Why is it necessary to validate models of pedagogical competency?

In recent years many different forms of competency models have been used in curricular design, quality assurance and education research. This trend has also been addressed and reinforced in higher education, particularly within the framework of the Bologna Reform (in terms of competency-based learning). Competency models now play a role in the education and professional advancement of university teachers. Thesemodels indicate which skills teachers need in different subjects in order to effectively prepare students for professional careers in science and other academic fields. Many different approaches and models have been generated offering systematic, competency-based descriptions of the professional teaching skills necessary for university-level educators. Suitable pedagogical competency models are needed for different purposes and functions. Some examples include models to (vgl. [1])