W3C

RDF Data Shapes Working Group Teleconference

05 Feb 2015

Agenda

See also: IRC log

Attendees

Present
pfps, Arnaud, kcoyle, Dimitris, cygri, SteveS, BartvanLeeuwen, Arthur_Ryman, ericP, SimonSteyskal, labra, hknublau, michel, hsolbrig, TallTed
Regrets
Chair
Arnaud
Scribe
BartvanLeeuwen

Contents


<Labra> ??P3 is labra

<scribe> scribe: BartvanLeeuwen

Admin

subtopic: Minutes from previous meetings

http://www.w3.org/2015/01/22-shapes-minutes.html

http://www.w3.org/2015/01/29-shapes-minutes.html

RESOLUTION: Minutes of 22 January approved

RESOLUTION: Minutes of 29 January approved

subTopic: F2F

https://www.w3.org/2014/data-shapes/wiki/F2F2

Arnaud: We are still looking for someone to pickup the bill for food / drinks

Tracking of Actions and Issues

<Arnaud> https://www.w3.org/2014/data-shapes/track/issues/pendingreview

Issue-9

<trackbot> Issue-9 -- S7 does not appear to have a story -- pending review

<trackbot> http://www.w3.org/2014/data-shapes/track/issues/9

peter: delete the story

<Arnaud> PROPOSED: close ISSUE-9, deleting S7

RESOLUTION: Close ISSUE-9, deleting S7

Issue-17

<trackbot> Issue-17 -- S19 and S20 need information to distinguish from ontology recognition -- pending review

<trackbot> http://www.w3.org/2014/data-shapes/track/issues/17

pfps: this is about UI, since its in the charter my objection is not relevant

<Arnaud> PROPOSED: Close ISSUE-17, as is (would still be nice to have an example)

RESOLUTION: Close ISSUE-17, as is (would still be nice to have an example)

Arnaud: could we close more issues like this, there are still considerable amount of issues which require more data

<pfps> There is an easy solution for these. If the proposers don't fix their story then it should be dropped.

ArthurRyman: lets discuss the issues on the call, this way people will have to show up and explain

Arnaud: this is a time issue, it takes a lot

ArthurRyman: keep it only on 5 minutes max

User stories

<Arnaud> ack ??P11

<pfps> Actually I think that the document is ready for FPWD as is. FPWDs don't have to be polished or even agreed-on by everyone.

ArthurRyman: its a great idea to get something in shape with a good lead time

<pfps> Even if there are open issues the document can be published. It would be nice to note that there are open issues against a story, but that's not even necessary.

ArthurRyman: before the F2F
... we need a bit of time, so put it on the agenda

Arnaud: peter suggested its good enough for a FPWD
... for people new to W3C process, FPWD are not visible on the TR list
... from a time pov we are behind, we should have published the FPWD in December 2014
... a FPWD does not imply a commitment

SimonSteyskal: we at least want to clean up stories a bit
... we havent agreed on requirements yet

<pfps> Having a proposed FPWD ready next week would be the right timing to make a decision at the F2F and publish immediately afterwards.

SimonSteyskal: should we include them, and note we didn't make any decisions

Labra: I wanted to ask if my user story could be added
... pfps asked about constraints, thats why I added my story

<Arnaud> https://www.w3.org/2014/data-shapes/wiki/User_Stories#S38_Describing_and_Validating_Linked_Data_portals

<Arnaud> PROPOSED: add S38 to the the User Stories

<ArthurRyman> +1 to add it

<ericP> +1

<pfps> it's quite generic, so not reason to not have it

<pfps> +1

+1

<SimonSteyskal> +1

<TallTed> +1

<Dimitris> +1

<SteveS> +1

RESOLUTION: Add S38 to the the User Stories - status approved

Requirements

Arnaud: I'm proposing a new set of requirements to be approved
... I've updated the wiki with those who got approved last week

<Arnaud> PROPOSAL: Approve requirements 2.5.2, 2.5.3, 2.5.4, 2.5.10, 2.5.11, 2.6, 2.6.11, 2.7, 2.7.1, 2.7.4, 2.9

<ericP> https://www.w3.org/2014/data-shapes/wiki/ShapeRequirements#Declarations_of_Member_Properties

pfps: all the of the 2.5 ones are still hung up on the declaration issue

<Arnaud> https://www.w3.org/2014/data-shapes/wiki/Requirements#Declarations_of_Member_Properties_at_Classes

<cygri> ericP: pfps, is your concern that we’re making ontological assertions rather than shape assertions?

