Six Sigma is an important methodology in quality management

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Six Sigma is an important methodology in quality management

Six Sigma is an important methodology in quality management

Basically, Six Sigma is one of the well-known management methodologies and widely used throughout the world. Generally, Six Sigma is used for the process of improvement and also an increase in a process, and to control quality sustainably.

Companies that are able to apply Six Sigma will well be seen from the quality of the products that are getting better. For this reason, this methodology is very useful and important for developing business. Well, on this occasion, let’s discuss deeper about Six Sigma and how to apply it.

Definition of Six Sigma

Six Sigma is one way that focuses on improving quality. Based on the origin of the origin, Sig Sigma comes from the word six which means 6 and sigma which means it is a unit of a standard deviation known as the symbol σ. Therefore Six Sigma is also often symbolized to 6σ.

This methodology is first used in a bell curve in statistical science, which one Sigma will symbolize a standard deviation originating from the mean or the average value. Therefore, if a process has six sigma consisting of three upper and lower sigma, then the potential level of failure will be low.

So, the higher a sigma value, it will be less likely to be defective in a process.

On the other hand, it was reported from the official American Society of Quality page, Six Sigma was a tool or a way carried out by the company’s management to develop capacity in the business development process. The aim is to improve performance and minimize potential errors.

Therefore, Six Sigma is claimed to be able to realize the quality of production in the company to be better, increase company profits, and even able to improve the spirit of employees.

Position in Six Sigma

The very strong six sigma feature will give birth to strong infrastructure too, and this is useful to ensure that this performance of improving activities has obtained various resources that are indeed needed. For this reason, there are several levels of position in this one management system. Various levels and position positions in the Six Sigma management system are:

1. Champion / Sponsor (Top Management)

In this case, Top Management or Peak Management has the responsibility to be able to coordinate the business roadmap in order to touch Six Sigma. They also play an important role in choosing projects, carrying out supervision, and also reducing various obstacles to the Six Sigma project.

2. Master black belt

Master Black Belt acts as a mentor in an organization. The aim is to bring organizations to become more successful and win Six Sigma competence as stipulated.

Please note that the Black Belt Master must be filled by those who have a high level of technical and organizational proficiency, because the Black Belt master will later train Black Belt. In addition, they must also know the whole thing that is known to be Black Belt in the organization and understands various mathematical theories which are the basis of statistical methods.

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3. Black Belt

Black Belt is a team leader who will have to apply the Six Sigma methodology in his project. He must also introduce the methodology and tools used to each team member and a wider organization.

4. Green Belt.

Green Belt will act in producing small department projects focused on using various strategies to achieve success and success.

5. Team Members.

They are members who participate in a project team. So, they will support the success of the project based on the responsibilities that have been carried out. In addition, they must also continue to use Six Sigma methods and resources as part of their daily work.

6. Yellow, White and other six sigma belts

There are several final positions besides Six Sigma which have been mentioned above. They are those who receive a number of forms of training, but are not expected to lead the team or complete a project. They only accept training and allow them to work as supporters of Six Sigma.

Six Sigma Method

There are at least two main methods that can be used to apply Six Sigma, First Dmaic or Define, Measure, Analyze, Improve, Control. Second, DMADV or DEFINE, Measure, Analyze, Design, Validate

1. Dmaic.

Dmaic is a data-driven method. The purpose of this is to develop existing products or services to increase customer or customer satisfaction. In general, DMAIC is used by manufacturing companies or company shipping or logistics services.

As the name implies, the DMAIC consists of 3 main processes, namely:

  • Define: Determine problems, goals, and processes.
  • Measure: Assessing the problem, yardstick performance, and evaluation of the measurement system.
  • Analyze: Analyze effectiveness and process efficiency to achieve a goal.
  • Improve: identify how to repair or develop a process.
  • Control: An attempt to measure the performance of implementation at various stages of the previous strategy.

2. Dmadv.

On the other hand, DMADV is a way that you can use to create or re-create a new product manufacturing process. This method is very suitable to be selected if a product process carried out by the company is currently unable to satisfy customers even though it is as much as possible.

Six Sigma Technique

There are eight Six Sigma techniques that use a mixture of basic statistics and data analysis to achieve the desired results.

1. Brainstorming.

Brainstorming is the first step done before using the equipment in Six Sigma. At this stage, you must make various ideas and creative ways in solving a problem.

2. Root Cause Analysis

Root Cause Analysis or Root Analysis Problems are a stage that must be resolved by using 5W techniques (Why, WHO, When, What, WHO) in order to be able to recognize and find the root of the existing problems.

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3. Voice consumers

This stage must be done by listening to criticism and suggestions from consumers, both internally and externally. That way, you can find out what things must be developed or repaired based on suggestions and criticisms from consumers.

4. 5r system

In this case, the 5R system in question is concise, neat, resik, care and also diligent. The five steps are carried out to be able to eliminate unnecessary things and also reduce potential barriers that can arise in the implementation process.

5. Kaizen.

Kaizen Engineering is a strategy that can be used to improve business continuously by monitoring, identifying, and conducting various developments on an ongoing basis. If there is little inefficiency, it must be immediately changed to make it better.

6. benchmarking.

Benchmarking is a process used to determine the measurement standards. In this case, you can compare your business with the same competitors or businesses to know what shortages and strengths are possessed by competitors.

7. Poka-yoke

Poka-yoke is a technique that can be done to avoid various potential errors and compilation of strategies. In it, every employee must be able to identify and remove various things that can cause inefficiency.

8. Value stream mapping

Value Stream Mapping is a technique that can be used to measure material flow and information in compiling a project in the future. The aim is to maximize the reduction in inefficiency.


Based on the full explanation above, we can conclude that Six Sigma is one way that focuses on improving quality.

There are several levels of position positions in Six Sigma, namely Champion / Sponsor (Top Management), Master Black Belt, Black Belt, Green Belt, Team Members, and Yellow, White and other Six Sigma Belts. In implementing Six Sigma, two methods can be selected, namely Dmaic and DMADV, each of which is intended according to the type of industry industry.

The technique to apply it is divided into eight, namely brainstorming, root cause analysis, consumer voice, 5R system, Kaizen, benchmarking, poka-yoke, and value stream mapping.

However, regardless of the advantages and disadvantages of Six Sigma, basically this method was created so that the company can get a lot of profit or profit, so the company can be growing and successful.

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