Six Sigma Certifications

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Six Sigma certifications are widely available. There are different requirements depending on the type of certification. And within these types there are differences in the lengths of time invested, deliverables, and exams.

Six-Sigma-Material.com is an informational site designed to assist project managers and prepare for certification exams. This site has partnered with reputable suppliers of various levels of certifications. This includes

  • White Belt
  • Yellow Belt
  • Green Belt
  • Black Belt 
  • Master Black Belt
  • Lean Manufacturing

This site does offer practice certification problems. Click here to learn more. There are over 100+ sample problems and numerous examples throughout this site that will help prepare for a GB/BB certification exam that are available to subscribers to this site.



Levels of Six Sigma Certification

Certifications are available at many levels and new levels of "belt" hierarchy have evolved over the years. The most common Six Sigma certifications in increasing order of difficulty are:

White Belt Certification

White Belts typically work on teams that support Six Sigma projects with a basic understanding of Six Sigma. This is usually the first step in the progression of a six sigma practitioner. 

They understand the importance of data integrity and may be responsible for collecting relevant data and ensuring it is organized and properly prepared for analysis. 

White Belts may support Green Belts, Black Belts, and Master Black Belts in finishing the tools, preparing data, presentations, and having an understanding in the principles makes them more effective in terms of the support they provide others. 

White Belts may not always be an official team member but may work in the background to support others. But these may be people that are close to the process so they offer a benefit of process knowledge and understanding of Six Sigma. 

Certification process will provide basic knowledge of the methodology and principles. The training and certification process are usually completed within one day and consist of 6-10 hours of training plus an exam. 

Because this is the first step in the belt hierarchy, these people may be viewed as future leaders in the company. They can also be Managers, Supervisors, or employees that have an responsibility to improve quality or process performance. 

Yellow Belt Certification

Typically, Yellow Belts participate as a team member on a Six Sigma project. They can perform similar roles as a White Belt review process improvements but have more training among principles and basic statistics.

Being a Yellow Belt (usually like a White and Green Belt) is normally not their full time job. But Yellow Belts are often called upon more often than White Belts to participate on team and may be on more than one project at a time. 

Certification process will provide basic knowledge of the methodology, principles, and basic statistics. The training and certification process are usually completed within two days and consist of 12-20 hours of training plus an exam. 

Because this is the second step in the belt hierarchy, these people may be viewed as future leaders in the company. They can also be Managers, Supervisors, or employees that have an responsibility to improve quality or process performance. 

This is the first level of "belts" that are given formal introduction into statistical analysis and may be required to learn the basic in a statistical software program. 

Green Belt Certification

Green Belts will require an understanding of the Lean principles and a basic understanding of statistical analysis. The goals of a Green Belt are shifting the performance to a desired target and reducing the variation of a process.

They usually support Black Belts and are not normally employed as full-time Green Belts. They may also mentor White Belts and Yellow Belts and lead teams with other Green Belts.

This is the first level of "belts" that could lead a project on their own (of course with a team). They usually won't have more than one project to lead at a time but they could be a participant on other teams while leading their own. 

Green Belt projects are usually smaller in scope than Black Belt projects. However, they are often expected to be completed within a shorter time span.

These certifications programs are less rigorous than Black Belt program. Certification programs typically vary from 80 – 160 hours of coursework plus an exam.

Black Belt Certification

Black Belts will require a thorough understanding of the Lean principles and statistical analysis. Their goal are to shift the performance to a desired target and reduce the variation of process. They usually work as full-time Black Belts and mentor Green Belts and other lower level Belts.

Black Belts often provide training and may be involved in creating new material for instructing new Black Belts and Green Belts. These certifications programs are more rigorous than Green Belt program but less than Master Black Belt programs.

Their projects tend to be of higher value and complexity than a Green Belt project. Certification programs typically very from 160 hrs – 360 hrs of coursework. May require proof of project completion, examination, and references.

Master Black Belt Certification

Master Black Belts (MBB) are subject matter experts of the Lean principles and have a solid understanding of statistical analysis and advanced statistical concepts.

They usually work as full-time Master Black Belts and devote a significant amount of time mentoring Black Belts, Green Belts, Yellow Belts, and White Belts. These certifications programs are the most rigorous and involve advanced statistical knowledge.

Their projects tend to focus on fundamental change and direction for a company. Master Black Belts also develop materials, certification programs, and conduct training and provide overall direction for the Six Sigma program.

Master Black Belts will have advanced statistical expertise and are normally leaders of the company. The certification process take several weeks, usually requires proven project execution (at least one project) and proven ability to lead change.

MBB's are not just stellar performers within the methodology, they are leaders, and knowledgeable in other areas such as finance, team building, motivational techniques, and presentation skills.


Share your preferred Six Sigma Certification Body

With a growing number of companies and institutions offering certifications and hybrids programs it can be challenging to filter out the most valuable programs for the investment. Please share your story, good and bad reviews are welcome, of your certification experience.

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Project Management Certification

Arguably, half of the job of the Six Sigma project manager has to do with effective Project Management skills. Change is constant and change is difficult...or someone else would have already done it. Creating a true fundamental shift in the performance of a process INVOLVES people and the culture they work within.

Staying on task, being organized, understanding critical path elements are not taught in most Six Sigma courses. Becoming an effective change agent can be very difficult for some highly technical people to learn. Knowledge builds confidence and this builds trust.

From the onset of a project, the moment you begin to lead your team they are developing a sense of trust and credibility in you and this can create strong synergy to complement your technical Six Sigma skills. Or it can work against all the hard work and knowledge you have on the Six Sigma principles, statistics, tools, etc.

The team does not care how much you know, until the know how much you care.

Click on the link below to a recommended certification site:

CPL PMP Certification




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