On 18/04/11 22:23, Frederik Ramm wrote:

I'm an outsider to all this OS business but if you guys in the UK should really have been uploading data that requires attributing OS in every downstream product then we have a problem which has nothing whatsover to do with the license change. I can see *no* OS attribution on any of the major tile providers, including our own. Of course you can always go to the source and see from the object history that OS was involved, but that is a technique that you seem to discount above.

So either this is all a big misunderstanding, or nobody who used OS data until now has cared sh*t for the license.

Now I could understand if someone has always maintained that OS data was incompatible with OSM and thus refused to use it.

What I cannot understand is if someone has happily used OS data until now, in the full knowledge that nobody would attribute OS downstream anywhere, but now says they cannot sign the CT because they codify exactly what has been happening. Reality check, anyone?

Bye
Frederik

I actually agree with you Frederik, but the entire project so far overlooks the even bigger problem that CC-by-SA technically demands that every contributor is attributed in every derived work. Given that we ignore that issue, and that OS Opendata is compatible with CC-by and that is always compatible with CC-by-SA, we have just imported OS data into OSM because the larger attribution issue never was solved. So we are all equally guilty.

Now along comes ODbL, which was intended to address shortcomings with CC-by-SA. To say we were in technical violation of CC-by-SA doesn't justify us going along with ODbL if ODbL is flawed. If anything, we should strive to be more legally rigorous, not less. We do have an imperfect attribution on the wiki [1] for CC attribution. Agreeing to the CTs seems to be a bigger violation than our current practice, because it declares that the contributor has unlimited rights over the data (in order to grant OSMF that right too). Also, just because OS has not complained so far is not a reason to continue to abuse their license.

The solution, as far as I can see, is to improve attribution requirements (which would mean rewriting the CTs again) or to remove the data. I know Richard thinks Opendata doesn't pose a problem, so there may be other answers... I call for LWG to get their analysis of the Opendata legal situation done ASAP - that might put minds at rest or allow us to get on with fixing the problem.

Regards,

TimSC

[1] http://wiki.openstreetmap.org/wiki/Contributors


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