Six Sigma[六西格玛]

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开发、提供臻于完美的产品和服务。 Six Sigma[六西格玛]解析。

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什么是六西格玛? 释义

六西格玛是一项质量管理法,是企业改进生产流程、提高产品/服务质量的一项有效工具, 它能够降低企业流程差异、提升企业绩效,从而帮助企业提高产品质量、增加盈利、提升员工士气。 六西格玛法是由摩托罗拉公司的Mikel Harry开发的,并率先于摩托罗拉公司推广运用。 六西格玛法聚焦于企业的流程控制,严格将标准偏差值控制在六西格玛之内,即每一百万件产品中只有3.4件次品。 该方法还包括辨认顾客对于关键产品质量的认识和需求。 它通过减少流程偏差、提高生产性能、保持生产稳定性以及改进设计系统,来实现六西格玛目标。


六西格玛既是一个非常严格的质量目标,也是一项非常高效的质量管理手段,最终帮助企业生产和提供臻于完美的产品与服务。 六西格玛法的发明,得益于美国籍籍罗马利亚质量管理大师Joseph Juran所做出的大量统计性工作。 希腊字母“西格玛”(σ)在统计学上被用来测量一个流程与标准状态的偏离程度(标准偏差)。 西格玛数值越大,说明流程约接近于完美。 所以,当西格玛为1时, 则说明流程不是很好; 六西格玛,即西格玛值为6时,每百万单位只有3.4个次品,则说明流程接近完美。 六西格玛所反映的管理思想是,只要能够准确找出生产流程中的“次品”,就能够系统地把它们从流程中排除掉。 从而就能够实现“零次品”。

当你听说六西格“黑腰带”之类头衔的话,是不是感觉到有些日本味道? 是的,如果你是个刚入门的六西格玛培训生,你就会像日本的柔道新手一样得到一条绿腰带,简称“绿带”(Green Belt)。 一个六西格玛团队负责人,通常要有一条黑腰带,简称“黑带”(Black Belt)。 还有一些更为专业的人士,负责督导和管理黑带,他们被称之为“黑带大师”(Master Black Belt)。

 

Six Sigma[六西格玛] 6 Σ

六西格玛法的步骤。 流程

一般,六西格玛法包括以下5个步骤:

  1. 定义。 任何六西格玛项目的第一步都是找出和阐析质量问题,将问题控制在一个可以量度的有限范围内,从而使得最后能够在数月内实现既定的量度目标。 据此,形成六西格玛团队,对整个流程进行详细检查,提出改进建议,然后进行改正。 如果是个制造业项目,六西格玛项目经理会与项目所有者一道从定义次品成分入手,然后设立一系列降低次品发生的目标。
  2. 测量。 六西格玛团队收集流程资料,为下一步深入分析做准备。
  3. 分析。 一旦整个流程已为六西格玛团队所掌握,质量问题已为大量的实物证据所证明,六西格玛团队则开始对所掌握的数据材料进行分析。 六西格玛团队一般从分析这两个问题入手:找出生产人员为什么未能按照要求进行生产的原因;找出每一个流程阶段未能实施有效控制的原因。
  4. 改进。 建议,决策,改进提高。
  5. 控制。 作为最后一步,六西格玛团队设计控制机制, 帮助企业保持改进后的状态,并实现不断提高。

六西格玛论坛
  Six Sigma Black Belt Certification
I would like to know to what educational degree one can compare a Lean Six Sigma (L6S) Blackbelt certification? Thanks for your input....
     
 
  Disadvantages of Lean Six Sigma. Drawbacks
Hello! I am a student and I am trying to investigate why not every company is willing to implement Lean Six Sigma (LSS) in their environment. I found out that some of them say that it is:
1. Too expensive
2. Takes a lot of time to implement...
     
 
  Lean Management in Retail
Hi all, I'm a student from UEB-VNU, Vietnam. I've start my first research on applying lean management in retail in Vietnam. I am a bit confused and looking for academic materials in this field but those are not very helpful. Do you have any ideas for...
     
 
  Lean 6 Sigma in Laboratories
Hello, I want to know about Lean 6 Sigma in as I am laboratory supervisor. How can I use this approach to reach to high quality in my organization?...
     
 
  Best Practices Lean Six Sigma in Social Care
I have been using Lean Six Sigma (I'm a Black belt) in Adult Social Care in the UK and to my knowledge I am the only person in the UK using this in this business area. It is proving to be extremely useful.
The hardest thing is MSA ( Me...
     
