[VoCamp Discuss] Licenses...

[Peter Mika]

Dear All,

We just have a very successful VoCamp [1] behind our back, where we 
started to discuss among others the issue of representing popular 
microformats in RDF. This is a pressing question because large scale 
semantic platforms such as Sindice or Yahoo's SearchMonkey would like to 
treat microformats at the RDF level  and at the scale at which some of 
our systems work there is no possibility for reasoning. Therefore an 
agreement on the mapping is required. It doesn't matter as much what 
this agreement is, as long as it is an agreement ;)

You can see the outcomes of our current effort at [2]. One of the 
problems we spotted was related to rel-license. It appears we have at 
least three terms for license:

#1 http://www.w3.org/1999/xhtml/vocab#license
#2 http://creativecommons.org/ns#license
#3 http://purl.org/dc/terms/license

Unfortunately, none of the ontologies provide any clues as to how these 
relate to each other...

So my questions are: how are these related, in particular are any of the 
subproperties or equivalents of others? If yes, should any of these be 
deprecated in favor of others? And lastly, what should be the canonical 
mapping of rel-license in RDF?

Thanks,
Peter

[1] http://vocamp.org 
[2] http://semanticweb.org/wiki/Microformats_in_RDF