In today's dynamic environment, companies need to adapt their design processes faster than ever. Lack of employee involvement has been highlighted as a main issue during the adoption of new processes in R&D. Existing participatory methods, e.g. in ergonomics, contribute to ease organizational changes. However, their applicability on complex processes is limited. By combining methods from ergonomics and user experience with dynamic process models, we propose an approach that enables process stakeholders (e.g. engineers) to give feedback and to test the planned process in a range of scenarios.