CWQM有三个方面，被称为朱兰三部曲：质量计划，质量控制和质量改进。
CWQM was divided into three, into what has become known as the Juran Trilogy: quality planning, quality control and quality improvement.
用阿拉伯和苏菲派（Sufi）传统音乐专家朱力安.贾拉尔.艾迪恩.韦斯（Julien Jalal Eddine Weiss）的话来说，其效果就像是“用非洲的邦哥小对鼓（亦称曼波鼓）来演奏莫扎特的奏鸣曲”那样。
The result, according to Julien Jalal Eddine Weiss, an expert on classical Arab and Sufi music, was like “using African bongos in a Mozart sonata”.
这就是有名的“朱兰三部曲”。
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