Licence/About The Licence Change
About The OpenStreetMap License Change
The OpenStreetMap project is proposing to move to a new license, known as the Open Database License (ODbL) which would replace the existing CCBYSA license due to problems with the CCBYSA license when applied to data. The license is intended to clarify the terms under which people make contributions to the project and the terms under which people can use the data. It is a basically a share alike license for data.
The Foundation supports the adoption of this license and has reviewed it with their lawyers.
The initial change over phase has begun in March 2010. New contributors are being asked to license their data under both the new and old license during a transitional period. We will then begin asking existing contributors to re-license their contributions under the new license. Once a critical mass has been achieved, the old license will no longer be used on the current database. Prior copies of the database will be continue to be available under CC BY SA as long as there is demand.
The Foundation's License Working Group presented a proposal document to the members, who accepted it by vote in December 2009. A summary was also presented at the State Of The Map 2009 conference. This process is documented here. We also welcome any review and comment by other bodies working in the open intellectual properties rights arena, and have published an open letter asking for their views.
The license remains firmly rooted in the attribution, share-alike provisions of the existing Creative Commons License but the ODbL is far more suitable for open factual databases rather than the creative works of art. It extends far greater potential protection and is far clearer when, why and where the share-alike provisions are triggered. There are further reasons for moving away from CC BY-SA here.
Acceptance and Implementation Process
OSMF members have voted on whether they wish to put the current version of the new license to the community for adoption and then begin the adoption process itself. The results from 270 members polled are:
|Approved the process:||132|
|Did not approve the process:||16|
More information including use cases and open issues is available on the OSM wiki.