rdf:nodeID and rdf:about in powder-dr examples

Hi,

In POWDER-S examples of powder-dr document, all classes that define
IRI-set/Descriptor-set are denoted by rdf:nodeID, while class
descriptions that add additional information to those sets are denoted
by rdf:about/rdf:resource. eg:

<owl:Class rdf:nodeID="iriset_1">
...
</owl:Class>
<owl:Class rdf:nodeID="descriptorset_1">
...
</owl:Class>
<owl:Class rdf:about="#iriset_1">
    <rdfs:subClassOf rdf:resource="#descriptorset_1"/>
</owl:Class>

This does not make any meaningful relationship between those sets. I
wonder, set definitions should be denoted by rdf:ID (not nodeID), or
additional descriptions should refer those sets with rdf:nodeID (not
rdf:about/rdf:resource). In case of reference across different files,
rdf:nodeID doesn't work.

Please make sure that rdf:nodeID is used for a blank node, while
rdf:about/rdf:resource is for a node with URI.

(and, I guess "#description_1" etc in Example 2-7 are typo of
"#descriptorset_1" ...)

best regards,

-- 
@prefix : <http://www.kanzaki.com/ns/sig#> . <> :from [:name
"KANZAKI Masahide"; :nick "masaka"; :email "mkanzaki@gmail.com"].

Received on Thursday, 3 July 2008 03:20:01 UTC