18:55:03 RRSAgent has joined #shapes 18:55:03 logging to http://www.w3.org/2015/12/10-shapes-irc 18:55:05 RRSAgent, make logs rdf-data-shapes 18:55:05 Zakim has joined #shapes 18:55:07 Zakim, this will be SHAPES 18:55:07 I do not see a conference matching that name scheduled within the next hour, trackbot 18:55:08 Meeting: RDF Data Shapes Working Group Teleconference 18:55:08 Date: 10 December 2015 18:57:07 Dimitris has joined #shapes 18:57:26 access code is the meeting number? 18:59:23 scribe: simonstey 19:00:58 agenda: https://www.w3.org/2014/data-shapes/wiki/Meetings:Telecon2015.12.10 19:01:02 chair: Arnaud regrets: hknublau, ericP, hsolbrig 19:01:14 kcoyle has joined #shapes 19:01:36 Labra has joined #shapes 19:02:44 pfps has joined #shapes 19:02:51 aryman has joined #shapes 19:02:51 present+ 19:02:59 present+ 19:02:59 present+ 19:03:07 present+ 19:03:08 present+ 19:03:34 present+ aryman 19:04:05 present+ 19:04:56 I am having trouble with the webbed audio 19:05:08 s/webbed/webex/ 19:06:04 Me too 19:06:34 I can't hear anything... 19:06:45 you are not connected 19:06:46 that's because you're not on the call 19:06:48 to audio 19:09:35 present+ 19:09:40 topic: Admin 19:09:47 PROPOSED: Approve minutes of the 3 December Telecon: http://www.w3.org/2015/12/03-shapes-minutes.html 19:10:05 RESOLVED: Approve minutes of the 3 December Telecon: http://www.w3.org/2015/12/03-shapes-minutes.html 19:10:08 Looked good to me :-) 19:10:18 topic: VF2F5 19:10:48 Arnaud: based on the input I got last week, I revised the schedule but haven't filled it in yet 19:11:08 ... I already put the grid in place 19:11:36 ... 6h timespan / day for 3 days 19:12:20 schedule seems to be fine 19:12:26 ... lunch break is reduced to 30 mins 19:13:39 ... I wanted to spend some time on looking at the important issues to discuss 19:14:05 ... may everyone have a look at that list and check whether something is missing 19:14:13 http://www.w3.org/2014/data-shapes/wiki/F2F5#Important_issues_and_meta-issues_to_be_addressed 19:14:49 I think that the abstract classes thing is meta-model, but a change of title would be fine. 19:17:17 [aryman will look for the issues relating to abstract classes currently defined in shacl.ttl] 19:17:41 I fiddled with that item 19:18:16 Arnaud: my goal is to update the agenda with specific work items by the end of the week 19:19:34 ... please note whether you are available for the VF2F at http://www.w3.org/2014/data-shapes/wiki/F2F5#People_planning_to_participate_remotely: 19:20:02 ... I added categories to the tracker 19:20:22 topic: ISSUE categorization 19:20:56 Arnaud: issues can now be categorized according to https://www.w3.org/2014/data-shapes/track/products 19:21:33 ... maybe some of the meta issues could be used as categories 19:21:59 +q 19:22:05 ack simonstey 19:23:38 Arnaud: already existing issues can also be recategorized 19:23:50 topic: ISSUE-103: Syntax simplifications 19:23:53 issue-103 19:23:53 issue-103 -- Can we further simplify the syntax of some constraint types? -- open 19:23:53 http://www.w3.org/2014/data-shapes/track/issues/103 19:24:17 +1 19:24:33 q+ 19:24:57 Arnaud: the syntax we currently have is pretty heavy 19:25:39 ... which is an area where e.g. ShEx proposes a way more compact syntax 19:26:03 ack aryman 19:26:44 aryman: I'm in favor of the simplification, but I don't agree with the proposal on how to simplify the definition of closed shapes 19:27:04 q+ 19:27:07 ... I would lift the closed property to be a property of the shape rather than one of the constraint node 19:27:28 ack pfps 19:28:09 pfps: RDF encoded syntaxes are ugly.. there is no way around that 19:28:26 q+ 19:29:13 ... I would like to have some sort of a principle onfwhat's going on here 19:29:13 q+ 19:29:28 s/onfwhat/of what 19:29:56 Arnaud: how much do you need to be able to say whether that makes sense? 19:30:00 pfps: everything 19:30:28 ack kcoyle 19:30:40 ... it's not about beautifulness but if it's round 19:31:22 I do agree that a move away from classes to properties is a good thing, but this should be done uniformly 19:31:26 ack aryman 19:33:00 +1 to arthur's approch 19:33:07 s/approch/approach 19:33:15 aryman: I think we could go down the general direction of the proposal and let the editor's writing it down thoroughly 19:34:06 +q 19:34:56 ack kcoyle 19:35:46 q+ 19:36:05 ack pfps 19:36:09 kcoyle: something has to be done to clarify what the default is CWA/OWA 19:36:44 [remove cwa/owa] 19:38:06 q+ 19:38:47 ack aryman 19:39:33 kcoyle: we really have to make it clear under which assumption we are operating, either cwa oder owa 19:42:05 Arnaud: we may fall into the realm of best practices, explaining what implications certain ways of representing shapes have 19:42:26 q+ 19:42:31 ack pfps 19:42:46 pfps: currently both shapes and constraints can be closed, afaik 19:43:45 how will two separate closed constraints in a shape work? 19:43:53 q+ 19:44:03 ... but the name "closedshapeconstraint" may be misleading 19:44:05 