The OpenStreetMap LicenceDair Grant

What is the licence?

In the beginning…

Which licence?

“We’d like to ensure that derivatives of the mapping data are also free… [but] if someone wants to make print copies of the OSM data or include it with a GPS unit then we're fine with that.”

- Matt Amos, osm-talk, Feb 2005

CC-BY-SA…

…doesn’t work

Copyright

Attribution

Share-Alike

Open Database Licence

Stronger Protection

Simpler Attribution

Simpler Attribution

Better Share-Alike

Better Share-Alike

Data Loss

Data Loss

Data Loss

Relicensing Process

It’s Not Perfect

Thanks!

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