[Geowanking] OGC Rights Management Summit
steve at asklater.com
Sun May 31 07:55:24 PDT 2009
On 31 May 2009, at 15:49, Dan Brickley wrote:
> On 31/5/09 11:41, SteveC wrote:
>> On 31 May 2009, at 07:10, Marc Wick wrote:
>>> There are fundamental differences between source code and data.
>>> Share-alike code does not prevent you from building complex
>>> applications, whereas share-alike data is a show stopper for
>>> not absolutely trivial.
>>> "..., OSM doesn't even let you do mashups." 
>>> I understand that OdbL is trying to address and alleviate some of
>>> these issues. Unfortunately I fear that I am not going to understand
>>> 'kafkaesque' legalese and I prefer licenses that I can understand
>>> without having to consult a lawyer. Maybe somebody wants to take the
>>> opportunity and explain in a few words how OdbL is supposed to work?
>> I said the process was kafkaesque, not the license itself. It
>> always is,
>> look at the GPLv3 process.
>> The ODbL looks a bit like CC-BY-SA for data, except that if you make
>> something with the data (say, a printed map) then that 'produced
>> can be licensed however you like so long as you don't reverse
>> the data back from that.
> Who is "you" in this last phrase? If I (Dan) make a lovely map, and
> publish PDF, GIF, JPEG and SVG versions of it online, that's OK? But
> if the SVG version had fancy smart markup in it such that it could
> be treated programmatically as geographic information, that would be
> problematic? Am I (Dan) discouraged from making such an
> accessibility-friendly version of my map available? Or are others
> simply discouraged from making certain forms of re-use of that data?
> (eg. tools for partially sighted users who might want non-visual map
Let me be clearer - if you reverse engineer the data back out of a
produced work (and by the way SVG _might_ be considered a derived
database rather than a produced work) then that data is under ODbL. So
you can't take the database, make a JPG map, write some software to re-
extract the vectors and then license those how you like, they're still
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