**2. Method**

The following disciplines were involved: public health, psychology, environmental health, occupational health, engineering, sociology, and medicine. The selection was made to get a wide variety of disciplines working in different areas but all with a link to risk and risk management. All selected participants have coauthored this chapter. They were recognized experts of risk‐related disciplines. They expressed their opinions and synthetized conclusion in a reiterative process. Each scientist was asked to present his/her own views on the given topics. The following questions were developed to get comparable responses from the participants: What is hazard and risk? How is hazard/risk assessed and which practice of hazard identification and risk assessment is used? and How is risk perception defined? The results were summarized, commented, and discussed by all authors. This method is appropriate as it allows and discusses different opinions. The aim was not to agree on one set of definitions, but critically reflect on the discipline‐related definitions of hazard, risk, and risk perception, and their assessments.
