[topicmapmail] Regarding Facets

[Kal Ahmed]

On Wed, 2003-03-12 at 21:21, Nikita Ogievetsky wrote:
[snip]
> Here is my $0.02 classification of different types of relationships
> between a topic and a text string.
> Here is the list of six, itemized by the role played by a text string:
> 
> 1) Name, covered by [baseName]
> 2) Address of a resource which is the subject of a topic, covered by
> [subjectIdentity/resourceRef]
> 3) Address of a resource whose meaning indicates the subject of a topic,
> covered by [subjectIdentity/subjectIndicatorRef]
> 4) Address of a resource in which this topic occurs, covered by
> [occurrence/resourceRef]
> 5) Inline resource in which this topic occurs, covered by
> [occurrence/resourceData]

I think this is the stumbling block. In XTM, an occurrence is defined
as:
"any information that is specified as being relevant to a given
subject." [http://www.topicmaps.org/xtm/1.0/#desc-occurrence]

It is not necessarily an information resource in which the subject
occurs! I can see the distinction that you are making, but I would think
that the class of the occurrence (as defined by the <instanceOf>
element) should provide your application with enough information to
determine the nature of the relationship between the occurrence resource
and the subject.

Cheers,

Kal