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Survivability





ENGINEERING

In Engineering , survivability is the quantified ability of a System , subsystem, equipment, process, or procedure to continue to function during and after a natural or man-made disturbance; e.g. nuclear Electromagnetic Pulse from the detonation of a Nuclear Weapon .

For a given application, survivability must be qualified by specifying the range of conditions over which the entity will survive, the minimum acceptable level or post-disturbance functionality, and the maximum acceptable Outage Duration . Federal Standard 1037C in support of MIL-STD-188


MILITARY SURVIVABILITY

In the military environment Survivability comprises three elements:
  • Susceptibility - the likelihood of being detected, identified, and hit

  • Vulnerability - the effects of being hit by a weapon

  • Recoverability - longer term post hit effects, damage control and firefighting, capabiltiy restoration or (in extremis) escape and evacuation.


Recoverability is sometime expressed as a subset of vulnerability.


NETWORK

"The capability of a system to fulfill its mission, in a timely manner, in the presence of Threats such as attacks or large-scale natural disasters. Survivability is a subset of Resilience ."The ResiliNets Research Initiative definition of survivability.Abdul Jabbar Mohammad, David Hutchison, and James P.G. Sterbenz
" Poster: Towards Quantifying Metrics for Resilient and Survivable Networks ", ''14th IEEE International Conference on Network Protocols (ICNP 2006)'', Santa Barbara, California, USA, November 2006


“The capability of a system to fulfill its mission, in a timely manner, in the presence of attacks, Failure s, or Accident s.”R. J. Ellison, D. A. Fisher, R. C. Linger, H. F. Lipson, T. Longstaff, N. R. Mead, '' Survivable Network Systems: An Emerging Discipline '', Carnegie-Mellon Software Engineering Institute Technical Report CMU/SEI-97-TR-013, 1997 revised 1999


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