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RAMS is an acronym for Reliability, Availability, Maintainability, and Safety. [1]

  • Reliability is a product's or system's ability to perform a specific function and may be given as design reliability or operational reliability.
  • Availability is the ability of a system to be kept in a functioning state.
  • Maintainability is determined by the ease with which the product or system can be repaired or maintained.
  • Safety is the requirement not to harm people, the environment, or any other assets during a system's life cycle.

See also[edit]


  1. ^ System safety, Norwegian University of Science and Technology