Availability

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Definitions

European Definitions

ENTSO-E
Availability is a measure of time during which a generating unit, transmission line, ancillary service or another facility is capable of providing service, whether or not it actually is in service. [1]


United States

NIST
Ensuring timely and reliable access to and use of information. [2]


The property of being accessible and useable upon demand by an authorized entity. [2]


Standard Definition

ISO/IEC 27000:2014

Property of being accessible and usable upon demand by an authorized entity[3].


See also

Notes

  1. ↑ ENTSO-E Glossary of Terms
  2. ↑ 2.0 2.1 NISTIR 7298 rev 2: Glossary of Key Information Security Terms, May 2013
  3. ↑ ISO/IEC 27000:2014, Information technology -- Security techniques -- Information security management systems -- Overview and vocabulary
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