[Osmf-talk] Contributor Agreement is Dual Licensing

80n 80n80n at gmail.com
Tue Dec 15 19:22:41 UTC 2009


On Tue, Dec 15, 2009 at 10:36 AM, Frederik Ramm <frederik at remote.org> wrote:

> Hi,
>
> Gervase Markham wrote:
> > But surely that means that everyone who wants to use the combined data
> > has to do all the merging, rather than it being done once, correctly?
>
> No; if anyone fancies to play melting pot to the world's geo databases,
> he can do that (with all PD sources and mix ODbL-licensed OSM in and
> make the result ODbL). That guy can then stand up and claim to have it
> done "once, correctly" and allow others to use his melting pot under ODbL.
>
> >>> The position seems to have changed from "if we go to ODbL rather than
> >>> PD, we preserve share-alike" to "actually, we don't, but share-alike's
> >>> not important anyway. Go get all the data again! It won't take long."
> >>
> >> I thought you were talking about problems when re-incorporating
> >> downstream additions into OSM. What has that got to do with having to
> >> get data *again*?
> >
> > "Again" as in "these other people have gone and gathered it, but now you
> > have to go and gather it as well (again; a second time) in order for it
> > to be included".
>
> I see. But I think there is a strong motivation for a downstream user to
> put his data directly into OSM instead of continuously merging it with
> updated OSM data sets, because that will make things easier for them.
>
> > How do I best tag things using the possible tags available to me, when
> > there are two or more options (footway=bridleway, access=horse,
> > whatever)? That's creative.
>
> As creative as the decision whether you pass the pothole on the left or
> on the right.
>
> > Unless you want to argue that there should
> > only be a single defined way to tag anything - and I'm pretty sure
> > that's a position you don't hold ;-)
>
> For me, that is as if you were claiming that it is a creative act of
> yours when you decide how many spaces you put before the opening <node>
> tag, or whether you write 49.0014 or 4.90014E+1 - different ways of
> expressing the same facts. Some of these ways may be better and some
> worse but that doesn't make them creative in my opinion.
>

An interesting test of creativity would be to compare the same area mapped
by two different people.  If there is no creativity then the results should
be fairly similar.

I certainly know of mappers who have a distinctive style (Ben in
Northamptonshire and TimSC in Surrey come readily to mind).

80n
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