ABSTRACT
How can ergonomics take part in designing courses of work that support the health of individuals and performance of companies? This question, in fact, leads us to define what is meant by the term course. Two main views can be distinguished. The first is related to employment, and likens the course of work to a career path and a profession, to the succession of positions or professional duties of a worker. The second is an individual and biographical view, where working hours are inserted, more broadly, into the course of life. The first view emphasizes the social and collective aspects of the course of work; the second emphasizes its individual and subjective aspects. The present chapter proposes a third view, whose goal is to join the first two together, based on an examination of courses of work from the point of view of activity, which is subjected to a process of ageing, viewed as an increase in the time experienced.
