o  This clause provides a  way  to  associate  text  with  a  record
      description, providing a tool for documenting the sources of data
      and for describing the field structure of a record.   DESCRIPTION
      text  can  also aid in establishing record definition conventions
      and standards.

   o  You can also include comments in a CDDL source file by using  the
      exclamation   point  (!)  as  a  comment  delimiter.   Using  the
      DESCRIPTION clause is preferable to including  comment  lines  in
      the  source  file  because DESCRIPTION text is stored directly in
      the CDD.  CDDL/COPY_LIST copies DESCRIPTION clauses from template
      records,  but  does  not copy comments preceded by an exclamation
      point.  Also, you can display record-level DESCRIPTION text  with
      DMU's   LIST/ITEM=DESCRIPTION   command.    DMU's  EXTRACT/RECORD
      command extracts record- and  field-level  DESCRIPTION  text  but
      does not extract comments preceded by an exclamation point.