The Regional Agency for Grand Est Tourism and the Grand Est Region have launched an ambitious approach to tourism mobility and group tourism. This approach, which is based on the design thinking methodology, makes it possible to involve a large number of stakeholders in the tourism sector and collectively achieve: - A framing of the issues and the realization of a precise inventory - The identification of strengths, weaknesses, opportunities and threats - The definition of strategic orientations - The emergence of ideas of services to be deployed solving problems identified as priorities - The support of the development of these solutions by stages of prototyping and testing - The promotion of prototypes and their implementation (either by the project leader or by one of these partners).