Résumé : This doctoral research project delves into the multifaceted nature of heritage, with a specific focus on the convergence of participation and digital platforms. It addresses research inquiries about the specific management of heritage in post-revolutionary Tunisia, the theoretical framework surrounding participation actors and practices, interactions with participatory digital heritage platforms, and considerations for designing a participatory mobile platform based on the P@trimonia 2.0 research project. The aim is to provide an understanding of the intricate dynamics inherent in heritage management and digital engagement. The manuscript comprises several chapters exploring these inquiries, ranging from an examination of the contextual specifics in Tunis to the conceptualization of a participatory mobile platform. Each chapter presentscontributions based on case studies, literature reviews, and workshops, exploring diverse aspects of participatory practices in heritage and the role played by digital platforms. These contributions collectively enhance the comprehensive understanding of the intricate interplay among heritage, participatory practices, and digital platforms within and beyond the unique context of Tunis.