Simple project hierarchy

A DITA project usually contains a DITA Map with multiple <topicref> elements that reference DITA Topics.

Sample project:

DITA Map with some topic references

The following DITA Map example shows a very simple map structure with a few topics.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
    <topicref href="topics/topic-01.dita"/>
    <topicref href="topics/topic-02.dita">
        <topicref href="topics/topic-02-01.dita"/>
    <topicref href="topics/topic-03.dita"/>
Note: It is possible to nest DITA Maps in DITA Maps using the <mapref> element.