Example: DITA map with a simple relationship table

This example illustrates how to interpret a basic three-column relationship table used to maintain links between concept, task, and reference material.

The following example contains the markup for a simple relationship table:

<map>
<!-- ... -->
<reltable>
  <relheader>
    <relcolspec type="concept"/>
    <relcolspec type="task"/>
    <relcolspec type="reference"/>
  </relheader>
  <relrow>
    <relcell>
      <topicref href="A.dita"/>
    </relcell>
    <relcell>
      <topicref href="B.dita"/>
    </relcell>
    <relcell>
      <topicref href="C1.dita"/>
      <topicref href="C2.dita"/>
    </relcell>
  </relrow>
</reltable>
</map>

A DITA-aware tool might represent the relationship table graphically:

type="concept"	type="task"	type="reference"
A	B	C1 C2

When the output is generated, the topics contain the following linkage:

A: Links to B, C1, and C2
B: Links to A, C1, and C2
C1, C2: Links to A and B