 
  Quality Lessons in Dealing with Contractors
In the last 2 years I learned the following lessons working with Home Remodeling contractors.
Lesson One: Be careful who you hire. Top contractors find and keep top craftsmen while contractor...
     
 
  Applying Six Sigma to Landscape Architecture
How can Six Sigma be applied in Architecture practice? The deliverables being the project plan, the drawings and supervision. The accuracy of processes and thus the defects can not be precisely defined. Does it mean that Six Sigma is not applicable t...
     
 
  The Cost of Poor Quality: Tools for Effective Control & Reduction
Which Six Sigma tools are effective to determine and reduce the cost of poor quality (in the manufacturing sector)?
Since there are lot of quality tools used in industries, selecting correct, effective tools would lead to reduce time of problem...
     
 
  Six Sigma in Passengers Handling
How can Six Sigma be applied to passengers handling services in air transportation at an airport?...
     
 
  Six Sigma in Textile / Confection Industry
Any information or experiences about Six Sigma implementation in textile, confection industries? Thank you......
     
 
  Add Standardization to DMAIC Phases in Six Sigma (DMAICS)
In my experience I implemented the Six Sigma process following 6 instead of just 5 phases. The first five are the classical phases (DMAIC) for the analysis, solution implementation and solution effectiveness confirmation...
And in the last phas...
     
 
  Six Sigma Requirements
In order for Six Sigma to be successful in an organisation, the concept should be embraced from the grass roots to top management.
Involvement of all stakeholders should be emphasised, as data is generated by the grass roots and i...
     
 
  Six Sigma in Medical Transcription
How can Six Sigma be used in the field of medical transcription? What are all the gradients that need to be worked on in medical transcription with Six Sigma?
Editor: Medical transcription is the process of transcription, or converting voice-recor...
     
 
  Evaluating Six Sigma Project Leaders
How can I evaluate the talent of Six Sigma project leaders (presentation skill, answering, strategic thinking, and so on)?
What grading and evaluation of the factors do you recommend?...
     
 
  Evaluating Six Sigma Projects
How can I evaluate the quality of 6 Sigma projects (logical think, creative, right tools, effectiveness and so on).
What grading and evaluation of the factors you recommend?...
     
 
  Focus of Six Sigma: The 6 Rights
Six Sigma management can focus on following 6 Right (Rights):
- Right Support
- Right Project
- Right Road Map (DMAIC)
- Right People (training)
- Right Tools
- Right Result (high performance, high benefit, and hi...
     
 

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最佳实践 - 六西格玛 高级帐户
  The 5 x Why Method (The 5 Whys)
DESCRIPTION OF THE 5 WHY METHOD
The "5 x why" method has been developed by Toyota to perform an iterative Root Cause Analysis of production-related problems. The "5 x why" method is one of the avail...
     
 
  Is Six Sigma Enough? (To Improve the Quality Level of an Organization...)
In order to improve a process, or to get a new standard or higher quality level in an organization, is 6 Sigma a good approach?
My partners say that 6 Sigma is just for solving actual problems (d=define a problem), but it's not the best way to i...
     
 
  Hypothesis Testing in DMAIC Projects
Is hypothesis testing a must in DMAIC projects? Why (not)?...
     
 
  Tools for Finding Root Cause?
Which tool is preferable in Six Sigma methodology to detect or find the root cause from special cause variation and then solve accordingly? And how to differentiate if the tool is suitable to use for common cause variation or special cause variation?...
     
 
  Six Sigma for Marketing
Six Sigma for Marketing (SSFM) is newest Six Sigma variant drives growth. SSFM links interdependencies of strategic marketing, tactical & operational processes. It proactively drives growth (e.g. new offerings) in a balanced way, versus simply cut...
     
 
  Six Sigma in an R&D context
Is it possible to use Six Sigma to improve the quality of R&D processes? Or do R&D activities naturally defy systematic improvement efforts?...
     
