20:47:19 RRSAgent has joined #dxwgdcat 20:47:19 logging to https://www.w3.org/2018/01/31-dxwgdcat-irc 20:47:36 rrsagent, make logs public 20:47:53 present+ 20:51:30 trackbot has joined #dxwgdcat 20:51:41 trackbot, associate this channel with #dxwg 20:56:10 PWinstanley has joined #dxwgdcat 21:01:40 present+ 21:02:53 NicholasCar has joined #dxwgdcat 21:03:14 DaveBrowning has joined #dxwgdcat 21:04:05 RiccardoAlbertoni_ has joined #dxwgdcat 21:04:37 alejandra has joined #dxwgdcat 21:04:48 Stijn_Goedertier_AIV has joined #dxwgdcat 21:05:01 scribe? 21:05:43 present+ 21:06:01 present+ 21:06:12 https://www.w3.org/2008/04/scribe.html 21:06:23 Makx has joined #dxwgdcat 21:06:27 present+ 21:06:28 scribe: Stijn_Goedertier_AIV 21:07:09 TOPIC: meeting agenda 21:07:26 present+ Makx 21:07:33 present+ 21:07:51 https://www.w3.org/2017/dxwg/wiki/Meetings:DCAT-Telecon2018.01.31 21:08:23 SimonCox: wants to check if everyone is OK with the items on the agenda proposed by him 21:08:29 there was an addition from Andrea 21:08:48 SimonCox: silent approval on the agenda 21:08:54 https://www.w3.org/2018/01/24-dxwgdcat-minutes 21:09:08 TOPIC: 2. Approve minutes from last meeting 21:09:16 +1 21:09:19 0 21:09:21 0 21:09:24 +q 21:09:34 ack alejandra 21:09:40 +1 21:09:58 +1 (after adding Simon regret's) 21:09:59 ad regrets from SImon to last week's minutes ... 21:10:05 0 (wasn't there) 21:10:11 s/ad/add/ 21:10:11 +1 21:11:01 SimonCox: there was an implicit action on everyone regarding the revision of tags on the issues on GitHub 21:11:16 q+ 21:11:30 SimonCox: I have revised the tags on a couple of issues 21:11:54 q+ 21:12:02 AndreaPerego has joined #dxwgdcat 21:12:12 present+ AndreaPerego 21:12:32 q? 21:12:36 q+ 21:12:38 ack PWinstanley 21:13:33 SimonCox: the tags on the issues were inherited from the use cases in the UCR document, not from the requirements. Hence, the need for revising them. 21:13:49 ack NicholasCar 21:14:36 ack alejandra 21:14:41 arminhaller has joined #dxwgdcat 21:14:49 present+ 21:15:07 PWinstanley: the other sub-groups are looking at their own tags only 21:15:56 s/their own tags only/their tags too, and so we should harmonise at some point/ 21:16:36 NickolasCar and alejandra: have changed some tags and made corresponding comments on the issues 21:16:40 trackbot, associate this channel with #dxwg 21:17:09 +q to make a proposal about the labels 21:17:42 SimonCox: There is a risk of loosing traceability. At the same time, I am concerned about the processing getting too heavy. 21:17:50 ack alejandra 21:17:50 alejandra, you wanted to make a proposal about the labels 21:19:04 Alejandra: I propose to never remove tags that correspond to the classifiation of the requirements, but tags inherited from the use cases could be removed. 21:19:18 Proposed: ok to remove labels that were only inherited from UCs 21:19:28 and if someone has an objection, they can discuss on the issue 21:19:36 q? 21:19:53 +1 21:19:56 +1 21:20:05 +1 21:20:06 +1 21:20:06 +1 21:20:07 +1 21:20:12 +1 21:20:12 +1 21:20:26 +1 21:21:07 RESOLVED: ok to remove labels that were only inherited from UCs 21:21:55 yes 21:22:23 no progress yet 21:22:41 q+ 21:22:42 ... for me 21:22:50 Will get it done this week 21:22:50 +q 21:23:00 ack RiccardoAlbertoni_ 21:23:19 had some issues around the process, there weren't any to remove, but maybe some to add, but now the process is clear 21:23:32 https://docs.google.com/spreadsheets/d/1Rd5bR3lem6gsurR70e6oduuQb8VoQY2-AoBeqHKn9Ls/edit#gid=0 