<topicref>The <topicref> element identifies a topic (such as a concept, task, or
reference) or other resource. A <topicref> can contain other
<topicref> elements, allowing you to express navigation or
table-of-contents hierarchies, as well as implying relationships between a containing
(parent) <topicref> and its children. You can set the collection type of
a parent <topicref> to determine how its children are related to each
other. You can also express relationships among <topicref> elements by
using group and table structures (such as <topicgroup> and
<reltable>). Relationships are expressed as links in the output; by
default, each participant in a relationship has links to the other participants in that
relationship.
Category: Basic map elements