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DDR Simple API - null aspect name clarification

From: JOSE MANUEL CANTERA FONSECA <jmcf@tid.es>
Date: Tue, 15 Apr 2008 15:59:06 +0200
To: "public-ddwg-comments@w3.org" <public-ddwg-comments@w3.org>
Message-id: <93AA9E47B82F684A868C217766F489050397FB9F34@EXCLU2K7.hi.inet>
Regarding Section 3, Vocabularies, it is said

"Property and Aspect names must be unique in their namespace and must conform to the syntax<http://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-NCName> defined in "Namespaces in XML" [XML Namespaces]<http://www.w3.org/TR/2008/WD-DDR-Simple-API-20080404/#ref-Namespaces>. The value __NULL ('_','_','N','U','L','L') is reserved as the null Aspect name."

What is the null aspect name? Under which conditions it should be used?

The document should clarify
Received on Tuesday, 15 April 2008 13:59:17 UTC

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