In engineering, RAMS (reliability, availability, maintainability and safety) is used to characterize a product or system: Reliability – as ability to perform a specific function and may be given as design reliability or operational reliability. Availability, – as ability to keep a functioning state in the given environment. Maintainability – as ability to be timely and easily maintained (including servicing, inspection and check, repair and/or modification). Safety – as ability not to harm people, the environment, or any assets during a whole life cycle.
See also
Systems engineering
Dependability
Failure mode
Failure rate
Failure mode, effects, and criticality analysis (FMECA) Hazard analysis and critical control points High availability Risk assessment Reliability-centered maintenance Safety instrumented system Safety integrity level Reliability, availability and serviceability (RAS) Fault injection