* Simon Grant
But when it comes to occurrences, out there in the world, one can
only claim, from one direction, that a particular resource is an
occurrence of a topic. That resource itself is not part of the TM,
and within the resource, one cannot expect to find any
representation of the fact that it is an occurrence of a particular
topic, according to a particular topic map.
It's true that in the model there is no "go from resource to topics
of which it is an occurrence" path that you can follow, but with a
query language this is dead easy to do. With tolog:
select $TOPIC from
resource($OCC, "http://whatever.com";),
occurrence($TOPIC, $OCC)?
will do what you want.
--
Lars Marius Garshol, Ontopian http://www.ontopia.net
+47 98 21 55 50 http://www.garshol.priv.no
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