风险优先级数 (RPN) 是一种用于衡量风险的定量指标。 失效模式及影响分析 to prioritize risks. It is calculated as the product of three ranked factors: Severity (S), Occurrence (O), and Detection (D). The formula is [latex]RPN = S times O times D[/latex]. Each factor is typically rated on a scale from 1 to 10, allowing 团队 to focus on the highest-scoring risks first.




