W3C home > Mailing lists > Public > www-rdf-interest@w3.org > April 2001

RE: "If" and "else" in RDF

From: Danny Ayers <danny@panlanka.net>
Date: Sat, 28 Apr 2001 23:31:16 +0600
To: "James Tauber" <jtauber@jtauber.com>, "Seth Russell" <seth@robustai.net>, <info@jan-winkler.de>, <www-rdf-interest@w3.org>

<- What Jan was asking for didn't seem to me to need if/then (as my example
<- showed) if gender was modeled as a property from which you could
<- then look
<- up additional properties.

Not sure it was a good example, but I think everyone knew what was meant.

<- It wouldn't work if gender was modeled as subclass of Person and
<- you wanted
<- "address" to be a property of the Person instance. In this latter case,
<- you'd need inference to say:
<-     if (X, rdfs:class, Male) then (X, address, "Mr.")
<-     if (X, rdfs:class, Female) then (X, address, "Ms")

Wait though - you've just said it, without using any inference. Ok, it might
not be in the RDF model as it stands, but those look like reasonable
statements to me.
Received on Saturday, 28 April 2001 13:35:53 UTC

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