Person who performs analysis and research to develop tools, methods and working environments better suited to the needs of human beings. To this end, she studies (observations, technical tests, interviews) the various facets of workers’ activity (physical and mental demands, movements and movements, discomfort felt during work, spatial arrangement of machines, tools and furniture. , etc.) in order to be able to recommend measures aimed at improving the comfort and performance of workers and at eliminating the causes of occupational diseases, injuries or physical disorders. She also designs manufactured products intended for domestic or professional use (tools, vehicles, computer equipment, furniture, sports accessories, etc.) while ensuring that the design of objects is adapted to the needs of users.