[cc-metadata] How to negate cc:permits, cc:prohibits, cc:requires?

Nathan Yergler nathan at creativecommons.org
Fri Jun 19 13:14:23 EDT 2009


Hi Christoph,

In all the CC licenses, if Commercial Use is not explicitly
prohibited, it is considered allowed.  We've previously looked at
expressing this sort of additional information with OWL but haven't
released anything.

If there are revisions we should consider, I'd be open to proposals.

Nathan

On Fri, Jun 19, 2009 at 4:08 AM, Christoph
LANGE<ch.lange at jacobs-university.de> wrote:
> Dear all,
>
>  we are working on re-specifying the integration of the ccREL ontology into
> the mathematical markup language OMDoc (http://www.omdoc.org) in a more formal
> way.  Now I wonder: Is there any way of saying that some Permission does _not_
> hold (e.g. that distribution is not permitted, or should I rather say
> "prohibited"?), or that some Prohibition does not hold (e.g. that
> commercial use is not prohibited, or should I rather say "permitted"?) ?
>
> XY cc:permits cc:CommercialUse
>
> is not really intended by the current implementation of the ccREL ontology.
> So do you rather assume negation as failure?  I.e. that if "XY cc:prohibits
> cc:CommercialUse" is _not_ explicitly mentioned, then we assume that
> commercial use is not prohibited?  But, if so, wouldn't that conflict with the
> open world nature of RDFS?
>
> Thanks in advance for any hints,
>
> Christoph
>
> --
> Christoph Lange, Jacobs Univ. Bremen, http://kwarc.info/clange, Skype duke4701
>
>
>
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