The service sector covers a great many and highly varied professional profiles (production, health, fi nance, culture, education, research ….) and represents more than 70% of all employment positions today and indeed of France’s GDP. The sector is characterised by societal and enterprise changes in the context of worldwide economic and commercial competition. Management here requires use of scientifically robust methods, based on continuous improvement factors, on human beings as central to the system, of risk anticipation and full control, where possible, of system-actor interfaces.