> This will be a particular problem if this happened with someone who made > lots of changes and then went off in a huff for some reason.
What about data donated by varous organizations? In these cases, the user that uploaded them usually just "merely" converted the data from another format (possibly adding some manual cleanup, and thus copyrightable, etc ...), but the major contribution is from the organization itself. This won't be problem in case of PD sources (for example from various government agencies, as their output is "automatically" PD in many countries), but may pose a problem with private companies donating data (they may or may not be happy with the license change) As for the new license - it's 10 pages of legalese, so I'd expect once we start asking users about it, there would be some human-readable excerpt nearby. As for the people who can't be reached/refused to accept new license - what about tagging such data with some tag like "license=cc_by_sa" to warn people that this part is licensed otherwise and keep the data in database? This should be acceptable for most contributors (no data lost) but may be a bit troubling for people who want to use the data (if cc-by-sa is not good for them they would have to filter these out). Also, those cc-by-sa parts could be replaced in time by "properly licensed" data (someone would redraw/reimport the affected area or alike ...). Martin _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
