The fate of individuals within occupational organizations has been studied in terms of the concept of career, defined by Hughes as "objectively … a series of statuses and clearly defined offices … typical sequences of position, achievement, responsibility, and even of adventure. … Subjectively, a career is the moving perspective in which the person sees his life as a whole and interprets the meaning of his various attributes, actions, and the things which happen to him." Hall's discussion of the stages of the medical career focuses more specifically on the career as a series of adjustments to the "network of institutions, formal organizations, and informal relationships" in which the profession is practiced.