Abstract

The precautionary principle may offer an appropriate framework for conducting in‐depth participatory technology assessment (PTA)‐type evaluations. It also holds considerable promise for responsible research and innovation (RRI). The precautionary principle is made up of several different elements and principles. This chapter considers these components, noting from the outset that they relate essentially to scientific evaluation. Probabilities are not particularly helpful in the context of the precautionary principle due to the levels of uncertainty with regard to knowledge of phenomena. In this context, various forms of scenarios, narratives and unjustified inferences are particularly relevant. The chapter also considers more precise ways of identifying decision pathways in uncertain situations, where there is a risk of causing serious and/or irreversible damage, to use the terms given in various definitions of the precautionary principle. This decision can be made using: a utility‐based criterion, right‐based criteria, technology‐based criteria, and hybrid criteria.