[Taxonomic research approaches in psychosomatic medicine and psychotherapy]

In a personal view the scientific achievements of A.-E. Meyer in the model and research concept of taxonomy in psychosomatic medicine and psychotherapy research are described and honored. There are given an overview and examples for the different fields the taxonomic approach is realized in Germany especially in asthma bronchiale and outcome psychotherapy research (time dynamic taxonomy). Finally there is an introduction in one approach of qualitative taxonomic research (Verstehende Typenbildung) applied in psychoanalytic follow-up research.