Re: @itemid and URL properties in schema.org

On Sun, 06 Nov 2011 15:13:03 +0100
Peter Mika <pmika@yahoo-inc.com> wrote:

> In OWL, the only way to express this constraint is to use a
> datatype-property: using an object property would allow any resource
> (including bnodes) as value.

Just use an object property, and accept the fact that OWL isn't
capable of expressing every possible constraint.

<http://tobyinkster.co.uk/#i> foaf:homepage [] . # deal with it! ;-)

Setting a property's rdfs:range to owl:NamedIndividual is at least an
*indication* that you intend a property not to be used with bnode
values. Whatsmore, it will allow DL tools to whine about it.

-- 
Toby A Inkster
<mailto:mail@tobyinkster.co.uk>
<http://tobyinkster.co.uk>

Received on Wednesday, 9 November 2011 13:28:45 UTC