系统安全分析,是用来评价安全工作有效程度的一种方法,它为作出正确的安全决策提供依据(即包括工程、设计、教育、管理、监督、控制等方面的某种安全系统)。逻辑分析图则是系统安全分析的一种工具。它的应用,开始于60年代,起初用于宇航工业的故障或缺陷图分析,70年代用于评价因 System safety analysis is a method used to evaluate the effectiveness of safety work. It provides the basis for making correct safety decisions (ie, including some kind of safety system in engineering, design, education, management, supervision and control). Logic diagram is a tool for system security analysis. Its application began in the 1960s with initial analysis of faults or defects in the aerospace industry. In the 1970s,