Relationship Table (reltable)

The map.ditamap references the reltable.ditamap, that contains the relationship table. Relationship tables can only be defined in maps, not in topics.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
<map>
  <title>Relationship Table Example</title>
  <topicref href="batsonar.dita" keys="batsonar"/>
  <topicref href="batcaring.dita" keys="batcaring"/>
  <topicref href="batfeeding.dita" keys="batfeeding"/>
  <topicref href="batguano.dita" keys="batguano"/>
  <topicref href="bathistory.dita" keys="bathistory"/>
  <!-- The reltable.ditamap only contains a relationship table -->
  <mapref href="reltable.ditamap"/>
</map>

The reltable.ditamap contains the relationship table. The keys are propagated from the map.ditamap.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
<map>
    <title>Relationship Table</title>
    <reltable>
        <relheader>
            <relcolspec type="concept"/>
            <relcolspec type="task"/>
            <relcolspec type="reference"/>
        </relheader>
        <relrow>
            <relcell>
                <topicref keyref="batsonar"/>
            </relcell>
            <relcell>
                <topicref keyref="batcaring"/>
                <topicref keyref="batfeeding"/>
            </relcell>
            <relcell>
                <topicref keyref="batguano"/>
                <topicref keyref="bathistory"/>
            </relcell>
        </relrow>
    </reltable>
</map>

In the output, the following links are rendered.

• batsonar links to batcaring, batfeeding, batguano, bathistory
• batcaring links to batsonar, batguano, bathistory
• batfeeding links to batsonar, batguano, bathistory
• batguano links to batsonar, batcaring, batfeeding
• bathistory links to batsonar, batcaring, batfeeding