Expressing position in RDF

[Rob Seaman]

Rather, don't you really want to represent something like "object has  
a WCS" and "the object's WCS corresponds to an RA of 134.556"?  Not to  
be pedantic (no more so than usual, anyway), but science and  
technology are chock full of data structures that don't resolve to  
simple scalars.  I presume the ontological issue here is something  
about how to represent cardinality, rather than the more usual finite  
enumerated list of domain responses?

In any event, Matthew's question seems close to the essence of what  
needs to be answered to ever hope to win the hearts of scientists.   
For instance, SysML is a similar step in this direction compared to  
UML, permitting assertions of physical constraints in state machines,  
etc.

Rob
--

On Oct 10, 2008, at 3:39 PM, Matthew Graham wrote:

> Hi,
>
> A practical semantic astronomy question:
>
> I want to represent the relationship "object has a RA of 134.556" as  
> an RDF triple. Is there any existing ontology that would allow me to  
> do this? The best I've seen so far is to use the UCD as the predicate.
>
> 	Cheers,
>
> 	Matthew