W3C home > Mailing lists > Public > public-rdf-in-xhtml-tf@w3.org > March 2007

plain and datatyped literals - DL happy with 1 property for both?

From: Dan Brickley <danbri@danbri.org>
Date: Mon, 19 Mar 2007 13:27:03 +0000
Message-ID: <45FE8FA7.8080802@danbri.org>
To: public-owl-dev@w3.org
Cc: public-rdf-in-xhtml-tf@w3.org

Hi OWL experts

Quick Q: is OWL DL (or OWL 1.1 proposal for that matter) happy with the 
use of a single property, sometimes taking plain RDF literals, other 
times taking a datatyped literal.

This spins off of the RDFa syntax design discussion, around topic of 
which idiom to make the default: one that makes markup into 
rdf:XMLLiteral or one that generates a plain form of rdfs:Literal 
instead. The former having an associated datatype URI, the latter 
instead carrying an optional language tag.

Historically, for example, foaf:name has almost always been used with 
plain literals. I'm trying to understand the +/- of encouraging folk to 
use XMLLiteral within foaf:name and other literal-valued properties 
(versus using alternate properties with similar meaning, but designed 
for markup instead of strings).

It occured to me that OWL DL might be unhappy with such an idiom. Am I 
being over-cautious?


Received on Monday, 19 March 2007 13:28:43 UTC

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