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Prefix names cannot be empty according to the OWL/XML schema

From: Antoine Zimmermann <antoine.zimmermann@deri.org>
Date: Fri, 07 Aug 2009 10:53:10 +0100
Message-ID: <4A7BF986.7010809@deri.org>
To: 'W3C OWL Working Group' <public-owl-wg@w3.org>
Dear all,

According to the XML Schema of the OWL/XML syntax, the element Prefix 
must have a name which is a xsd:string of the form:

"(&PN_CHARS_BASE;)((&PN_CHARS;|\.)*(&PN_CHARS;  ))?"

where &PN_CHARS_BASE; is a character. So the Prefix must be nonempty. 
This makes many examples in the test cases invalid. This is obviously a 
bug in the Schema, not in the examples.

Antoine Zimmermann
Post-doctoral researcher at:
Digital Enterprise Research Institute
National University of Ireland, Galway
IDA Business Park
Lower Dangan
Galway, Ireland
Received on Friday, 7 August 2009 09:53:54 UTC

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