- From: Drew McDermott <drew.mcdermott@yale.edu>
- Date: Tue, 2 Mar 2004 15:49:09 -0500 (EST)
- To: www-rdf-logic@w3.org
> [Linus Yeung]
> i would like to ask is it an individual always look like below?
>
> <University>
> <hasDepartment ........../>
> <hasStudent................/>
> </University>
>
>
> will it look like below?
>
> <University>
> <hasDepartment........CS />
> <CS>
> <hasCourse................/>
> </CS>
> <hasStudent.................../>
> </University>
>
I found this confusing at first, too. The answer is that the notation
for describing individuals is a matter for RDF, not OWL. You can
write
<Description rdf:about="URL_of_individual">
<rdf:type rdf:resource="&myont;University"/>
</Description>
which can be abbreviated
<University rdf:about="URL_of_individual"/>
> Besides, i would also want to ask what is the role of the individual
> which is written inside the ontology?
An individual who appears in an ontology must play some distinct role
that most individuals don't. In a monotheistic ontology, #God might
get mentioned. In a polytheistic ontology, there might be no
individuals mentioned.
> why dont all individual to be written inside the html page?
I don't know what that means.
> Moreover, what is the function of enumeration?
To define a finite, smallish, class.
> if we create an individual of a classDescriptions, then is it necessary to put it into the enumeration? if it is, why?
Which enumeration?
--
-- Drew McDermott
Yale University CS Dept.
Received on Tuesday, 2 March 2004 15:49:10 UTC