Topic outline

  • Defined as "the ability of a system to perform when and as required" (IEC), Dependability is also the science of ensuring this ability and acquiring justified confidence in it. Linked to risk management and often summarised under the term RAMS (Reliability, Availability, Maintainability, Safety), it has become essential in industrial fields (energy, transport, etc.) where failures can have major consequences for people, the environment, the economy and, more broadly, society. To provide scientific arguments for the design of new systems, we invite you to enter the world of operational safety: "know what is" (feedback) to "predict what will be" (methods and tools for analysis and calculation developed in this module) in order to "improve it as much as possible" (decision support to choose the best compromises).

  • Units

  • Author

    Jean-Pierre Signoret holds a master's degree in physics and has been actively retired since 2009. He began his career at the CEA (Commissariat à l'Energie Atomique) in nuclear safety, before continuing at ELF and TOTAL in the field of operational safety of safety and production systems. Responsible for both R&D and operational studies, he has been involved in the development of methods and tools for analysing and calculating operational safety for over 50 years now, and in the development of the GRIF software package, which has been implementing this expertise for over 40 years. A former Chairman of ESRA (European Safety and Reliability Association) and Vice-Chairman of ISdF (Institut de Sûreté de Fonctionnement), now IMdR (Institut de Maîtrise des Risques), he is the author or co-author of numerous publications and books, including "Reliability Assessment of Safety and Production Systems" (Springer), the basis of the first 4 Units of this module. Active for more than 20 years in standardisation, he chaired the AFNOR/UF56 committee (mirror of the IEC/TC56 committee on Dependability) and was project leader and member of several international ISO and IEC standardisation committees (functional safety, Dependability techniques, data collection, production availability, etc.). A member of TPA (TotalEnergies Professeurs Associés), he lectures at various universities around the world.