Re: [OSM-legal-talk] License compatibility clarification

[John Smith]

On 25 June 2011 06:37, Ed Avis e...@waniasset.com wrote:
 Jonas Häggqvist rasher@... writes:

Is the CT/ODbL compatible with CC-BY-SA?

Say if an organization releases some data under CC-BY-SA, could we use it
(in the CT/ODbL future)?

 If this were possible, then there would be no need for any relicensing 
 exercise.
 The data released under CC-BY-SA would be the existing OSM map, and it could
 just be used directly with CT/ODbL.

 The fact that this is not happening shows that, as generally believed, it is 
 not
 possible to accept CC-BY-SA licensed data under a CT/ODbL regime.

ODBL has no minimum license that produced works can be placed under,
so the only licenses compatible with ODBL are PD/CC0

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Re: [OSM-legal-talk] License compatibility clarification

[Rob Myers]

On 24/06/11 20:35, Jonas Häggqvist wrote:

Is the CT/ODbL compatible with CC-BY-SA?


No. Notably, the ODbL isn't.


Say if an organization releases some data under CC-BY-SA, could we use
it (in the CT/ODbL future)?


No, as it's incompatible with the ODbL.


For extra credit, explain why/why not.


BY-SA and the ODbl are incompatible copylefts.

- Rob.


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