[OSM-legal-talk] Is the "data share-alike" road navigable?

[Mike Collinson]

At 08:39 PM 8/03/2007, Tom Chance wrote:
>Some people seem in favour of the following arrangement:
>
>1. Database of GPS traces - public domain, possibly with a license to get around EU database rights to achieve the same effect
>
>2. Database of nodes, etc. - share-alike licensed
>
>3. Maps produced from data - up to the creator (proprietary, share-alike, whatever) 


I am a strong proponent of a by-attribution license only, it is so much simpler or achieving OSM goals, but this theme appears is the one emerging piece of common ground I've seen so am happy to pursue it further.

The key thing about a license is to say what you want and be clear in the terms used.  Running it passed lawyers comes later.  

For saying what you want, the Talis license http://www.talis.com/tdn/tcl could be used almost as is (thanks Ian Davis) with some work on the internal(!) definition of "Derivative Work".  

I am not so sure about being about clear terms.  The OSM database is a database.  A rendered .jpg or a printed piece of paper is a map.  But what about things like an ESRI Shapefile, is a it map or database?  Can clear demarcation lines be made that can be presented to a lawyer?   I'd welcome comments, as a cottage entrepreneur, I can't afford ArcGIS or other big name GIS software producing these sorts of formats.

Mike