Marking up index terms in DocBook

  • index terms are spread through the whole document and marked-up by indexterm element

    <para>Wealth of a modern societies is built upon
    information<indexterm><primary>information</primary>
    </indexterm>.</para>
  • index terms can be multi-level and there are also other ways to mark them up

    <indexterm>
    <primary>information</primary>
    </indexterm>
    ...
    <indexterm>
    <primary>information</primary>
    <secondary>retrieval</secondary>
    </indexterm>
    ...
    <indexterm>
    <primary>information</primary>
    <secondary>dissemination</secondary>
    </indexterm>
    ...
    <indexterm>
    <primary>information</primary>
    <secondary>dissemination</secondary>
    <tertiary>oral</tertiary>
    </indexterm>

    sample output:

    information, 13
      dissemination, 17
        oral, 25
      retrieval, 15