Reliability, 可靠度

Reliability 可靠度﹐詳細說明如下：Reliability is defined as the probability that a system will perform it'sintended function under some specified operating conditions, for a specifiedperiod of time. (參考資料 2)
可靠度乃某系統在特定操作條件下﹑特定時間範圍內﹐完成設定功能之機率。

常用的單位有MTBF,MTTF等。

其他的敘述有：
Reliability is quality of time. (參考資料 2)
長時間之品質謂之可靠度

Reliability is quality changing over time. (參考資料 1)
可靠度乃品質隨時間之變化都強調時間﹑品質與可靠度之關係。

參考資料：Engineering Statistics Handbook, Juran's Quality Handbook (5th edition)