甲公司承担的某系统开发项目，在进入开发阶段后，出现了一系列质量问题。为此，项目经理召集项目团队，列出问题，并分析问题产生的原因。结果发现，绝大多数的问题都是由几个原因造成的，项目组有针对性地采取了一些措施。这种方法属于_____ 法。
- A.因果图
- B.控制图
- C.排列图
- D.矩阵图
正确答案及解析
正确答案
解析
排列图：也被称为帕累托图，是按照发生频率大小顺序绘制的直方图。从概念上说，帕累托图与帕累托法则一脉相承，该法则认为：相对来说数量较小的原因往往造成绝大多数的问题或者缺陷。此项法则往往称为二八原理，80%的问题是20%的原因所造成的。
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