1. Safety built into machine design

In parallel with technical progress and industrialization, the prevention of occupational hazards [1][2] developed considerably throughout the 20th century [3] . Standardization in this field is part of a program entitled "Hygiene and safety at work", which covers a wide field, since it concerns almost all the equipment used at work in the various professional branches of economic life. In fact, standardization work draws on a wide range of scientific and technical fields – engineering sciences, human and social sciences, life sciences. We will limit our discussion here to the technical field of automated machines and production systems.

The fundamental notions, general principles and...