actises).</p>

  <h2 id="changes">Making Changes</h2>

  <p>This sub-section gives an overview of the recommended approach for
  preparing changes. Particular topics are discussed in more detail in later
  sub-sections where appropriate.</p>

  <p>The recommended process for making a change is as follows:</p>

  <ol>
    <li>Before work starts on any coding you should make sure that there is a
    Trac ticket open which explains the purpose of the change.

      <ul>
        <li>Make sure that you set the t