In this book, we show the replacement of academic and vocational education, which is structured according to subject systems and oriented towards scientific knowledge, by vocational action knowledge. This work process knowledge is the basis for the acquisition of the design competence of vocational specialists, which is becoming increasingly important in the world of work. A modern knowledge concept based on vocational education is developed and documented. In the first part of the book the concept of vocational knowledge is developed, in the second part empirical results from COMET...