Re: [xml-dev] Media Types, Purposes, Natures, and XSL Transforms

[Jonathan Borden <jonathan@openhealth.org>]

Eric Hanson wrote:

>Jonathan Borden (jonathan@openhealth.org) wrote:
>  
>
>>Well RDF isn't human readable and it does describe resources, and 
>>splinter specs such as RDFS and OWL allow you to specify vocabularies 
>>in ways that actual software can process. Of course it's probably more 
>>complicated that what you want, but so is the English language... and 
>>just like the English language it is being used ... actually if we use 
>>this analogy, RDF is more like ... say Belgian, but nonetheless it does 
>>have a population :-)
>>    
>>
>
>Sounds good, using OWL might be the way to go.  So...what's the
>ontology of a resource that supports XML data?  That one will
>take some figuring.
>  
>
I don't have a particular ontology offhand but considering RDDL nature 
and purpose:

1) A rddl:purpose is equivalent to (or possibly a subset of) an 
owl:ObjectProperty
2) rddl:nature is an owl:Class to which the referenced resource is an 
instance of.

In RDF (triple syntax):

rddl:purpose owl:subClassOf owl:ObjectProperty .
rddl:nature owl:subClassOf owl:Class .
rddl:resource owl:equivalentTo rdfs:Resource .
rddl:href rdfs:range rdfs:Resource .

and that's about it -- of course you might develop your own "ontology" 
to suit a particular need/project. Indeed you could develop typelib as 
an ontology in which case any properties could be used as rddl:purposes 
and any classes as rddl:natures.

Jonathan