki, TallTed
Chair
ora
Scribe
ktk

Meeting minutes

Approval of last week’s minutes: 1

ora: Comments on the minutes?

<ora> PROPOSAL: Approve minutes from 2026-05-14

<ora> +1

<pchampin> +1

<niklasl> +1

<ktk> +1

<Dominik_T> +1

<gtw> +1

<tl> +1

<lisp> +1

<olaf> +0 (didn't attend)

<Souri> +0 (did not attend)

<AndyS> +1

<Tpt> +0 (didn't attend)

RESOLUTION: Approve minutes from 2026-05-14

Review of open actions, available at 2

niklasl: A separate topic for "Create note on triple term owlification" would be good, ideally with Enrico in the call

ora: I contacted ISWC organizers, have not heard back yet

Review of open PRs, available at 3

<AndyS> w3c/rdf-turtle#145

<Dominik_T> w3c/rdf-tests#322

<AndyS> w3c/rdf-tests#322

pchampin: do we really need the content-length on that? The PR itself makes sense otherwise

gtw: merging is fine, it cleans up existing code. But I'll create a PR that cleans this up.

AndyS: no content-length would be safer

<pchampin> https://github.com/w3c/rdf-concepts/pull/275/changes

pchampin: maybe we should remove that section and move the definition of quads to N-Quads. If we leave it in RDF Concepts, we should have a warning that the definition of quad and dataset (a default graph with a collection of named graphs) is not the same

AndyS: maybe we could talk about quads, instead of saying dataset is a set of quads
… I'm also not sure if something in a non-normative section is helpful.

ora: should we revise that?

pchampin: I'll adjust the PR

ktk: do we have tests for the new text-direction?

<niklasl> https://github.com/w3c/rdf-tests/tree/main/sparql/sparql12/lang-basedir

AndyS: as far as I can see there are no tests on SPARQL for text direction.
… sorry there are

AndyS: if someone could contribute for syntax, that would be great.

pchampin: What's the policy for adding new tests if they are compliant with something that a SPARQL 1.1 processor should do.

Tpt: If the test is covering something that is well-specified in SPARQL 1.1, it should be there. If it is something that was clarified for SPARQL 1.2, it should be there.

ora: I agree.

<ora> w3c/rdf-tests#336

Tpt: I can't remember on what it was blocked, I could try to rebase them.
… I remember discussing with AndyS some styling details.

ora: let's start next week with a working meeting where we go through PRs

Identifying issues to solve before CR 4

pchampin: I checked HR tracker for Turtle/Quad/Trig... we never finished them and submitted them to the TAG
… we should ping the TAG once we completely addressed the issues on N-Quads
… We should do that in the chairs-meeting.
… We did not do that for the TAG.

ora: how about w3c/rdf-star-wg#189

niklasl: I think pchampin wanted to take care of that.

pchampin: I think it's about TAG concerns
… it's part of that addressing that we just talked about

ora: where are we with implementation reports?

AndyS: is the formal request not part of CR?

pchampin: it is

AndyS: do we want the report of everything or per document?

ora: what's the policy from W3C on implementation reports?

pchampin: not strictly codified, it's up to us as well

ora: should we advertise?

AndyS: we didn't sort out all tests yet. I would propose to do it all at once.

<pchampin> AndyS, by "everything at once", I assume you mean "everything RDF"...

<pchampin> ... not RDF+SPARQL

AndyS: how about we set a date and work for that (for everything except SPARQL)

ora: how about we work on the tests next week.

niklasl: we can timebox the owl-ification to 10-15 mins so we have additional time

pchampin: if we want that, we have to work on RDF/XML
… we need to work out something for RDF Schema as well.
… We don't have any tests for RDF Concepts as well. We said we have the tests for RDF Semantics and at least one serialization.
… I need to dig out how the previous WGs did that.
… Maybe the process was not as strict in those days, I'll check.

AndyS: I don't think there was anything specific for RDF Schema. I'm not sure what implementing this even means.
… Maybe it means review instead of execute.

pchampin: DCAT showed that it's used among different organizations, that's how they managed that.
… Maybe demonstrating is "implementation of". I'll need to think about this and consult with Ivan Herman
… We will need a story for RDF Schema as well for implementation.

<pchampin> I think it is under RDF Semantics

niklasl: Are the axioms that the RDF representation contains, are they in the document. I'm thinking whether or not could the tests do something.

Any Other Business (AOB), time permitting

<niklasl> highlightjs/highlightjs-rdflang

<niklasl> https://github.com/w3c/rdf-common/compare/main...niklasl:rdf-common:styling

niklasl: when I wrote the OWL note, I added syntax highlighting to some of the sections. I tried to use the existing highlighter. I did a fork based on the original code.

<niklasl> Some highlighted examples: https://niklasl.github.io/rdf-struct-patterns/spec/#section-interop-prov-o

niklasl: It's static markup once the documents are snapshotted.

ora: it would be great to have that in our documents.

Tpt: how much do we want to follow ReSpec style? We have a lot of styling for tables & do not respect the styling for tables. Same for some boxes used.

<niklasl> +1 to Tpt's question

AndyS: SPARQL spec needs an end-to-end restyling.
… If someone could look at that this would be very good. Styling is currently old-fashioned and clunky.
… I wouldn't spend too much time on color coding, this is not part of the spec.

Tpt: I agree.

niklasl: I tend to agree, ReSpec highlighter does not support SPARQL & Turtle highlighters.

AndyS: I mean not using styling for SPARQL examples, just plain. Color does not have any meaning to it.

Summary of resolutions

  1. Approve minutes from 2026-05-14
Minutes manually created (not a transcript), formatted by scribe.perl version 248 (Mon Oct 27 20:04:16 2025 UTC).

Diagnostics

Succeeded: s/not tests/no tests/

Succeeded: s/everythin RDF/everything RDF/

Succeeded: s/Yvan Hermann/Ivan Hermann/

Succeeded: s/Ivan Hermann/Ivan Herman/

Succeeded: s/I have to drop now, sorry/

Succeeded: s/hear back/heard back/

Succeeded: s/saver/safer/

Succeeded: s/remove that session/remove that section/

Succeeded: s/addressing we just talked about/addressing that we just talked about/

Succeeded: s/think abou this/think about this/

Succeeded: s/weather or not/whether or not/

Succeeded: s/end to end/end-to-end/

Succeeded: s/SPARQL & Turtle highlighter/SPARQL & Turtle highlighters/

All speakers: AndyS, gtw, ktk, niklasl, ora, pchampin, Tpt

Active on IRC: AndyS, doerthe, Dominik_T, gtw, ktk, lisp, niklasl, olaf, ora, pchampin, pfps, Souri, tl, Tpt