============================== ``urn5s_as_properties--benja`` ============================== :Author: Benja Fallenstein :Last-Modified: $Date: 2003/04/25 08:40:11 $ :Revision: $Revision: 1.1 $ :Status: Current In the RDF/XML serialization of RDF, all properties are turned into XML tags by separating them into an XML namespace and a local part. For example, ``http://example.org/foo`` could become:: When properties cannot be split like this, RDF graphs using these properties cannot be serialized in RDF/XML. Unfortunately, this apparently includes urn-5s: The colon can't occur in an XML tag in a namespace, and a tag's name cannot start with a digit. Even if we decide not to use RDF/XML, it would still be *very* bad for interoperability if our graphs couldn't be converted to RDF/XML. And we do want user-created nodes to be usable as properties. Therefore, add an additional underscore before the index in urn-5s, like this:: urn:urn-5:cf7O9Un3XBIVdh3rYqH0us169zo-:_12 Then we can serialize these as properties:: The urn-5 registration allows for this. \- Benja