Since PISA-tests have been carried out also the general public has become aware of the performance of education systems in international comparisons. My survey among Austrian and Finnish teachers indicated that teachers do not know very much about the preconditions and circumstances of their profession in other countries. This book deals with the up-to-date level of professionalism in education with a focus on vocational schools. For research and development in the field of professionalism a theoretical back-ground is required. This is provided by an introduction into the system theory,...