ABSTRACT
According to the model of Technical Rationality-the view of professional knowledge which has most powerfully shaped both our thinking about the professions and the institutional relations of research, education, and practice-professional ac tivity consists in instrumental problem solving made rigorous by the application of scientific theory and technique. Although all occupations are concerned, on this view, with the instru mental adjustment of means to ends, only the professions prac
tice rigorously technical problem solving based on specialized scientific knowledge.
