Hoi,

What I fail to understand in this discussion about licenses is what it is we achieve by being restrictive.

Our license is CC-0 so anybody can do with our data as they please. When we allow query with any and all external sources, there are activities that may not be possible because of a license. What are they?

When people link Wikidata and compare values, finding a difference is imho not licensed because it is original research.

When people link Wikidata and add Wikidata statements elsewhere, it is allowed because of our license.

When people link Wikidata and add items or statements to Wikidata only then there is a reason to respect the license of the external source and disallow it. I can imagine that we disallow update statements in Wikidata based on the license of the external Source.

For all other objectives it is the user who is responsible for his actions. Not allowing this is imho contrary to our motto: "sharing in the sum of all knowledge".

Thanks,

GerardM

On 1 April 2017 at 14:14, Maarten Dammers <maarten@mdammers.nl> wrote:

Hi Stas,

On 01-04-17 00:54, Stas Malyshev wrote:

Hi!

How about adding an ODbL licensed service? Would it be possible? I am
thinking about SPOI <http://sdi4apps.eu/spoi/> and their SPARQL endpoint
<http://data.plan4all.eu/sparql>..

ODBL seems to be in the same vein as CC-BY-SA, so if CC-BY is ok, that
should be OK too. Please add the descriptions to
https://www.wikidata.org/wiki/Wikidata:SPARQL_federation_input

Great new feature you have here! I would only add endpoints that use free licenses that are compatible with our terms of use ( https://wikimediafoundation.org/wiki/Terms_of_Use#7._Licensing_of_Content ). See http://freedomdefined.org/Definition for a more general explanation. This would include ODbL ( https://opendatacommons.org/licenses/odbl/summary/ ), but would exclude any ND (NoDerivatives) and any NC (NonCommercial) licenses.

Maarten

_______________________________________________
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata