[OSM-legal-talk] Exception in Open DataLicense/Community Guidelines for temporary file

[jynus]

2011/7/1 Tobias Knerr <osm at tobias-knerr.de>:
>> Most of these concerns could be alleviated by dual-licensing under both ODbL
>> and CC-BY-SA.
>
> I'm not fond of the ODbL and would be happy with a CT + CC-BY-SA
> solution (it could achieve most of the declared aims of CT + ODbL and
> avoid most of the problems), but dual-licensing would of course be even
> more convenient from the perspective of a data user.

Dual licensing has a really big problem for the project:
1) We release the data under CC OR ODbL
2) A third party uses data under only one of the licenses
3) Even if they are both "ShareAlike", the transformations made by
third party cannot be returned to OSM, as they are incompatible with
unused license

When Wikipedia changed it license from GFDL to CC, old texts remained
also GFDL, but new ones are only CC, because of this.

--
Jaime