---
title: "故障率（failure rate）"
description: " 測定単位に発生したあるカテゴリの故障数の率。たとえば、単位時間あたりの故障数、トランザクション数あたりの故障数、コンピュータの運用回数あたりの故障数。 "
type: term
term_id: 207
language: 日本語
language_code: jp
canonical: "https://glossary.istqb.org/jp/term/failure-rate-1"
slug: "故障率-failure-rate"
url: "https://istqb-glossary.page/jp/%E6%95%85%E9%9A%9C%E7%8E%87-failure-rate/"
---

# 故障率（failure rate）

 測定単位に発生したあるカテゴリの故障数の率。たとえば、単位時間あたりの故障数、トランザクション数あたりの故障数、コンピュータの運用回数あたりの故障数。 

## Translations


- [English](https://istqb-glossary.page/failure-rate/) — failure rate
- [Deutsch](https://istqb-glossary.page/de/ausfallrate/) — Ausfallrate
- [Italiano](https://istqb-glossary.page/it/tasso-di-failure/) — tasso di failure
- [Português (Brasil)](https://istqb-glossary.page/br/taxa-de-falha/) — taxa de falha
- [Polski](https://istqb-glossary.page/pl/wspo%C5%82czynnik-awarii/) — współczynnik awarii
- [Português](https://istqb-glossary.page/pt/taxa-de-falhas/) — Taxa de falhas
- [Čeština](https://istqb-glossary.page/cz/mira-selhani/) — míra selhání
- [Dansk](https://istqb-glossary.page/dk/afvigelseshyppighed/) — afvigelseshyppighed
- [Svenska](https://istqb-glossary.page/se/felfrekvens/) — felfrekvens
- [Nederlands](https://istqb-glossary.page/nl/foutratio/) — foutratio
- [Magyar](https://istqb-glossary.page/hu/meghibasodas-arany/) — meghibásodás arány
- [Magyar](https://istqb-glossary.page/hu/meghibasodasi-arany/) — meghibásodási arány
- [Norsk](https://istqb-glossary.page/no/feilrate/) — feilrate
- [한국어](https://istqb-glossary.page/kr/%E1%84%8C%E1%85%A1%E1%86%BC%E1%84%8B%E1%85%A2%E1%84%8B%E1%85%B2%E1%86%AF-failure-rate/) — 장애율(failure rate)

Read this term online: https://istqb-glossary.page/jp/%E6%95%85%E9%9A%9C%E7%8E%87-failure-rate/

Markdown variant of the HTML page at https://istqb-glossary.page/jp/%E6%95%85%E9%9A%9C%E7%8E%87-failure-rate/ — part of the
ISTQB Glossary (https://istqb-glossary.page), a linkable, machine-readable
republication of the ISTQB glossary under fair use. No affiliation with ISTQB.