Re: Why little usage of ObjectProperty

On 10/12/05, Richard H. McCullough <rhm@volcano.net> wrote:
>
> In the broader context of knowledge representation,
> properties can be classified as follows
>
> definition - genus/differentia or union/intersection (Restrictions)
> part - components of a single entity
> attribute - static properties of a single entity
> relation - property relating two or more entities
> action - dynamic properties of a single entity
> interaction - dynamic properties of two or more entities
> hierarchy - subClassOf, subPropertyOf
> ...
>
> Since OWL does not "know" most of these subclasses,

It might not natively "know" parts, actions and interactions, but all
three can to some extent be expressed in OWL. The others - most - are
known.

> you may well ask "why bother" to distinguish
> ObjectProperty from Property?

[[
We distinguish properties according to whether they relate individuals
to individuals (object properties) or individuals to datatypes
(datatype properties). Datatype properties may range over RDF literals
or simple types defined in accordance with XML Schema datatypes.
]]
http://www.w3.org/TR/2004/REC-owl-guide-20040210/#Datatypes1

Cheers,
Danny.

--

http://dannyayers.com