From: Peter F. Patel-Schneider (pfps@research.bell-labs.com)
Date: 01/30/01
One other quick comment. From: Jeff Heflin <heflin@cs.umd.edu> Subject: Suggested changes to concrete datatypes proposal Date: Mon, 29 Jan 2001 17:26:31 -0500 > 3) we still restrict what can be said about the concrete domain. For > example, you can't have a DataType as range of rdf:type (so users can't > specify new instances of a data type), as range of rdfs:domain (so no > property can have a data type as its domain), or as the domain and range > of rdfs:subClassOf (so no hierarchical relationships can be specified). Unfortunately, rdfs:Class is the universal class, as rdfs:Literal is an instance of rdfs:Class. Making rdfs:Class be only for abstract classes would require a change to RDFS. peter PS: Note that even the current proposal would require some sort of change along this line.
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