On 28/11/12 17:58, Luca Martinelli wrote:
I share Denny's worries.
If we adopt ODBL, all WMF projects *will have to* add a note about structured data taken from Wikidata (like "data are released in ODBL" or similar), or they should be bi-licensed (CC-BY-SA 3.0 Unported + ODBL what.ever).
If we keep licensing Wikidata with a CC0 (which is, in fact, a PD-like license), that allows Wikipedia to re-use data with CC-BY-SA 3.0 Unported without any problem. Then, when CC-BY-SA 4.0 will be released, we can migrate ALL projects to the new license.
I don't see any other possibilities - I do know something about licensing and stuff, but I may be wrong.
Dual licensing under ODBL + CC-BY-SA? Or even ODBL + CC-BY-SA + GFDL, to keep the legacy license as well.
You could also ODBL with an additional permission to relicense it under CC-BY-SA or GFDL when aggregated with another work (slightly different than a dual licensing, but pretty much the same).