<cygri> pfps: yes.

ArthurRyman: I want to propose a wording change, if we replace declaration with 'description of expected'

pfps: there are a lot of wording changes to be made in the document then.

kcoyle: If I could understand this I would voulendteer to get the requirements in our document
... I have no idea what you talking about

pfps: if I was making a wording change, I would say 'constraints on properties' or shapes

Arnaud: we need a new wording which does not imply that we are talking about modeling

ArthurRyman: if we can get a substitute declaration then we should put it on top of the document

<ericP> https://www.w3.org/2014/data-shapes/wiki/ShapeRequirements#Assertions_of_Member_Properties

ArthurRyman: that declaration is not meant as a modeling language

Arnaud: doest assertions works for you ?

<SimonSteyskal> just drop "assertions of"

<SimonSteyskal> +1 to arnauds proposal

Arnaud: my proposal remove both assertion / declaration of

<ArthurRyman> +1

<kcoyle> +q

<Labra> I would propose description instead of declaration/assertion

kcoyle: if we drop declarations, is association with class still okay ?

<pfps> Fine by me

<SimonSteyskal> +1

Arnaud: I see light at end of the tunnel, but we need to change the document like ericP did in his version.

<SimonSteyskal> all? or just 2.5 family

Arnaud: postpone the approval of the requirements to next week

ericP: I made some substantial changes in the document, I might have misinterpreted something

Arnaud: separate the 2 issues, make the change we just talked about, and discuss the rest

<pfps> associating classes with constraints is not a problem for me.

Arnaud: ericP update your document and send it to the mailing list so people can have a look at it

<Dimitris> +q

pfps: I take a look at the current document to get the declaration out of it

<pfps> my plan is to edit the current document

<Dimitris> asked EricP to add his changes in the original document as comments

<pfps> I'm not volunteering to work on Eric's changed document

<pfps> I respectfully decline

<Arnaud> https://www.w3.org/2014/data-shapes/wiki/Requirements#Expressivity:_Literal_Value_Comparison

Eric's Revised LDOM Proposal

https://w3c.github.io/data-shapes/data-shapes-primer/no-class-templates.html

<pfps> "LDOM (Name and Acronym TBD) is an RDF-based modeling language"?

<pfps> "LDOM (Name and Acronym TBD) fills the role of schema language for linked data"?

<pfps> "LDOM declarations"?

<pfps> "LDOM models"

<pfps> "LDOM definitions"?

pfps: my problem is that it stil looks like a modelling language
... not a shape defenition language

cygri: I'm not sure the rework addresses the core issues
... If I have a language which puts contraints I can do modeling with it
... how does this connect to existing modelling languages

ArthurRyman: there is a dif between a modeling and a contraint language
... RDF provides the data model, RDFS/OWL put more information about inference on it, we still need a language to put constraints on the RDF data

cygri: we could use a constraint language for modeling, although awkward, it would work

<hknublau> +1

ArthurRyman: we can use shapes there were inferencing is not used

<cygri> +1 to the point that it doesn’t matter if we call it a modelling language or not

ArthurRyman: we are creating the analog of xmlschema for rdf

hsolbrig: any modeling has a metamodel of some sort, and a set of rules that apply to the meta model

Arnaud: it is clear that this issue is fundamental to our work

<Zakim> ericP, you wanted to propose that i go through ripping out "model"

<pfps> I expect that the edits will end up back at ... SPIN.

Summary of Action Items

Summary of Resolutions

  1. Minutes of 22 January approved
  2. Minutes of 29 January approved
  3. Close ISSUE-9, deleting S7
  4. Close ISSUE-17, as is (would still be nice to have an example)
  5. Add S38 to the the User Stories - status approved
[End of minutes]

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$Date: 2015/02/24 17:16:18 $