21:23:41 SimonCox: In the previous meeting Arminhaller, AndreaPerego, PWinstanley, and RiccardoAlbertoni_ agreed to each look at a number of issues and review them. 21:24:06 s/AndreaPerego, // 21:24:38 TOPIC: 4.2 Review DCAT requirements 21:25:38 ack alejandra 21:25:39 a/PWinstanley/PWinstanley, DaveBrowning, / 21:26:45 Idenfication: https://github.com/w3c/dxwg/labels/identification 21:28:03 RiccardoAlbertoni_: will submit his proposals for relabelling via the GitHub issues 21:29:41 q+ 21:29:41 SimonCox: brings up the agenda point: Associate requirements with existing DCAT classes or properties, where possible 21:30:28 present+ JaroslavPullmann 21:30:43 s/Idenfication/Identification 21:30:52 Jaroslav_Pullmann has joined #dxwgdcat 21:31:17 JaroslavPullmann: proposes that the relevant dcat properties become tags in the GitHub issue tracker 21:31:20 +1 21:31:22 +1 21:31:24 +1 21:31:24 +1 21:31:26 present+ 21:31:32 +1 21:31:33 +1 21:31:34 +1 21:31:35 q+ 21:31:36 s/properties/terms 21:31:38 +1 21:31:59 https://github.com/w3c/dxwg/labels 21:32:14 I can do that 21:32:42 RESOLUTION: the relevant dcat terms will be used as tags in the GitHub issue tracker 21:32:42 q? 21:32:53 ack DaveBrowning 21:34:10 q? 21:34:16 ack AndreaPerego 21:35:37 DaveBrowning: Agrees that a tag for issues for which the related dcat term is unclear or inexistent can be invented later 21:36:01 +q 21:36:42 AndreaPerego: points out that it some cases, the resolution of an issue can be not to change the current DCAT vocabulary 21:38:30 q? 21:38:45 ack alejandra 21:40:37 SimonCox: Refers to the use of requests related to issues on github 21:41:11 TOPIC: 4.1 Methodology for DCAT revision: principles 21:41:56 I created the labels for all the classes referenced in the DCAT vocabulary (https://www.w3.org/TR/vocab-dcat/): https://github.com/w3c/dxwg/labels 21:42:52 foaf:Person and foaf:Organization 21:43:46 SimonCox: The original design principles about how to construct the DCAT vocabulary, included strong dependencies with DC-TERMS and less strong on SKOS, and weaker on FOAF. No other vocubularies. 21:44:46 just adding to the minutes what I said before: last week I shared my screen and we went through Github looking at the issues, labels, Pull Request and review process 21:45:01 we agreed that the Pull Request needs further discussion 21:45:16 q+ 21:45:18 SimonCox: There is no relationship with PROV in the current DCAT, now there is an opportunity (or risk) to satisfy some of the requirements with a more formal alignment with PROV. 21:45:40 q? 21:45:42 q+ 21:45:44 ack NicholasCar 21:47:09 +1 to Nic's endurant/perdurant comment 21:47:14 ack AndreaPerego 21:47:33 +1 that we need the explicit distinction of entities and activities in dcat 21:47:34 NicholasCar: From his experience this would not cause problems. It may be needed to state explicitly that a dcat:Dataset is not a temporal thing. 21:47:35 +1 to the comment and there are requirements related to the temporal aspects 21:48:08 also see discussion here: https://github.com/w3c/dxwg/pull/94 21:48:33 q? 21:48:51 AndreaPerego: what does QB do relating to DCAT/PROV ? 21:49:14 q+ 21:49:25 q? 21:49:35 AndreaPerego: He is unsure to explicitly include subclassing in DCAT. We could followg the approach taken in RDF-DataCube, where no sub-classing of prov:Entity is needed. 