[OSM-legal-talk] Question about the license for the software that uses data derived from OSM's database

[Hugh Hulme]

Hey guys, I've got some questions...

Let's say I've taken the OSM data and turned it - using software I've
written - into Shapefiles so that I can pass that through another piece of
software to create data for my (commercial) application to use.

The Shapefiles then inherit the same CC-BY-SA license, but do I have to
distribute them and/or make them available? Is it sufficient to inform my
customers that they may have the data under that license if they want it? Do
I even need to do that? The data at this point is only used within my
organisation. What about the data generated (Voronoid cells, junction map)
from the Shapefiles which is specifically formatted for the code I've
written to take advantage of that data? It's in the SQL Server database that
each customer has, so presumably I need to put a note somewhere to say
they're free to use it if they want to - but do I have to make it available
online somewhere? Presumably the code which reads from the database is
exempt because it's not part of the data - and the data, being in a SQL
Server database, is not an integral part of the software. (Indeed, the
software is perfectly capable of running without that data, or any data at
all.)

Thanks,
  - Hugh
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