Article · Wikipedia archive · Last revised Jun 3, 2026

Reliability, availability, maintainability and safety

In engineering, reliability, availability, maintainability and safety (RAMS) is used to characterize a product or system:Reliability: Ability to perform a specific function and may be given as design reliability or operational reliability Availability: Ability to keep a functioning state in the given environment Maintainability: Ability to be timely and easily maintained Safety: Ability not to harm people, the environment, or any assets during a whole life cycle.

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Jun 3, 2026
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In engineering, reliability, availability, maintainability and safety (RAMS)12 is used to characterize a product or system:

  • Reliability: Ability to perform a specific function and may be given as design reliability or operational reliability
  • Availability: Ability to keep a functioning state in the given environment
  • Maintainability: Ability to be timely and easily maintained (including servicing, inspection and check, repair and/or modification)
  • Safety: Ability not to harm people, the environment, or any assets during a whole life cycle.
See also

See also

References

References

  1. "Reliability, Availability, and Maintainability - SEBoK". RAMBoK Project. Archived from the original on 2019-04-06. Retrieved 2019-05-26.
  2. System safety, Norwegian University of Science and Technology