 How can the notion of professional concern enrich professional didactic engineering? 
Professional didactic engineering is essentially based on didactic analyses of work activities in order to design or improve training devices, focusing on the problem of competencies in characteristic situation classes. This article proposes an enrichment of this approach by focusing on professional concerns, either in a pedagogical adjustment approach or to understand specific organizers of the activity. In this second perspective, this contribution submits a multi-agenda generic analysis model of professional concerns, with a view to professional didactics.