[Talk-GB] OSM with Wikidata: now covers UK and Ireland

Richard Fairhurst richard at systemed.net
Fri Mar 11 12:52:36 UTC 2016

Hi all,

Without wanting to be a rotten party-pooper, could I just raise the licence
issues with this?

Wikidata co-ordinate information is chiefly sourced from Wikipedia, which
claims to be CC-BY-SA licensed.

Wikipedia co-ordinate information is chiefly sourced from Google Maps[1].

Google expressly prohibits their map data being used "to create or augment
your own mapping-related dataset (or that of a third party), including a
mapping or navigation dataset"[2], which is what is proposed here. (There
are other relevant prohibitions.)

Wikipedia has a much looser attitude than OSM to copyright on factual
information for various well-rehearsed reasons. That's their call, but we
cannot simply take Wikidata's assertion of CC0 on trust. Neither CC-BY-SA
nor Google-owned compilations of factual data are compatible sources for

I am far from certain of the interplay of "substantial" and "insubstantial"
in Database Directive and ODbL terms here, and to what extent rights subsist
in data that has been compared but not directly copied. But it needs careful
thought, ideally with references to case law, which it doesn't yet appear to
have had.


[2] https://developers.google.com/maps/terms

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