| Summary: | The following text aims to show the benefit for activity analysis obtained through a better knowledge of the concept of regulation, which is often poorly defined. To achieve this, it above all tries to suggest some avenues of study and some means for following these avenues. It begins by identifying some essential characteristics of this concept, and proposes a model for it. This concept will also be articulated with that of a rule. The second part shows how the proposed regulation model elucidates activity analysis at the same time that the latter enriches this model. It reveals the many regulation loops that can be used in task achievement and the important role that metaregulation can play in activity organization. The third part, more concrete, examines some types of uses of regulation in ergonomics-oriented studies and gives a short history of it. Themes around which such studies are organized are then addressed, in particular, the role of time frameworks, collective activities and training. The conclusion emphasizes the interest of a proper use of the concept of regulation and some limitations of its application.
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