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

[Thomas Thurner]

Dear Martin,

if this mashup is sourced directly by the origin data, the thing is somehow manageable. As slong as you can name which part of your mashup comes from which source, you can apply the respective licence-text. Result will be, that you have a list of sources an the corresponding legal texts. So you have not only a data mashup, you get a legal mashup too.

If you want to go further with this mashup, you are only allowed to do this with the most restrictive license scheme mentioned. In practical this will be not feasible. Only if you have CC licences or CC-compatible licences, you are able to get meaning out of these legal mashup.

I think the CC-experts in this may answer more precicley.

LGT






Date: Sun, 12 Feb 2012 15:56:29 +0100 (CET)
From: Martin Kaltenb?ck <m.kaltenboeck at semantic-web.at>
Subject: Question regarding license issues with mashed up data from several sources using several licenses
To: "open-government " <open-government at lists.okfn.org>


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?

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.....

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...

Many thanks for support / infos / opinions - all the best - martin