[OSM-legal-talk] use OSM data to select proprietary data

[Martin Koppenhoefer]

sent from a phone

> On 21. Dec 2019, at 03:01, Kathleen Lu <kathleen.lu at mapbox.com> wrote:
> 
> No, the guideline was explicitly about both individual results and aggregations. Individual results are insubstantial, so no ODbL obligations attach at all (attribution is one of the ODbL obligations).


while an individual result is probably insubstantial, a collection of individual results is not, so even if the individual result would not require attribution, recollecting them will, so somehow these strings must be attached to make sure the recipients are aware that collecting them would trigger share alike and attribution requirements.


> A collection of results is not a Derivative Database *unless* the collection is used as a general geodatabase


this is also something I’ve always struggled to understand, what is a “general” geodatabase? If I take all power network related information from OpenStreetMap, is this a general database? Or a list of all streets in France and the municipality they are in? Or all gas stations in the US with their postcode (but no location)?



> basically, if you tried to reverse engineer OSM by mass geocoding). That means that in normal circumstances, for a collection of results (an aggregation), the sharealike provisions *do not* persist.  


Isn’t the guideline going a big beyond what ODbL permits? I could reverse engineer a list of postcodes for streets from geocoding results, something that would create  a derived db under the ODbL (adaptation), and according to this reading of the guideline the result could be any license I want?

Cheers Martin