On 24 May 2010 16:42, Richard Fairhurst <rich...@systemed.net> wrote: > Robert Whittaker (OSM) wrote: >> My reading of 4.3 is that you would have to tell people that the >> image was derived from OSM and that the OSM database is >> available under ODbL. > > To comply with ODbL for data obtained from OSM, you have to at least provide > attribution to OSM. > > That does not preclude that the data may have other attribution > requirements, and it does not prevent you from fulfilling them.
Although it doesn't prevent any voluntary fulfilment, the ODbL terms give you explicit rights to use the database in any way you want without violating any copyright/contract/database rights in the database, as long as you follow the various requirements. There's no requirement to provide further attribution on produced works, so for produced works from an ODbL database you would not be violating any database rights were you to omit any other attribution requirements on produced works. The only other way to force users to use attribution would be via copyright on individual data items. But the proposal is to license the individual items in OSM under DbCL, which means there would be no additional restrictions there. Thus ODbL+DbCL grants users the right not to have to include additional attribution statements on produced works, provided they follow the rest of the requirements of ODbL. (This usually includes releasing the database that the work was produced from under ODbL, and the database may require additional copyright notices attached to it, but not the produced work. This link back to the database may be enough to satisfy some people's attribution requirements, but it won't necessarily cover all such requirements.) With no way to force users to add specific attribution text to produced works, if a database contains data that requires such attribution, I would conclude that the resulting database cannot legally be released under ODbL+DbCL. Were someone to do so, they'd be giving people a license to do stuff that they don't have the right to offer. (Kind of like releasing an image obtained under CC-By as CC0.) -- Robert Whittaker _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb