Fault的定义:可能导致系统或功能失效的异常条件(Abnormal condition that can cause an element or an item to fail.),可译为“故障”。
Error的定义:计算、观察或测量值或条件,与真实、规定或理论上正确的值或条件之间的差异(Discrepancy between a computed, observed or measured value or condition and the true, specified, or theoretically correct value or condition.),可译为“错误”。Error是能够导致系统出现Failure的系统内部状态。
Failure的定义:当一个系统不能执行所要求的功能时,即为Failure,可译为“失效”。(Termination of the ability of an element or an item to perform a function as required.)