Focusing on the critical aspect of functional safety, this book explores the necessity of safety-related systems to operate correctly under fault conditions to mitigate risks. It highlights the significance of the IEC 61508 standard, which requires quantitative proof of residual risk, and discusses various standards for different industries, including process, nuclear, and machinery. The text delves into the complexities of modern safety-critical systems, emphasizing the importance of reliability and the prevention of critical states despite potential faults, supported by numerous practical examples.
