[OHM] OGL & OHM

[Albin Larsson]

Jeff, yesthat's the page I'm referring to. Also the OSM copyright page has
a list of some sources. We are not discussion the Open Game License, but
the Open Government Licence - Canada(Maby the same as the UK version?)?

I'm not saying that OGL and ODBL are incompatible, I'm saying that OHM and
OGL are incompatible. As far as I know there is no license for OHM, the
copyright page http://www.openhistoricalmap.org/copyright is not even
mention OHM. Some pages(for example the about page) is also crediting OSM,
why? are imports made? We have no good way to give attribution to all
OGL/(other license) sources nor have the people who want to reuse OHM data.

Much of the data extracted from map scans and such images could be licensed
under a PD like license. For example in Sweden all data extracted from maps
that are 15 years old or older is public domain. Not sure about scans and
images of maps. The imagery provided by NLS that we/OSM uses is for example
licensed under a non ODBL compilable license but we are allowed to
relicense the extracted data.

In my personal opinion I think that data such as the one that exists in OHM
should be licensed CC0, allowing people to reuse the data and by them self
use it with other licensed data if they need.

//
Albin

2015-05-26 10:38 GMT+02:00 Lester Caine <lester at lsces.co.uk>:

> On 26/05/15 07:44, Susanna Ånäs wrote:
> > I am in favour or creating a future-compatible environment, but we
> > should collect data about where the problems are.
> >
> > Source attribution should ideally not be tied to the issue of copyright.
> > I think it should be a requirement per se in this environment where the
> > usefulness of the data stems from knowing the provenance of the data.
> > That information should go down to feature level.
>
> Current data is at least traceable to on the ground objects, so someone
> claiming to 'own' the data has to have a good reason for it not being in
> the public domain already? Adding historic material such as when certain
> features were added which is not verifiable physically is starting to
> digress into that area. When doing verification of genealogical data,
> the sources of facts can be identified and the copyright on that source
> may affect it's usability. In my own case, the location is an important
> part of that data, and this is where the development of an area provides
> a cross reference to accuracy of the source data. This is where
> personally I'm looking for 'open source' access to map scans rather than
> paid for services as we have with much genealogical data today.
>
> The ideal situation would be a database of source material that can be
> used freely and attribution/provenance would simply be a reference to
> entry in that database?
>
> --
> Lester Caine - G8HFL
> -----------------------------
> Contact - http://lsces.co.uk/wiki/?page=contact
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>
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