Several DITA elements exist either for architectural reasons or for support of
specialized markup yet to be designed. Although there is little need to use these elements
unless you are directed to, some of them, such as <state>
, can be
used if your content makes use of these semantic distinctions. For example, a discussion of
signals on a gate of an integrated logic circuit might use the
<state>
element to represent either on or off conditions of that
gate.