http://en.wikipedia.org/wiki/Docent德国情况
In Germany and in the German-speaking part of Switzerland, Dozent or Hochschuldozent denotes an academic appointment at a university or similar institution, at a mid level ranking of seniority.
The title of Privatdozent is used (with certain conditions) by those who have successfully completed a Habilitation, thereby denoting that its holder has the right to independently teach without being supervised by a professor. In this way, a Privatdozent may for instance hold an appointment as Hochschuldozent or Wissenschaftlicher Mitarbeiter, or even Professor.