Figure 1. Related links in Serna.

Related links are characterized by the following:
Target location
Local related links can link to local topics.
External topics
DITA documents
Non-DITA documents
Documents on the web
Attributes
The href attribute provides the location of the target.
The format attribute identifies the format of the target: dita, html, pdf or ditamap.
The scope attribute identifies the closeness of the relationship between the current document and the target: local, peer or external.
Operations with related links