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产品质量是若干个因素共同作用的结果,对多个质量特性及其一系列影响因素之间的关系进行考察,既是质量管理理论的发展同时也是质量管理实践的必然要求。本文结合具体事例和现场采集的数据,从应用的角度探讨了如何利用PLSPM原理分析多元质量特性与多个影响因素的因果关系问题。主要内容包括:多重多层次因果关系的缘由;PLSPM在多元质量特性及多个影响因素之间开展因果关系分析的可行性;通过实例说明多重因果关系包括直接和间接因果关系分析的实现过程。
The quality of a product is the result of a combination of several factors. Examining the relationship between multiple quality characteristics and a series of influencing factors is not only the development of the quality management theory but also the inevitable requirement of the quality management practice. In this paper, we discuss how to use the PLSPM principle to analyze the causal relationship between multivariate quality characteristics and multiple influencing factors based on the specific examples and the data collected in the field. The main contents include: the reason of multiple and multi-level causation; the feasibility of the PLSPM in the causal relationship analysis between multivariate quality characteristics and multiple influencing factors; and the realization of the process of multiple causal relationships including direct and indirect causal analysis through examples.