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Focus on developing and delivering near-perfect products and services. Explanation of Six Sigma.


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What is Six Sigma? Description

Six Sigma is a quality management methodology that provides businesses with the tools to improve the capability of their business processes. This increase in performance and decrease in process variation lead to defect reduction and improvement in profits, employee morale and quality of product. It is a quality measure and improvement program that was pioneered by Mikel Harry and Motorola. It focuses on the control of a process until the point of six sigma (standard deviations) from a centerline, or 3.4 defects per million items. It includes identifying factors which are critical for the quality as determined by the customer. It reduces process variation and improvement capabilities, increases stability and designs systems to support the six sigma goal.

The Six Sigma model is a highly disciplined approach that can help companies to focus on developing and delivering near-perfect products and services. It is based on the statistical work of Joseph Juran, a Rumanian-born US pioneer of quality management. The word "Sigma" is a Greek sign used for a statistical term that measures how far a given process deviates from perfection (standards deviation). If the sigma number is higher, you are closer to perfection. One sigma is not very good; six sigma is defined as only 3.4 defects per million. The central idea behind Six Sigma is that if you can measure how many "defects" you have in a process, you can systematically figure out how you can eliminate them. Thus you can almost come to "zero defects".

The Japanese origin of Six Sigma can still be seen by the system of "belts" which it uses. If you are new to Six Sigma and you go on a basic training, you get a green belt. Anyone who has the responsibility for leading a Six Sigma team is called a black belt. Finally there is a special elite group called Master Black Belts who supervise the Black Belts.


Six Sigma 6 Σ

Five Steps in Six Sigma. Process

Typically, a Six Sigma process has the following five stages:

  1. Definition. The first step in any Six Sigma project is to clarify the problem and narrow its scope in such a way that measurable goals can be achieved within a few months. Then a team is assembled to examine the process in detail, suggest improvements, and implement those recommendations. In the manufacturing world, project managers and their sponsors typically begin by defining what constitutes a defect and then establish a set of objectives designed to reduce the occurrence of such defects.
  2. Measurement. In the second step of a Six Sigma project, the team gathers data and prepares it for high-level analysis.
  3. Analysis. Once a process has been mapped and documented, and the quality of the hard supporting data has been verified, the Six Sigma team can begin the analysis. The team members usually start by identifying the ways in which people fail to act as needed, or by identifying the ways in which people fail to ensure effective control at each stage.
  4. Improvement. Recommend, decide and implement improvements.
  5. Control. In the final stage of a Six Sigma project, the team creates controls. These are enabling the company to sustain and extend the improvements.

Six Sigma Methodology | Six Sigma Model | Six Sigma Approach Forum
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Expert Tips - Six Sigma Methodology | Six Sigma Model | Six Sigma Approach Premium

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)

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


What Key Overall Requirements are there?
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Usage (application): Six Sigma Method

The DMAIC Process Step by Step Example

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Usage (application): Six Sigma Implementation, DMAIC Process

Lean Six Sigma Programs

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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

Resources - Six Sigma Methodology | Six Sigma Model | Six Sigma Approach Premium

Six Sigma Dictionary (250 terms)

Short explanation of 250 six sigma terms. By Luis Garcia Guzman....
Usage (application): 6 Sigma Terms

Great Truths about Six Sigma

Humorous introduction to Six Sigma with cartoons from various cartoonists....
Usage (application): Introducing SIx Sigma

Six Sigma Explanation

Definition of “Six Sigma”
Six Sigma Best Practice Implementation framework
Key Ingredients for a Successful Six Sigma Program
Usage (application): Business Process Improvement

Six Sigma Intro

Introduction presentation by lakhanpalv....
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Lean Assessment Tool

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Usage (application): Lean / Six Sigma Assessment

Business Process Management and Improvement: Six Sigma, BPR and (R)Evolutionary Change

Presentation about process management, particularly process modeling simulation and design. The presentation focuses on Six Sigma, BPR and Revolutiona...
Usage (application): Process Management, process Improvement, Business Process Reengineering, BPR, Six Sigma

Six Sigma Calculator

Determine the process performance in terms of Defects Per Million (DPM) or Parts Per Million (PPM)....
Usage (application): Calculating DPM and PPM

SS Origins and Destinations

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Usage (application): Six Sigma and Sustainability

Using the Whys Method

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Usage (application): Six Sigma, Toyoda, Toyota, Lean Production, Root Cause Analysis

Overview Six Sigma

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Usage (application): Six Sigma Method

Introduction to Project Quality Management

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Usage (application): Quality Management, Project Quality Planning, Project Quality Assurance, Project Quality Control

8 Wastes Assessment and 5S Analysis in Office Environments

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Usage (application): Lean, 5S , WASTE

Six Sigma Diagram

Download and edit this 12manage PowerPoint graphic for limited personal, educational and business use. Republishing in intranets, websites, books, ma...
Usage (application): Quality Assurance


Six Sigma Method


Six Sigma Process


Six Sigma Method


Six Sigma Process


Six Sigma Method


Six Sigma Process


Six Sigma Method


Six Sigma Process

Compare with: Kaizen  |  Deming Cycle  |  Scientific Management  |  8D Problem Solving  |  Value Chain  |  Just-in-time  |  Value Stream Mapping  |  Value Engineering  |  Hoshin Kanri - Policy Deployment

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