[OSM-talk] Map markings

[David Sheldon]

On Mon, May 29, 2006 at 04:45:32PM +0200, Thomas Walraet wrote:
> David Sheldon a ?crit :
> >On Sun, May 28, 2006 at 11:24:12PM +0100, Oliver White wrote:
> >>Why are the maps marked "Copyright OpenStreetMap", when they comprise 
> >>data that users have uploaded under the CC-BY-SA 2.0 license?
> >
> >The maps are produced by OpenStreetMap, they are a derivative work of
> >the data that has been uploaded. 
> 
> My understanding is that I upload data to OSM with a CC-BY-SA license. I 
> don's give OSM the ownership of my work, I just give OSM the right to 
> use it according to this license.

Exactly. They used your work to produce a map. This is wholely their
work, though according to the licence you put on your data (CC-BY-SA)
they have to release their new map (the derived work) under CC-BY-SA.

Now there is the problem that you allude to later that they need to give
the original "author" credit. This could be a big problem for OSM. Even
a map of oxford probably has a good 15 contributors, and I don't see any
of them listed on the website when it shows you a map. In a way this is
a good thing as people keep mentioning the privacy implications of
attributing nodes to people.

Of course IANAL, and there is a question of if an automated program can
produce the artistic input that is required to produce a copyright etc,
but this is my reading of why this is. Oh, and where have you seen a map
that says Copyright OSM I didn't see one on the website.

David


-- 
"Consider a spherical bear, in simple harmonic motion..."
		-- Professor in the UCB physics department