Conferences ; Language testing ; Needs assessment (language teaching) ; Evaluation criterion (language teaching) ; Lehrplan; Syllabus; Curriculum research ; Technical language (teaching of) ; Français fonctionnel; Teaching of technical language ; DaF; Deutsch als Zweitsprache; German as a second language; DaZ; German as a foreign language ; Lehrerausbildung; Teacher training; Lehrerfortbildung; In-service teacher training; Teacher education ; Writing instruction ; Media language ; Schwierigkeit (Zweitspracherwerb) ; Difficulty (second language acquisition) ; Complexity (second language acquisition) ; German