[OSM-legal-talk] Share-Alike requirements for other data sources?

[Jaime Crespo]

2012/4/18 Rob <smarttiki at gmail.com>:
> Greetings & Salutations,
>
> Thank you in advance for taking the time read and respond to this message.
>
> After reading numerous  webpages regarding the OSM license I am still
> unclear regarding Share-Alike implications.

Please be aware that you are mixing the (by the way, non-official)
interpretations of the CC-BY-SA and the ODBL. We are transitioning
from one to the other right now.

You should read the actual licenses, but the spirit of the licenses,
as I understand them (IANAL), is:

* Both require attribution
* CC-BY-SA requires share-alike for the published, derivative work.
Nothing is said about other rights, such as data or database.
* ODBL requires share-alike for the database (by publishing
modifications or method to obtain them), not for derivative works. All
rights are covered.

This is an oversimplification and not legal advice, again please read
the licenses or consult a lawyer if in doubt.

--
Jaime Crespo