reliability, avaibility, maintainability, safety (RAMS)

Reliability, Avaibility, Maintainability and Safety (RAMS) stand for reliability, availability, maintainability and safety.

Together, the aforementioned properties form the reliability, dependability, which reflects the trust in a system. While reliability is determined by Mean Time Between Failures( MTBF) and availability and maintainability by Mean Time To Repair( MTTR), safety is about detecting, eliminating and reducing hazards.