Glossary

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Term	Meaning
Value of information	Numerical difference between the expected benefit (utility) estimated with the implementation of the information and the expected benefit without implementation of the information.
Vulnerability	Intrinsic property of an entity (e.g. network, object, component or element, or the parts thereof) resulting in its susceptibility to a risk, which may be quantified by the ratio between the risks due to direct consequences of an event and the total value of the considered entity, determined bearing in mind all relevant hazards for a specified time frame
Vulnerable zones	Physically distinguishable part of an entity (e.g. network, object, component or element, or the parts thereof), for which change of its condition or other direct consequences of an hazardous event have the largest impact on its performance.1 1 One vulnerable zone may be related to several risks and failure modes.