Stefan Elbers

130 Chapter 5 Macdonald, 2017) . Consequently, an important next step in answering the question about whether co-design helps inform the development of health interventions will involve more examples of development projects. In these examples, co-design–based interventions are ideally subjected to experimental testing. Furthermore, we believe that future co-design projects in the health care domain should include detailed planning of activities and take lengthy medical ethical approval procedures into account (Hinchcliff et al., 2014). Conclusions To acquire a better understanding of how co-design may benefit the development of interventions in the health care domain, examples of good practice are necessary . In this article, we presented such an example. By critically reviewing the value and function of a co-design project with respect to idea generation, stakeholder involvement, and incorporation of stakeholder input into the development process, we demonstrated how co-design contributed to the transition from ideas, via concepts, to prototypes. Acknowledgments We thank the researchers Jan Pool, Manon Beetstra-Huszar, and Roos Tigchelaar for their continuous support with collecting and analyzing the data. We also thank Rianne Schaekens, Deloryan Hommers, and Yasmijn Baas for their assistance in the development phase during their graduation projects. Conflicts of Interest None declared. Abbreviations EBCD: experience-based co-design; HCP: health care provider; PAR: participatory action research.