[OSM-talk] License plan

[Ed Avis]

MP <singularita <at> gmail.com> writes:

>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?

I don't think that would work.  If some parts of the data are CC-BY-SA, and some
parts are under a new licence, then the resulting database )or maps derived from
it) would be a derived work of both.  That means that it can be distributed only
under CC-BY-SA, and also that it can be distributed only under the new licence.
 The result would be that you cannot legally distribute it at all.

Presumably OSM chose CC-BY-SA to stop other organizations taking the OSM data
and distributing it under different conditions.  Even if only some of the data
in your work is OSM data licensed CC-BY-SA, you must distribute the whole work
under that licence, or not at all.  What's sauce for the goose is sauce for the
gander.

-- 
Ed Avis <eda at waniasset.com>