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单词 Six Sigma
释义

Six Sigma

英语例句库

The Six Sigma Black Belt should be able to read values from a cumulative frequency ogive.

6西格玛黑带应能从累计频次尖顶部读出数值。

57. The Six Sigma Black Belt should be able to read values from a cumulative frequency ogive.

六西格玛黑带应该能够从累计频次分布中读出数值。

中文百科

六标准差

六西格玛常用的标志
正态分布图，这是六西格玛模型的根本。希腊字母σ（西格玛）在横轴上标明了算术平均值,µ,和曲线的拐点之间的距离。这个距离越大，说明遇到的差值越大。在上面的绿色曲线中，µ = 0 and σ = 1.上面和下面的参数限定了（USL和LSL）离平均值的距离在6σ以内。
A 控制图
Las cinco etapas de DMAIC.

六标准差（英语：Six Sigma，6 sigma），又译为六西格玛，用于流程改善的工具与进程，是商业管理的战略之一，最初于1986年由摩托罗拉创立。后来由于通用电气第八任首席执行官杰克·韦尔奇（Jack Welch）的推广，六西格玛于1995年成为通用电气的核心管理思想，今天广泛应用于很多行业中。

六西格玛是通过确定、消除引起残疵的流程来提高产品品质，降低生产中和商业流程中的变化程度，利用了一套品质管理方法，包括统计方法，创建了组织内人员的一种特殊架构（“黑带”、“绿带”等等）。每个六西格玛项目都是根据具体的步骤，完成具体的财务目标实现的。

英语百科

Six Sigma 六标准差

The common Six Sigma symbol
The five steps of DMAIC
The five steps of DMADV
Graph of the normal distribution, which underlies the statistical assumptions of the Six Sigma model. The Greek letter σ (sigma) marks the distance on the horizontal axis between the mean, µ, and the curve's inflection point. The greater this distance, the greater is the spread of values encountered. For the green curve shown above, µ = 0 and σ = 1. The upper and lower specification limits (USL and LSL, respectively) are at a distance of 6σ from the mean. Because of the properties of the normal distribution, values lying that far away from the mean are extremely unlikely. Even if the mean were to move right or left by 1.5σ at some point in the future (1.5 sigma shift, coloured red and blue), there is still a good safety cushion. This is why Six Sigma aims to have processes where the mean is at least 6σ away from the nearest specification limit.

Six Sigma is a set of techniques and tools for process improvement. It was introduced by engineer Bill Smith while working at Motorola in 1986. Jack Welch made it central to his business strategy at General Electric in 1995. Today, it is used in many industrial sectors.
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更新时间：2025/6/22 10:06:41