This article provides a critical account of the joint development of the Evaluation Framework for training businesses by three partners: training businesses themselves, the Collectif des entreprises d'insertion and governmental representatives. After a description of the activities of training businesses, the article places the development of the Framework in an historical context. Next, it presents the actors involved, the stages of the framework's development, as well as its content. The final section identifies the technical, strategic and political issues raised through the initiative.