Provide traversal rules among the link's participating resources.
| Element | Description | 
|---|---|
| title | 
None.
      <complexType name="arcType" >
  <sequence>
    <element name="title" type="xlink:titleType" minOccurs="0" maxOccurs="unbounded"></element>
  </sequence>
  <attributeGroup ref="xlink:arcGroup" />
</complexType>