The principal roles for implementing the Six Sigma methodology

One of the most important challenges for today’s companies is to give to their customers the best products with major possible quality, due to the high competence in the current industries. As we have seen, one of the most used and significant philosophies to achieve this is the Six Sigma methodology, which let organizations not only decrease their manufacturing errors but also to improve and increase the quality of what they sell. Obtaining this, all these companies can be more competitive and productive in the industries they are participating.

We have talked about the Six Sigma concept in other articles and its importance in today’s organizations, but there are different imperative elements and roles that must be understood for implementing this methodology in organizations. Knowing them and have clear their importance, will give us a better notion of the Six Sigma philosophy and their benefits. Moreover, knowing all these roles will let organizations that want to implement this, have the right persons for doing it.

The Six Sigma methodology

We can define briefly this thinking as all those actions and activities developed for a particular organization to improve their processes and reducing their defects and errors, producing better and higher quality products. In other words, this philosophy focuses on the removing of all those elements that make processes less effective and imperfect.

The Six Sigma methodology seeks for having 3,4 defects in one million of opportunities, that is almost a 99% of production efficiency. Reaching this goal, companies can have products and services almost perfect, giving to customers what they need and how they require.

Organizations can go from One Sigma to Six Sigma. In the One Sigma stage, there are companies with 690.000 defects per million of opportunities, the Two Sigma are those with 308.000 per million, Three Sigma 66.8000, Four Sigma 6.210, Five Sigma 230 and the best qualification, the Six Sigma with 3,4 errors per million of opportunities as we mentioned.

With this brief explanation about the Six Sigma methodology, then we can talk about the roles participating within this thinking and their importance for its implementation in any company from any industrial field.

The Six Sigma Roles

In the Six Sigma methodology, there are different roles for those people that are involved in the implementation of this technique. They are not just responsible for the execution of the Six Sigma project, but also for being the mentors and guides for all the workers involved in the implementation of this methodology.

Usually, when companies want to implement the Six Sigma thinking in their processes, it the must be established as a project. For this, then organizations have to define different roles so they can drive in the best way those people involved in the project and the other employees related to it. To achieve this, the Six Sigma methodology proposes some specific roles so they can help to reach the principal goals sought by this philosophy. Let’s see the most important and recognized ones.

The Six Sigma Leader

This is probably the most important role when a particular organization is implementing or wants to work under the Six Sigma methodology. The leader role is vital for those companies because it is the articulator of all the planned and designed strategies for developing what this method proposes.

The Six Sigma leader is not only responsible for guiding and directing every member in the implementation, but it is also the person in charge for establishing the main objectives within the project, both for the short term and the large term. In addition, it is the one who chooses the members that will work and guide the other employees in the construction of the planned activities in the project. At the other hand, it is in charge to communicate and divulge all the elements related to the status of the project.

Image courtesy of Pixabay at

The Master Black Belt

They are some of the most experts and high skilled workers for applying the Six Sigma methodology in companies. Sometimes they do not exist in these projects, but they are vital for guiding and teaching to other members and participants in the implementation of the Six Sigma thinking.

The Black Belt

These members are those who are involved with the most technical details and are persons dedicated 100% to the Six Sigma implementation. Usually, the Black Belts are those people who have a very high knowledge about the processes activities and their details. In other words, they are those workers who understand and know the most important things about the procedures and production activities carried out by the company.

The Green Belt

They are skilled workers who understand the most important details in the company’s processes, but they are involved partially in the construction of the Six Sigma project. Their participation is crucial because they are focused on specific activities for improving those procedures.

Related: Two important cases of companies working under the Six Sigma thinking by David Kiger

* Featured Image courtesy of Automotive Rhythms at


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