Goals and use

Central to the PRIMA approach is the determination of the most policy-relevant uncertainties that play a role in controversies surrounding complex issues. Subsequently, in the process of assessing the policy problem these uncertainties are explicitly 'coloured' according to various perspectives. Starting from these perspective-based interpretations, various legitimate and consistent narratives are developed to serve as a basis for perspective-bases model routes (example TARGETS, Rotmans and de Vries) or as a basis for selected model experiments (example with water management, van Asselt, Middelkoop et al. 2001). These model routes are then used for systematic experiments to assess robust strategies and potential risks. It is at least an alternative for ad hoc based scenario experiments with models