Re: Why Literals should be unique and why this is a serious issue

Andreas Andreakis wrote:

> As an example: How could this problem be solved in a relational shema ? 
> Simply by setting the property personName as a unique key. Obvious right ?
> So, in a relational Database this problem would have never arrised. So 
> why can´t be do the same in Ontologies ?

You can, using Inverse Functional Properties:

http://www.w3.org/TR/owl-ref/#InverseFunctionalProperty-def

To define a literl as being InverseFunctional you have to use OWL Full.
But the support is already there.

Cheers,

L.