RE: ODRL Profile for Linked Data

It certainly would be useful to have something as powerful as ODRL used to express permissions and restrictions on linked data.

We at the AP have looked at ways to make use of various data sets. Even when they appear to be licensed fairly permissively (typically using a Creative Commons license) we've generally found that we can't quite figure out exactly what we are and are not permitted to do, which is a barrier.

As a starting point for thinking about the requirements that providers of data might have, I think it is worth looking at Open Definition's "Guide to Open Data Licensing" http://opendefinition.org/guide/data/ This is not a technical work but instead tries to capture the IP rule for data and databases in various legal jurisdictions. It is incomplete and kind of fades out towards the end of the page, but it is something.

As someone who has worked a lot on the RightsML profile of ODRL (targeting rights expression for the media industry http://dev.iptc.org/RightsML), I wonder whether the profile will in fact end up being mainly a guide for how to use ODRL to license linked data, rather than requiring actual changes to the ODRL structures or common vocabulary? Of course, such a guide would be extremely useful.

Regards,

Stuart


-----Original Message-----
From: ssteyska [mailto:ssteyska@wu.ac.at] 
Sent: Wednesday, September 17, 2014 6:54 AM
To: public-odrl@w3.org
Subject: RE: ODRL Profile for Linked Data

Hi Victor!

I definitely think that we (the Linked/Open/(Closed) Data community) need such a profile. Although there are already some languages which offer the possibility to represent access rights/licenses/policies/.. as you pointed out, they usually only focus on specific parts of the challenges you mentioned (e.g. L4LOD for licenses).

To overcome this issue a standardized way to represent licenses, access policies/restrictions together with constraints and duties is - in my humble opinion - necessary (e.g. like the Provenance Ontology[1] for provenance information) and I would love to participate in such an undertaking!

best regards,
simon

[1] http://www.w3.org/TR/prov-o/


-------- Original Nachricht --------
Betreff: ODRL Profile for Linked Data
Datum:  Wed, 17 Sep 2014 00:18:53 +0200
Von:  Víctor Rodríguez Doncel <vrodriguez@fi.upm.es>
An:  <public-odrl@w3.org> <public-odrl@w3.org>


Dear ODRL community,

In the last months a growing number of voices within the Semantic Web community has claimed for a licensing language for Linked Data and data in general.

First, there is a vast amount of open data provided by public institutions whose open licenses are demanded in a digital format.
Second, the economical value of some Linked Data datasets is being now recognized, and there is the need for a language to publish offers with a price and richer conditions. Third, access to Linked Data is being normalized, and if there are to be access control systems, expressive policies specific for Linked Data will also be required.

These needs can be addressed by using ODRL if properly extended.
Therefore, we make a call for a proper ODRL Profile for Linked Data to exist.

We do not start from the scratch, there is a breeding ground. Different initiatives to define a language to license data have arosen [1-4] where RDF has been the language of choice.
While the terms in LDR [1] have been directly derived from the ODRL Ontology, the rest of them are in essence also compatible with the ODRL schema.
Thus, I wonder...
Is there enough support or interest to specify such a profile?

If this is the case, I suggest we start collecting requirements and features the new language should cover.

Regards,
Víctor

[1] LDR - Linked Data Rights - http://purl.oclc.org/NET/ldr/ns# [2] L4LOD - Licenses for Linked Open Data - http://ns.inria.fr/l4lod [4] LIMO - LIMO Vocabulary Specification 3.0 - http://data.opendataday.it/LiMo/ [3] ODRS - Open Data Rights Statement Vocabulary - http://schema.theodi.org/odrs/ [5] ccREL - Creative Commons Rights Expression Language - http://creativecommons.org/ns


-- 

Dipl.-Ing. Simon Steyskal
Institute for Information Business, WU Vienna

www: http://www.steyskal.info/  twitter: @simonsteys






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Received on Wednesday, 17 September 2014 20:16:13 UTC