ack aryman 19:44:17 aryman: in the current spec, the closeness is a property of a shape 19:46:01 ... but it depends on other definitions thus shouldn't be treated in the same way; I would make it a seperate kind of shape 19:46:01 agreed, having closed sit on a constraint is likely to lead to confusion. instead there should be a separate construct that closes a shope 19:46:19 ... we have to be sensible about the default 19:46:59 +1 19:47:02 +1 19:47:05 +1 19:47:38 PROPOSED: Close ISSUE-103, accepting the proposed simplification except for closed shapes which should be treated differently 19:47:41 +1 19:47:45 +1 19:47:46 +1 19:47:53 +1 19:47:58 +1 19:47:58 0, major syntax changes need to be looked at only when there is a complete proposal 19:48:26 +1 19:49:02 q+ 19:49:08 ack pfps 19:49:18 Arnaud: we can reopen this issue whenever we think it's necessary and could even revoke the resolution 19:50:04 RESOLVED: Close ISSUE-103, accepting the proposed simplification except for closed shapes which should be treated differently 19:50:15 topic: ISSUE-104: Union ranges 19:50:20 issue-104 19:50:20 issue-104 -- Should sh:datatype and sh:class have better support for OR? -- open 19:50:20 http://www.w3.org/2014/data-shapes/track/issues/104 19:51:25 I agree with pfps comment: "If this change is going to be made, then every case should be examined to see whether it deserves to have the same feature." 19:52:19 pfps: in a reasonable syntax there are ands and ors 19:52:26 ... with a nice and clean syntax 19:53:11 ... but we have the RDF pig, and we are proposing to shrink it by cutting out some fat but it may gets unrounder 19:53:32 ... the () trick only looks nice in turtle 19:54:08 ... here we would interpret rdf:list as or, but somewhere else we might treat it as and 19:54:46 ... so one would have to look over all possible occurences of such lists and check whether the comply with the proposed semantics 19:54:51 q+ 19:55:02 ack aryman 19:55:46 aryman: ofc it's just syntactic sugar, but we have to get the readers to actually read our spec (i.e. make it more appealing) 19:56:18 ... it's hard to go from nothing to full generality 19:57:53 q+ 19:57:56 ack pfps 19:58:39 [trade off between ease of use and ease of misuse] 19:58:47 PROPOSED: Yes, as suggested in the ISSUE (use rdf:Lists for multiple options) 19:59:04 PROPOSED: Close ISSUE-104, as proposed. 19:59:25 +1 19:59:35 +q 19:59:37 +1 19:59:45 ack simonstey 19:59:46 +.5 20:00:46 -0 I think that invisible or is too dangerout 20:00:54 0+ 20:00:57 s/dangerout/dangerous/ 20:01:38 q+ 20:03:01 +1 20:03:05 the word is "abstain" 20:03:07 PROPOSED: Close ISSUE-104, as proposed but every case should be examined to see whether it deserves to have the same feature. 20:03:15 +1 20:03:26 +0 20:04:25 kcoyle_ has joined #shapes 20:04:32 +1 20:04:39 ack Dimitris 20:05:12 i lost power, back but just on irc 20:05:38 Dimitris: this may cause some difficulties for engines to parse the value of sh:class/datatype 20:05:55 ... I would be happier to have a seperate property for this 20:06:43 we could also approve it for now and dimitris raises an issue for that 20:07:05 Close ISSUE-104, as proposed but by changing the SHACL properties to sh:classOneOf and sh:datatypeOneOf 20:07:32 q+ 20:07:36 ack aryman 20:07:44 that is certainly more obvious 20:07:49 +0.5 20:08:34 aryman: we should may use the term "in" to be consistent with our current spec 20:09:05 PROPOSED: Close ISSUE-104, as proposed, using the properties sh:classIn and sh:datatypeIn, and noting that every case should be examined to see whether it deserves to have the same feature. 20:09:14 like sh:in 20:09:20 yes 20:09:22 +1 20:09:23 +0.2 20:09:37 +1 20:09:45 +0.5 20:09:48 +0.5 20:09:52 +.8 20:10:00 +0.i 20:10:22 In my opinion, anyy syntax thrust should be on a compact syntax, not on trying to make the RDF encoding less ugly 20:10:36 RESOLVED: Close ISSUE-104, as proposed, using the properties sh:classIn and sh:datatypeIn, and noting that every case should be examined to see whether it deserves to have the same feature 20:10:39 q+ 20:10:52 ack aryman 20:12:18 aryman: this discussion and pfps' concerns maybe mean to discuss the notion of a compact syntax for SHACL at the VF2F 20:12:39 Arnaud: is there any other issue we should discuss? 20:12:54 http://www.timeanddate.com/worldclock/fixedtime.html?msg=RDF+Data+Shapes+meeting&p1=175&iso=20151215T1015 20:16:10 pfps: google phone is free, at least for north america 20:17:58 is Foogle Voice the same thing as Google Phone? 20:18:10 s/Foogle/Google/ 20:18:16 [discussing reliability of and alternatives to webex] 20:19:09 trackbot, end meeting 20:19:09 Zakim, list attendees 20:19:09 As of this point the attendees have been pfps, simonstey, Arnaud, Labra, Dimitris, aryman, kcoyle, TallTed 20:19:17 RRSAgent, please draft minutes 20:19:17 I have made the request to generate http://www.w3.org/2015/12/10-shapes-minutes.html trackbot 20:19:18 RRSAgent, bye 20:19:18 I see no action items