safety-critical system - определение. Что такое safety-critical system
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Что (кто) такое safety-critical system - определение

SYSTEM WHOSE FAILURE OR MALFUNCTION MAY RESULT IN DEATH, SERIOUS INJURY OR OTHER SEVERE DAMAGE
Life-critical; Safety critical system; Safety critical; Life critical system; Life-critical system; Safety-critical; Safety-related system; Safety-involved; Fail-operational; Safety critical systems; Safety-involved systems; Safety-related systems; Safety-involved system

safety-critical system         
A computer, electronic or electromechanical system whose failure may cause injury or death to human beings. E.g. an aircraft or nuclear power station control system. Common tools used in the design of safety-critical systems are redundancy and formal methods. See also aeroplane rule.
Safety-critical system         
of safety-critical systems. From left to right, top to bottom: the glass cockpit of a C-141, a pacemaker, the Space Shuttle and the control room of a nuclear power plant.
Safety instrumented system         
ENGINEERED SET OF HARDWARE AND SOFTWARE CONTROLS ESPECIALLY USED ON CRITICAL PROCESS SYSTEMS
Safety Instrumentation System; Safety Instrumented System; Safety shutdown system; Critical control system; Protective instrumented system; Equipment protection system; Emergency shutdown system; Safety instrumented function; Safety Requirements Specification; Emergency Shutdown System
A safety instrumented system (SIS) consists of an engineered set of hardware and software controls which are especially used on critical process systems.

Википедия

Safety-critical system

A safety-critical system (SCS) or life-critical system is a system whose failure or malfunction may result in one (or more) of the following outcomes:

  • death or serious injury to people
  • loss or severe damage to equipment/property
  • environmental harm

A safety-related system (or sometimes safety-involved system) comprises everything (hardware, software, and human aspects) needed to perform one or more safety functions, in which failure would cause a significant increase in the safety risk for the people or environment involved. Safety-related systems are those that do not have full responsibility for controlling hazards such as loss of life, severe injury or severe environmental damage. The malfunction of a safety-involved system would only be that hazardous in conjunction with the failure of other systems or human error. Some safety organizations provide guidance on safety-related systems, for example the Health and Safety Executive (HSE) in the United Kingdom.

Risks of this sort are usually managed with the methods and tools of safety engineering. A safety-critical system is designed to lose less than one life per billion (109) hours of operation. Typical design methods include probabilistic risk assessment, a method that combines failure mode and effects analysis (FMEA) with fault tree analysis. Safety-critical systems are increasingly computer-based.