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- 7:30 PM <apsdehal> Hello everyone, as per the rdf model, do we have range and domain available for our properties?
- 7:51 PM <DanielK_WMDE> apsdehal: Currently, the rdf mapping is incomplete, there are no statements in there. We'll pix that, but it's not there yet.
- 7:52 PM <apsdehal> So in future we have to make wikidata a complete rdf model?
- 7:52 PM <DanielK_WMDE> yes. no. the software will provide a "low level" rdf mapping. BUT:
- 7:53 PM <DanielK_WMDE> ...as to range and domain: not in the OWL sense. That just doesn't apply IMHO. Range and domain would require to also use OWL-like instanceof/subclass relations. But Wikibase/Wikidata does not contain such information.
- 7:53 PM <DanielK_WMDE> We have claims/statements, not facts. Having a *claim* that sais that X is-a Y is not the same as *stating* that X is-a Y.
- 7:54 PM <apsdehal> Thanks a lot for information, DanielK_WMDE
- 7:54 PM <DanielK_WMDE> So, in wikibase, we can, on the OWL level, assert that the thing on page Q123 is an instance of the Item class, and the item class is a siblcass of the Entity class. And the domain of the has-claim relation is Entity.
- 7:55 PM <DanielK_WMDE> but that'S all on the structural level. On the content level, we can't make such hard claims. We don't want to either. That's exactly what makes Wikibase more flexible and "deep" than (most) other knowledge bases
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