Arguing about licenses and their compatibility does not really help in this context since having formally compatible license (or the related argument that Wikidata is CC0 and therefore by definition the license is a non-issue) would not help. We have just seen in
https://www.openstreetmap.org/user/karitotp/diary/43824 that trusting third parties with assurances that data they don't actually own is all right to use does not work. So even if the Wikimedia foundation would specifically allow OSM to use certain information from Wikipedia without restrictions this is not really helpful since what they certainly will never do is give assurances that information in Wikipedia or Wikidata is free of third party rights. From the perspective of OSM things would actually be quite simple: We are based on original research and on-the-ground verifiable information. Any data that is not gathered through original research by the mapper should only be used if specific permission is given by whoever did the original research generating that data. That specifically excludes Wikipedia since Wikipedia is specifically not meant for collecting original research. Sticking to this principle would serve both in avoiding legal troubles and maintaining high quality of data in OSM. Unfortunately not everyone agrees to that. The Contributor Terms: https://wiki.osmfoundation.org/wiki/Licence/Contributor_Terms are somewhat solomonic in that regard - The contributors agree to only contribute data that is legally sound as far as they know - but nothing requires you to refrain from burying your head in the sand so to speak. Practically we have already seen lots of systematic copying of name tags from Wikipedia/Wikidata to OSM in the past years. You can see this from correlations in the naming patterns (including errors) and from the editing patterns (mappers adding names in many different languages they cannot possibly all have first hand information about). IMO the quality and data maintainance problems resulting from this are much more pressing than the legal issues. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
