Using a single <ditavalref>
element as a child of a map or map
branch indicates that the map or map branch must be conditionally processed using the rules
specified in the referenced DITAVAL document.
The following rules outline how the filtering conditions that are specified in DITAVAL document are applied:
<ditavalref>
element as a direct child of a map<ditavalref>
element within a map branch<ditavalref>
element.
<ditavalref>
element within a
<topicref>
reference to a local map<ditavalref>
element within a
<topicref>
reference to peer map