Topics
The <topic> elements in the topic map can be related explicitly by means of <association> and <instanceOf> elements and implicitly by means of scopes and characteristic assignments, thus providing many powerful ways to create and use an undirected graph of rich and deeply structured content.
Sometimes page content can embed the characteristics of more than one topic. This behavior can be specified for certain association classes or if the page content should reflect results of a topic map query expressed in XPath, or (in the future) in Topic Map Query Language (TMQL). Both cases go beyond the scope of this chapter and are not considered here. Now let's consider two special types of topics that play very important roles in our framework. ...
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