This Part reviews different risk-analysis methods. Risk analysis is a planned activity involving an identification and evaluation of accident risks in the workplace. We will start in Chapter 21 by establishing some common principles of the different risk-analysis methods. We will then in Chapters 22 to 25 go through four different methods that primarily are used in the analysis of the risk of occupational accidents: energy analysis, job-safety analysis and comparison analysis. One chapter is dedicated to the risk assessment of machinery. Finally, we will in Chapter 26 review the CRIOP method, where the interaction between the operators and the technical system are analysed when the system is in a disturbed state. The aim is here to prevent major accidents.