Denny,
I agree this is too early. CC4 being on the way, I believe the best option would be not to opt for a temporary licence and just wait until CC-BY-SA 4 can be used. This would seem to fit into the wikidata agenda, whouldn't it?
PS: Regarding compat between ODBL and CC-BY-SA, it is still a longly debated subject that nobody did a real case for yet with v3, but I believe ODC people are working on ensuring the compat at least with v4
Benjamin Ooghe-Tabanou
On Sat, Aug 4, 2012 at 10:31 PM, Denny Vrandečić denny.vrandecic@wikimedia.de wrote:
Benjamin, all,
taking from the beginning a license like ODBL would make it hard or even impossible to switch later to, e.g. CC-BY-SA 4.0, which might be a more natural choice since the rest of the WMF projects are mostly licensed under CC-BY-SA. ODBL and CC-BY-SA are not mutually compatible.
The question of a license is complicated, has wide implications, and deserves a much wider discussion in a community that does not exist yet. Unlike any other license, CC-0 allows us to later change the license. Also, CC-0 makes it easiest to include the content from Wikidata in the Wikipedias and anywhere else, which is great for the start.
CC-0 seems to me the only choice that would allow us to delegate the proper discussion about the license into the future, when the community is actually there. Any other license would make such a discussion impossible.
I think such a discussion can be prepared now, and arguments can be gathered for possible licenses, but it can not be decided now -- it is simply too early.
Best regards, Denny
2012/8/4 Benjamin Ooghe-Tabanou b.ooghe@gmail.com:
From my understanding, yes, it won't be possible to import data from Wikipedia infoboxes etc. into a CC0 WikiData. (At least under European Union law, where databases are protected by copyright)
The answer from Denny Vrandečić was: "Wikidata does not plan to extract content out of Wikipedia at all."
The problem, I think is, that Wikipedieans just expect that this is exactly what WikiData is actually meant for - to absorb the data stuff from Wikipedia. And on the other hand: how useful is WikiData, if you tell the Wikipedians, that they are not allowed to move data from Wikipedia into WikiData?
This is the reason why I recommanded from the beginning to adopt for WikiData not the "no-restriction at all" CC0 licence but one fitted to data and respectfuil to Wikipedia's general choice of creating a common good of knowledge by ensuring the need to share the reused information (share-alike clause of CC-BY-SA) : the Open Database Licence (ODbL) from the Open Knowledge Foundation does exactly this and is already being used by ma,ny people,; including official cities or regions for example here in France. http://opendatacommons.org/licenses/odbl/ Unfortunately it looked back then like the decision was being taken without any real debate when it should be at the center of the project's grounds...
Best,
Benjamin Ooghe-Tabanou from Regards Citoyens http://www.RegardsCitoyens.org
Alex
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