Re: Mistaken identity?

> Just because you use a particular URI as an rdf identifier doesn't
> automatically mean that the rdf resource is equal to the web page returned
> when you dereference the uri.

No, it is equal to the resource a representation of which is returned when you
dereference the URI.

  In fact, rdf's position about that notion is
> not really specified.

That URIs identify resources was already specified elsewhere.

> So how could you make a statement about the actual thing returned by
>  Make up a resource type, and assign the URL to it,
> something like this -
> {danny:a rdf:type danny:WebPage}
> {danny:a danny:URL ''}
> Get fancy and declare danny:URL to be inverse functional if you like.  
> I know that some people don't like this kind of approach, but it removes the
> ambiguity and clearly says what you mean.

Quite the opposite. The resource identified by <> has some
sort of relationship to the string ''. Knowledge of the
predicate <> is needed to work out what this is, that's
much more ambiguous.

Something like this is useful if you are talking about the representation
itself, but mostly representations are a means to an end.

Jon Hanna
"…it has been truly said that hackers have even more words for
equipment failures than Yiddish has for obnoxious people." - jargon.txt

Received on Tuesday, 22 June 2004 12:19:03 UTC