Metraipolis › archive › dc_9daef179bfce

Availability (system) — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Availability_(system)
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-10T12:25:08.058Z
SHA-256 of the archived text: 29675771c5ae7d160555b8ceb1d9a9f46800cf41ebb0821185abc62af2b376e9
Stable URL of this page: https://metraipolis.com/documento/dc_9daef179bfce

How to cite

Availability (system) — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Availability_(system) (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_9daef179bfce (Metraipolis archive dc_9daef179bfce, sha256 29675771c5ae7d160555b8ceb1d9a9f46800cf41ebb0821185abc62af2b376e9)

BibTeX

@misc{dc9daef179bfce,
  title = {Availability (system) — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Availability_(system)},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_9daef179bfce; sha256 29675771c5ae7d160555b8ceb1d9a9f46800cf41ebb0821185abc62af2b376e9},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Availability_(system). Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Availability is the probability that a system will work as required when required during the period of a mission. The mission could be the 18-hour span of an aircraft flight. The mission period could also be the 3 to 15-month span of a military deployment. Availability includes non-operational periods associated with reliability, maintenance, and logistics. This is measured in terms of nines. Five-9's (99.999%) means less than 5 minutes when the system is not operating correctly over the span of one year. Availability is only meaningful for supportable systems. As an example, availability of 99.9% means nothing after the only known source stops manufacturing a critical replacement part.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Availability (system)» — https://en.wikipedia.org/wiki/Availability_(system)
Wikidata Q4827427: «probability that a system will work as required when required during the period of a mission» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q4827427
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Availability_(system)?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1336055967, consultata il 2026-11-10T12:21:33.821Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 7b586fed692e455ad4158e2caedee39aefafab19c0856211d6cbe334a1e9a1ed