- From: Jan Grant <Jan.Grant@bristol.ac.uk>
- Date: Mon, 27 Jan 2003 16:10:36 +0000 (GMT)
- To: www-rdf-comments@w3.org
The test case document lists three conditions sufficient for running the datatype-support test cases we currently have. [SEMANTICS] includes a closure rule (rdfD 4) which is not currently exercised by the test cases. An example test case for this rule would be that the empty graph [[ ]] RDFS+D(xsd:integer, xsd:decimal)-entails [[ xsd:integer rdfs:subClassOf xsd:decimal . ]] Suggest adding this as a datatype test case. If RDFCore adopts this suggestion, a consequence is that the following _fourth_ condition needs to be added to the test case document, in the section that describes datatype support required for test cases: * For two "supported" datatypes T and U, it must be possible to determine if the value space of T is a subset of the value space of U. [Note that "datatype support" for, say, xsd:integer and xsd:decimal, can simply be extended to cover this by inclusing the subClassOf triple as a known fact. However, without such support for this addition condition, an inference engine wouldn't be able to make the entailment.] The test cases are not required to be complete; however, it seems appropriate to add such a (trivial) test case, but not vital. jan -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/ Not as randy or clumsom as a blaster.
Received on Monday, 27 January 2003 11:12:43 UTC