[open-government] Question regarding license issues with mashed up data from several sources using several licenses

Mon Feb 13 11:37:05 UTC 2012

2012/2/12 Martin Kaltenböck <m.kaltenboeck at semantic-web.at>:
> Dear all,
>
> is there any guideline & info / experience available
> when mashing up data & information from several data sources
> that have different licenses / terms of use (no info about this)...
>
> So e.g. when putting together data from A) World Bank (that is free for re-use by terms of use),
> B) data.gov.uk (giving the Open Gov Data License - free to re-use by attribution)
> as well as C) another source that has a CC license and D) data that I have collected
> by myself via e.g. a questionnaire and D) data from a website that provides no clear
> terms of use information....
>
> 2 Use Cases to clarify:
>
> A) Publishing mashed up data & info from the given example sources above on a website
> called 'MashUp' (just an example title)
> Is it sufficient (legally) to mentioned the sources of every data set? And thats it?

IANAL but if the only requirement is attribution then, yes, that
should be sufficient.

> B) Providing these 'MashUp' again as a data set for further re-use (as e.g. XML or RDF)
> - Is there a guideline that for instance I am allowed to publish a certain range of data
> for further re-use without a restriction (as it is e.g. for music) etc.....

It depends on the amount of use. If you are within the relevant
"fair-use" portion (I quote that because, while fair-use per se does
not apply, a minimum taking requirement still is used for data in the
EU), then yes you should be able to do that.

> Or: is the better approach to mention the original source & the original license per part of the
> 'MashUp' data - what could become a huge effort if using lots fo data sources....
> or becomes impossible because I have mashed too much and the original source becomes
> unable to mention exactly...

In general, my recommendation is to have a sources page which you
could link to in each bundle of data you give out, or if on an API
where you don't want to add to every request, you could put it
prominently on the API reference page.

I certainly don't think it is necessary to include 50 url links to
source for each one line of data you give out.

Rufus

> Many thanks for support / infos / opinions - all the best - martin
>
>
> --
> Martin Kaltenböck, CMC
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>
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