[Person-ontology] Use of systems concepts [was "Re: D7 - Which languages are better than OWL?"]

[James Nerney]

Here are some rules that may work:
- use unary concepts to name or describe static objects like mammals  
and elephants.
- use relational concepts when talking about sets of related entities.
- use constraint concepts when talking about dynamic relations.

On Jan 8, 2008, at 9:46 AM, Gian Piero Zarri wrote:

> "No W3C language provides a way to describe correctly and  
> completely simple 'situations' (sorry, John), facts, events etc.  
> that, like "Peter gave a book to Mary", are intrinsically n-ary".  
> Secondly if, with your "meta-statements" sentences, you refer to  
> proposals like that of making use of modal logics (sic!) to try to  
> transform artificially into "n-ary" something that has been created  
> as "binary", I don't agree at all. Make use of binary concepts to  
> describe static notions (as "mammals" and "elephants" and the  
> relationships among them) and use (in general) n-ary structures  
> when you must describe dynamic situations, events, actions or  
> whatever.

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