What is Six Sigma? - Everything you need to know

What is Six Sigma? - Everything you need to know

Six Sigma defines management tools and techniques, that where designed to help companies with improving their business delivery, by reducing errors. Therefore, main goal of Six Sigma is the elimination of any defects that may cause damage to business value. 

Keyword(s): Six Sigma

The Six Sigma main concept is pretty simple - deliver services while maintaining maximum customer satisfaction. Six Sigma can bring a lot of benefits for you and your organisation. Take a look at the foundations of Six Sigma and the key principles: 

Focus on the customer

Six Sigma focuses on bringing the most benefits possible for the customer. For it to work, it is neccesary to understand customer needs. That means that standards of quality should be established, given the demands of the customer and market. 

Measure the value stream and be aware of the problems

Decreasing the level of waste is essential and to achieve that you need to map the steps of every process and gather all the data to discover problems and finding best ways of solving them. It is also important to keep clear goals and define all the data and create a proper data colletion system, which can help with reducing errors and problems that will need to be solved during any kind of process while working on the project.

"Get rid of the junk"

Once you discover the problem, you need to take care of it. Removing problematic defects is essential for any process to work efficiently.

Equip your team with proper knowledge

Six Sigma processes have a big impact on the entire organisation, hence the team needs to work efficiently and use the principles and methodologies in a way that will allow to bring success. To keep your project safe from failing it is good to organise specialized training to equip your team with knowledge and skills needed to reduce risk and keep your project from failing. 

Be flexible

Business transformation is the essence of Six Sigma. When issues appear in processes it usually requires implementing some changes in work practices. Therefore, flexibility and responsiveness are two very important qualities that enable implementing a proper change in procedures. Therefore, the project team should have the ability to easily adapt to changes. 

The Six Sigma Methodologies

Six Sigma includes two main methodologies: DMAIC and DMADV. Read on and find out more about them!

DMAIC is a method used to improve the services that already exist. Main goal of it is increasing customer satisfaction. 

DMADV is a process used to redesign the service delivery or a particular process. DMADV is helpful when the existing processes no longer meet the customer needs and require optimization. 

The Six Sigma Process of the DMAIC method has five phases:


The Six Sigma process begins with an approach directed towards the customer: defining the problem from customer perspective, setting goals, like "What do I want to achieve?", "What resources will I use?", etc. and mapping the process.


The second phase is focused on the metrics: measuring your problem and defining all the data, evaluating the measurement system and defining if it will help you achieve desired outcome.


The third phase includes deep analyzes of the process: determining if your processes are effective and defining your goals in numbers, e.g. "Reduce something by 15%", "Increase something by 10%", etc.


This phase includes identifying how you can improve your processes, by using tools for proper optimization.


This is the final phase. It determines if the improvements are sustainable. In this phase you can establish the process capability and define if you are able to meet your goals. 

Six Sigma Techniques

Six Sigma methodology uses a couple of tools and techniques. Learn more about the most important ones: 


Brainstorming is essential for any method focused on problem solving, hence it is used even before starting of using any other tool. During the brainstorming the team exchange their ideas and create ways to properly approach a problem. 

"The 5 Whys"

In the 5 Whys technique, the team ask the important question: "Why?" They ask this question several times until they reach the point where they are lead to the core of the problem they are analysing. Of course, the number of questions can be different than 5, it depends on what the issue require. 

Listening to the the customer

Another important process, that focuces on the customer needs, by gathering the feedback. The goal of that technique is to give customer the best services possible in answer to their needs.

Kaizen (Continuous Improvement)

The Kaizen technique is a strategy that leads to desired improvement. It is focused on monitoring and executing all the needed improvements. 


Benchmarking is a technique that sets standards of measurement, by comparing the data with competitive businesses. It includes comparing similar services and products with the same ones of your competitors. 

Six Sigma Levels

There are several levels of Six Sigma, take a closer look at all of them:

White Belt

The simplest stage, where basically anyone can join. The key is knowing how to work with a team on projects that include problem-solving tasks. Candidates uderstand basic Six Sigma concepts. 

Yellow Belt

Candidates know how to review process improvements and have an understanding of various Six Sigma methodologies. 

Green level

This level has a little more requierments, e.g min. 3 years of full-time employment. Candidates are able to use the tools and methodologies for problem-solving tasks and have guidance for Black Belt projects (Data collection, Analysis). 

Black Level

This level also requires min. 3 years of full-time employment and proof of completion of a min. 2 Six Sigma projects. 

Master Black Belt

To reach this level, a candidate must have the Black Belt certification and have min. 5 years of full-time employment or proof of completion of min. 10 Six Sigma projects, a work portfolio and experience coaching Green Belts and Black Belts.

As you can see Six Sigma tools and techniques help with reducing defects and problems and increasing the quality of product or services you are providing. If you want to be a part of that progress, check out our website and courses

Advised Skills - Tech Trends News

Sharing knowledge is essential
for our team

Mastering ITIL Certification

Mastering ITIL Certification: Your Guide to IT Service Management Excellence

Welcome to the ultimate guide for achieving IT Service Management excellence through ITIL certification (1). Are you ready to enhance your career and become a sought-after IT professional with expert skills in handling complex service management processes? Look no further, as this is the definitive resource for mastering the widely recognized and highly sought-after ITIL certification.


NewsFebruary 23, 2024

AIOps Course and Certification

Top AIOps Foundation Course and Certification Programs for Professionals

Welcome to the world of AIOps, where technology and artificial intelligence come together to revolutionize the way businesses operate. As organizations worldwide embrace the power of AIOps to streamline their operations, the demand for professionals trained in this cutting-edge field continues to soar. Are you aspiring to build a successful career in AIOps? Look no further!


NewsFebruary 22, 2024

How to Ace the PMP Exam

How to Ace the PMP Exam: Step-by-Step Preparation Guide

Aspiring project managers, are you ready to take the leap and become a certified PMP? The PMP exam can be a daunting challenge, but with the right preparation, you can conquer it with ease. This comprehensive step-by-step guide will provide you with all the necessary tools and strategies to ace the PMP exam on your first try.


NewsFebruary 20, 2024

Become a SAFe Agilist

Becoming a SAFe Agilist: Steps to Achieve the SAFe Agilist Certification

Join the growing community of agile professionals and unlock new opportunities with the prestigious SAFe Agilist Certification. As organizations worldwide embrace the agile methodology, the demand for certified SAFe Agile leaders continues to skyrocket. But what exactly does it take to obtain a SAFe Agile certification? In this dynamic and ever-evolving field, the answer goes beyond just mastering the framework.


NewsFebruary 19, 2024

Importance of Agile Business Analyst Certification

The Importance of Agile Business Analyst Certification for Professional Growth

As the business world continues to rapidly evolve, the demand for agile business analysts (1) has never been higher. These professionals are essential in driving companies towards success by facilitating efficient and effective processes. However, with the constantly changing landscape, it is crucial for business analysts to keep their skills sharp and up-to-date.


NewsFebruary 16, 2024

Become a trainer

We are looking for Instructor who will be responsible for delivering classroom and online live courses. Positive and efficient working environments are key to our trainers' success.

Get started now!