[OSM-talk] ??? Compatibility of OSM w/ CC-BY-SA sources ???

[Henk Hoff]

2009/12/7 Paul Houle <paul at ontology2.com>

>    My major concern with a license change is compatibility with
> CC-BY-SA sources such as dbpedia,  wikipedia,  etc.
>
>    In the short term I'm primarily concerned w/ displaying slippy maps
> to display CC-BY-SA and PD-derived coordinates and shapes on.  That's
> one issue.


A slippy map is an image (a creative work bases on factual data [= OSM]),
which may be CC-BY-SA or any other license of your choice.
If the coordinates and shapes you want to show on the map are in a different
and separate database, you're fine. ODbL makes distinction between
collective and derivative databases. This example is the first.


> Another,  longer-term,  issue would be the construction of
> new products based on automated reasoning applied to ways in OSM.
>
> This sounds like a derivative database. As long as you make this database
publicly available under a compatible license as OSM you're fine.


>    Note that freebase seems to be safe to merge with OSM data,  but I'm
> not sure if using OSM data prevents me from pushing
> corrections/enhancements that are found in my processing chain back into
> Freebase.
>

Depends on whether the license of Freebase is considered a "compatible
license".


Cheers,
Henk
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