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The article exposes and questions the mechanics of an action-research conducted from May 2017 to June 2018 at the Haute École Léonard de Vinci (Brussels, Belgium). It first of all returns to the theme of this research - and, to do so, to the specificity of the initial request made by the management of the institute requesting us - as well as to the societal context in which the training project it defends is set. Then, the article takes up the definitions of action-research, put into perspective with the process implemented and the results obtained. Finally, the conclusion returns to our appropriation of the action-research method and highlights its fruitfulness for the development of new courses in non-university higher education.