21:50:41 ack NicholasCar 21:50:41 AndreaPerego: One of the successes of DCAT is that its semantics were loose. Not binding dcat with strong axioms makes it more broadly usable. 21:51:14 q+ 21:52:31 q+ 21:52:32 q? 21:52:36 +1 21:52:42 ack SimonCox 21:52:59 NicholasCar: Reasoning is not being used much (e.g. domain/range inference). Nonetheless it is still useful behind the scene. Also the way PROV works can be beneficial to DCAT. 21:54:11 q+ 21:54:23 SimonCox: I hear both sides: not tying things down on the other hand sub-classing from prov:Entity might even not be noticed by people not caring about inference. 21:54:24 q- 21:54:42 q+ 21:54:46 q? 21:54:52 ack arm 21:54:55 SimonCox: Nonetheless, there already are domain and range restrictions in DCAT (e.g. via DC-TERMS); so the current DCAT is not entirely innocent in this regard. 21:54:55 ack arminhaller 21:55:47 ack AndreaPerego 21:55:57 ArminHaller: sub-classing is actually easier to handle than domain/range or inverse properties 21:56:22 s/or inverse properties/ 21:56:44 s/sub-classing/sub-classing and inverse properties 21:57:01 q? 21:57:34 AndreaPerego: I agree there already are domain/range restrictions. And we already have problems with it. For example, dcat:contactPoint is linked to vCard:Kind, which cannot be linked directly to an organisation. 21:57:59 AndreaPerego: rather than using OWL, we could use other means such as SHACL 21:58:46 q+ to ask if we can briefly discuss this comment of mine: https://github.com/w3c/dxwg/issues/76#issuecomment-359124922 21:58:46 SimonCox: happy to have had some time to open this discussion 21:59:06 Use of SHACL would introduce further commitment, not just to an ontology but to an ontology+system 22:00:02 Agreed. But this might be required to ensure a consistent use of PROV and facilitate interoperability. 22:00:29 ack AndreaPerego 22:00:29 AndreaPerego, you wanted to ask if we can briefly discuss this comment of mine: https://github.com/w3c/dxwg/issues/76#issuecomment-359124922 22:00:45 SimonCox: invites everyone to go through the issues on GitHub in the coming week 22:01:47 AndreaPerego: brings up the point on relaxing the range restriction on dcat:contactPoint 22:02:09 SimonCox: suggests AndreaPerego to create a pull request for this 22:03:03 thanks, bye 22:03:06 Bye! 22:03:11 bye 22:03:13 I suggested to split the issue into more granular issues 22:03:16 present- 22:03:32 I'm referring to the issue: https://github.com/w3c/dxwg/issues/76 22:03:36 rrsagent, generate minutes 22:03:36 I have made the request to generate https://www.w3.org/2018/01/31-dxwgdcat-minutes.html Stijn_Goedertier_AIV 22:03:36 rrsagent, draft minutes 22:03:36 I have made the request to generate https://www.w3.org/2018/01/31-dxwgdcat-minutes.html SimonCox 22:03:47 there could be a more specific issue for the agent roles 22:03:53 Agreed, alejandra. 22:04:07 thanks - wanted to make sure it is in the minutes 22:04:20 rrsagent, draft minutes 22:04:20 I have made the request to generate https://www.w3.org/2018/01/31-dxwgdcat-minutes.html alejandra 22:05:02 agenda: https://www.w3.org/2017/dxwg/wiki/Meetings:DCAT-Telecon2018.01.31 22:05:17 meeting: DXWG DCAT subgroup teleconference 22:05:31 chair: SimonCox 22:06:04 rrsagent, draft minutes 22:06:04 I have made the request to generate https://www.w3.org/2018/01/31-dxwgdcat-minutes.html SimonCox 22:07:35 RRSAgent, draft minutes v2 22:07:35 I have made the request to generate https://www.w3.org/2018/01/31-dxwgdcat-minutes.html AndreaPerego