essary.</p>
    </dd>
  </dl>

  <p>The diagram below illustrates how these components fit together.</p>

  <p class="image"><img src="fcm_overview.png" alt="FCM system overview" /></p>

  <p>The following sections discuss these components in more detail.</p>

  <h2>Code Management System</h2>

  <p>The CM system is built using a number of open source tools, in particular
  Subversion and Trac.</p>

  <p>Subversion is a modern version control tool with a large and rapidly
  expanding user base. For a summar