Where does this information go?

  <?xml version="1.0" encoding="UTF-8"?>
  <TEI xml:lang="en">
    <teiHeader>
      <!-- ... -->
      <encodingDesc>
        <classDecl>
          <taxonomy>
            <!-- classification systems documented here -->
          </taxonomy>
        </classDecl>
      </encodingDesc>
      <profileDesc>
        <particDesc>
          <!-- linguistic interaction participants personagraphy may be put here -->
        </particDesc>
        <textClass>
          <!-- document-level keywords applied here -->
        </textClass>
      </profileDesc>
      <!-- ... -->
    </teiHeader>
    <standOff>
      <!-- contextual information for which TEI does not provide -->
      <!-- a place in header, including ographies and interpretive -->
      <!-- keywords; perhaps also annotations -->                     
    </standOff>
    <text>
      <front><!-- transcribed title pages, table of contents, etc. --></front>
      <body><!-- body of the text --></body>
      <back><!-- transcribed indices, colophon, glossary, etc. --></back>
    </text>
  </TEI>