[OSM-legal-talk] OSM based GPS navigations and ODbl license of OSM data

Karel Charvat Charvat.K at seznam.cz
Tue Jan 6 19:01:48 UTC 2015

I would like to study structure of data used in various GPS navigations 
based on OSM. As raw OSM data are not suitable for routing, I suppse, each 
implementation in GPS navigation needs some changes in the data. I suppose 
these modified datasets can be called Derivative Database by the definition 
in http://opendatacommons.org/licenses/odbl/1.0/

If derivative database or processed work is publicly used in some software 
tool, the license requires providing the derivative database to the 
recipients also in machine readable form.

OSM data are used for example by Be-On-Road. On http://www.beonroad.com/
(http://www.beonroad.com/) it is posible to download data for various 
individual countries in files with .bmd extension. I haven't found any 
specifications of this file format, so It is not possible for me to access 
and study the data. I can only use them in be-on-road navigation.

Are the developers of Be-On-Road fullfilling their ODbl licenseĀ  obligations
by providing their data only in files with unknown format?



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