 

Expert Tips (ENG) - Six Sigma Methodology | Six Sigma Model | Six Sigma Approach 高级帐户
 

Six Sigma Implementation Principles

In the article 'Six Sigma - the route to business excellence' (Management Services, Winter 2005), John Morgan argues that a successful Six Sigma im...
Usage (application)Implementing Six Sigma Succesfully
 
 
 

Six Sigma Approaches / Steps Compared

Commonly Six Sigma projects focus on re-designing processes and systems and improving performance of existing systems. While the latter is usually add...
Usage (application)DMAIC, DMADOV, DMAEV, DABTL
 
 
 

Good Six Sigma Project Management

In their article 'Six Sigma in Service Organizations' (International Journal of Quality & Reliability Management, Vol. 24, No. 3, 2007), Byung Rae Cho...
Usage (application) Six Sigma Project Characteristics
 
 
 

6 Management Responsibilities in 6 Sigma

The six imperative responsibilities top managers must take on in the early stages of a Six Sigma process:
1. Develop a strong rationale: l...
Usage (application)Six Sigma Implementation, Best Practices
 
 
 

Human Sigma

Although Six Sigma is an extremely powerful tool in manufacturing contexts, it falls short when it comes to the employee-customer encounter with its v...
Usage (application)Improving Employee-Customer Encounters
 
 
 

Six Sigma in Service Organizations

According to Jiju Antony ('Six Sigma for Service Processes', Business Process Management Journal, Vol. 12, No. 2, 2005), the adoption of a Six Sigm...
Usage (application)Benefits
 
 
 

Six Sigma Lessons Learned

Although six sigma programs typically start of well, they all too often fail to have a lasting impact as participants gradually lose motivation and...
Usage (application)Process Improvement of Six Sigma Projects
 
 
 

How Six Sigma Supports TQM

Forrest B.Green suggests in a paper called: Six-Sigma and the Revival of TQM that Total Quality Management (TQM) is undergoing a revival under a new n...
Usage (application)TQM, Six Sigma
 
 
 

3 Six Sigma Variants

Behind the success of 3 major companies who innovatively applied Six Sigma in Supply Chain Management ...
Usage (application)Differences in Six Sigma Approaches
 
 
 

Six Sigma in Service Organizations

Although the adoption of a Six Sigma business strategy in service organizations can lead to considerable benefits, following challenges and difficu...
Usage (application)Challenges and Difficulties
 
 
 

Hypothesis Testing in Lean Six Sigma Explained

How to do simple hypothesis testing in lean six sigma? How to simplify the basic roadmap in a hypothesis test?
Using the example below, we are te...
Usage (application)SS Hypothesis Testing
 
 
 

3 Critical Success Factors for Six Sigma Projects

3 Critical Success Factors of a Six Sigma project are:
1 Executive Engagement:
- Support consistently the organization with active com...
Usage (application)Getting results out of a 6 Sigma project
 
 
 

Measurement Systems Analysis (MSA)

WHAT IS MEASUREMENT SYSTEMS ANALYSIS (MSA)?
MSA is a type of experiment whereby you measure the same item or object repeatedly using different pe...
Usage (application)Testing Measurement Systems, Improving Measurement Systems, Assessing Measurement Systems
 
 
 

Generic Six Sigma Project Ideas

Here are some general 6 Sigma project ideas:
Reduce expenses at
Reduce scrap
Reduce downtimes or increase up times
Red...
Usage (application)Identifying LSS Projects
 
 
 

Design for Six Sigma

In addition to the two common key methodologies: DMAIC and DMADV of Six Sigma, there is another separate approach which is called Design for Six Sigma...
Usage (application)Supply Chain & Quality
 
 
 

DMAIC Approach is Sequential, But...

The DMAIC approach is designed to allow for flexibility and iterative work, if necessary. As more is learned through this 5-step process, assumptions ...
Usage (application)Six Sigma Implementation
 
 
 

CCR and CTQ

What Key Overall Requirements are there?
Requirements come from the customer (VoC) and the business (VoB), depending on the problem scenario. The...
Usage (application)Six Sigma Method
 
 
 

The DMAIC Process Step by Step Example

In order to better illustrate the DMAIC process, consider the case of a janitorial company that wants to boost the caliber of work done by its ...
Usage (application)Six Sigma Implementation, DMAIC Process
 
 
 

Lean Six Sigma Programs

Based on an analysis of Caterpillar and other companies that used lean Six Sigma programs to drive broad-based innovation and superior financial pe...
Usage (application)Driving Innovation
 
 
 

Radical Innovations

According to the article Using a Lean Six Sigma Approach to Drive Innovation by George Byrne, Dave Lubowe and Amy Blitz (Strategy & Leadership, Vol....
Usage (application)Assessing Your Level of Preparedness
 
 

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比较: Kaizen[改善]  |  Deming Cycle[戴明循环]  |  Scientific Management[科学管理]  |  8D Problem Solving[8D问题求解]  |  Value Chain[价值链]  |  Just-in-time[即时生产]  |  Value Stream Mapping[价值流程图]  |  Value Engineering[价值工程]  |  Hoshin Kanri[方针管理] - Policy Deployment[政策展开]


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