[sc34wg3] Question on TNC / Montreal minutes

Jan Algermissen sc34wg3@isotopicmaps.org
Thu, 05 Sep 2002 12:48:12 +0200

Lars Marius Garshol wrote:
> * Jan Algermissen
> |
> | A note regarding RM-thinking here (as far as I understand it):
> |
> | At the RM level there will only be *one* node that represents the
> | concept of the "name that has "Mama Cass" as a 'string value' (the
> | name that has all the "Mama Cass" <baseNametring> elements as
> | subject indicators).  This node may then participate in
> | topic-basename assertions (those that trigger the TNC) and
> | topic-name assertions (those that don't trigger the TNC).
> |
> | So, at the RM level one can't say 'this *particular* "Mama Cass"
> | name', there is only one because it is a subject in it's own right.
> That's fair enough, but if two topic name nodes have different
> assertions connecting them to the identical string it need not follow
> that their respective topics must be merged.

Agreed, it is a processing model question. But it makes sense to me, why would
you NOT merge them ? (this means: why would you want to have two sidtinct subjects
for them ?)

> In any case, there are three decisions to take here:
>  - how to represent this in the XTM syntax (currently we have decided
>    on an attribute on <baseNameString>),
>  - how to represent it in the SAM (currently the now renamed topic
>    name item will have two properties [label] and [identifier]), and

Well, I need to take a look at the SAM document before...

>  - how to represent it in the Reference Model (no official decision
>    has been made, but the idea of separate assertion types has been
>    floated and appears obvious).

Again, to be clear and to prevent this discussion harming the RM, this
is a question of what semantics the SAM provides and of the processing
model on how to turn XTM markup into a topic map graph using these semantics.

Ok ?

> The most important of these is probably the syntax decision, since
> the syntax is what most people relate to.



> --
> Lars Marius Garshol, Ontopian         <URL: http://www.ontopia.net >
> ISO SC34/WG3, OASIS GeoLang TC        <URL: http://www.garshol.priv.no >
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Jan Algermissen
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