On Mon, Jun 8, 2015 at 4:06 AM, Simon Poole <si...@poole.ch> wrote: > - individual facts extracted from wikipedia articles. From a WMF pov > unproblematic since "facts can't be copyrighted", from an OSM pov > problematic because they might have originally been extracted from a 3rd > party source and might be from a database rights pov, a substantial > extract of that source (for example POI data from google) if included > wholesale in OSM. > > - wikidata data: the WMF claims no database rights in the collection of > individual facts and the reasoning for CC0 is based on the "facts can't > be copyrighted" doctrine. In other words, we could wholesale import > wikidata in to OSM from a WMF pov, however as already said, the > provenance of the data is unclear and has the same issues as facts > extracted from wikipedia articles. @Eugene I doubt if the WMF was > actually thinking of DCMA requests against wikidata content in the > published policy, as following one would damage their stance on facts > not being copyrightable. In any case it is clear that they have not been > policing their sources as SomeoneElse points outs. >
Note that I am quite aware of the issues surrounding adding data from Wikidata wholesale *into* OSM. I actually pointed this out during my presentation at last year's Wikimania about OSM and Wikimedia collaboration/cooperation: https://commons.wikimedia.org/w/index.php?title=File:Wikimedia_and_OpenStreetMap_%28Wikimania_2014_presentation%29.pdf&page=50 For this reason, I agree that we can't use Wikidata as a wholesale source for OSM unless we are sure of the provenance of the data and its compatibility with ODbL irrespective of Wikidata's CC0 license. On the other hand, I don't think this should prevent third parties from mixing and matching Wikidata with OSM to produce an ODbL-derived database given that they are aware of the risks (aka legal minefield that you pointed out before).
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