RE: [TM4J-users] Is it a problem to merge topics and topic-types separately?

[Conal T. <co...@pa...>]

In your topic map file Topics.xtm there is a topic which is an instance of
the class "articles":

   <topic id="id10.1041_l0001s-2002">
      <instanceOf>
         <topicRef xlink:href="#articles" />
      </instanceOf>
      <!-- ...  -->
   </topic>

The uri "#articles" points to a topic in the same map (i.e. in Topics.xtm)
which has id = "articles". But there's no such topic in Topics.xtm, so TM4J
creates the topic like this: <topic id="articles"/>.

You need to refer to the "articles" topic in the ontological topic map
"topicTypes.xtm". e.g.

   <topic id="id10.1041_l0001s-2002">
      <instanceOf>
         <topicRef xlink:href="topicTypes.xtm#articles" />
      </instanceOf>
      <!-- ...  -->
   </topic>

NB merging topic maps from 2 files is not the same as concatenating the 2
files. e.g. if you merge these 2 topic map files, the 2 topics do NOT merge:

<!-- a.xtm -->
<topicMap id="a">
	<topic id="foo"/>
</topicMap>

<!-- b.xtm -->
<topicMap id="b">
	<topic id="foo"/>
</topicMap>

Hope that helps.

C