Six Sigma Tools

Six Sigma is a quality methodology focused on providing high - quality products or services generated by a company by lowering the deviation in the manufacturing process. Six Sigma members understand that whenever the manufacturing process retains reliability to consistently create significant outcomes, this will start to generate faulty products before someone gets involved and enhances the system. Decreasing variability, close monitoring and evaluation as things tend to deteriorate if it is not kept under control.In this blog post we are going to introduce the ebay six sigma tools that addresses the problem solving capabilities and reduces the waste ultimately.

What are six sigma tools?

Six Sigma tools are categorized as problem-solving techniques that use Six Sigma and further systems integration attempts. The Six Sigma expert provides qualitative methods to enhance the management. And although tools themself really aren't distinctive, individuals are implemented and incorporated as components of the system.

Top Six Sigma tools:

The important six sigma tools are mainly used in the improvement of projects. They are:

Value stream mapping:

Another tool used during the DMAIC Analyze phase and also in Lean Manufacturing makes it great for Lean Six Sigma is stream mapping.A value stream map demonstrates the flow of information in one of your procedures and has been built to enable you enhance and maximize your flow across your company.

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There are three things that stream mapping helps you to identify:

  • Value-enabled activities
  • Value Adding Activities
  • Non-value-added activities

The whole intent of this chart is to remove all of your non-value-added operations and to minimize waiting times among successive steps in your procedures because then your procedures are becoming more durable, accurate, and quick.

Cause and effect analysis:

A cause-and-effect analysis diagram is also termed a fishbone diagram as it represents a fish skeleton. It is indeed among the most renowned six sigma tools, because it enables you to think up numerous causes of the problem.The very first step in the plan is to examine the issue users would like to fix. You have had to note down who is working on the procedure and when and where the procedure is going to take place.

Next step in writing the issue in a box on the left side of the picture. Then draw a horizontal line to the other end of the paper. From there, you draw vertical lines that extend out of the spine. In these lines, you write down the main reasons behind the problem and think about any possible causes. You can further break down these causes into sub-causes.

Once you have completed the diagram with all feasible causes of the problem, you can evaluate your results. Further evaluation and analysis may be needed for the results.

5 whys:

Organizations almost always find that the very same situation arises over and over again. No matter how hard they deal with it, it starts to creep away in a future stage. Problems that won't go away are a symptom of a deeper problem that you need to solve. You can use the tool known as the 5 Whys to get to the root of chronic problems.

The 5 Whys emerged in the 1930s with the Japanese Industrial Revolution. The system is easy: when the trouble arises again, you have to go to the cause by asking "Why" five times. This method is most suitable when it is used to deal with moderately difficult issues. If you deal with more complex issues, you may get better results by using a cause and effect diagram.

The 5 whys make it feel like a very unenlightened method, but don't overestimate it. Its elegance is what helps make it so useful. In addition, this tool works well in conjunction with other Six Sigma tools.

Kanban system:

Kanban System is a supply chain control system that focuses on reducing costs by implementing a just-in-time inventory control system. It is also one of the most popular six sigma tools because of its ease of use and potential benefits. "Kanban" is Japanese for the billboard. The term was coined by Taichi Ohno, Toyota's industrial engineer. 

When you shop in a grocery store, you're not stocking up for months or years to come. Neither does the store hold items that it just doesn't expect to sell right now. Conversely, you tailor your shopping list to what you need right now, just as the store bases its supply of products on customer demand. Kanban mimics this arrangement by allowing the demand for the output of the firm to control its supply.

The Kanban strategy maintains inventory limits for all existing processes. This frees up extra resources and makes better use of them. The Kanban process operates on an elegant and simple idea: this only activates the production process when the demand requires it. Both brought more spotlight to the business operations itself but improved efficiency.

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Pareto chart

Pareto Chart is a diagrammatic display of the Pareto Principle: in either given situation, 20% of the feedback generates 80% of the output. The graph integrates a perpendicular bar graph with a line graph. The bar graph represents the statistics of the different components of the business process, purchased from the highest to the lowest. The line graph is the cumulative total of these metrics.

Pareto Plan is a chart that reconstructs on which step of the task most influences output. To generate such a chart, initially figure out the elements of the procedure and how to evaluate them. Once you've done that, you can put the data in the Pareto Chart. This will help you see how much influence each component has on the outcome. 

Process mapping:

Business process mapping is a way to represent the work processes and to effectively understand how things work. A standard map identifies the duties, commitments and guidelines involved with the process. It introduces this information in a proper way that recognizes the step in the process along with who is accountable, what inputs and outputs are, and other information relevant to the process.

Business process mapping is a benefit and incentives in problem-solving. It analyses the whole process, making it much easier to see what's wrong and get straight to the root cause. It also allows us to understand the roles of people in the process and ensure that anyone knows what to do. In addition, business process mapping is great for identifying potential risks that the process creates. 

There are several types of process maps. They are: Flowchart, value stream map, swimlane diagram, and SIPOC diagram.

  • Flowchart is the most common process map type. While this process map is less flexible, it can be easily drawn by hand or in software such as MS Office.
  • Flowcharts are often used to create workflow diagrams.
  • Swimlane diagram is similar to generic flowcharts, except that it is better structured in terms of who does what.
  • The value stream map is a deeper option to the flow chart. It's prevalent for lean six sigma operations, and you may find it harder to analyze at a glance.
  • SIPOC Diagram (Supplier Inputs Process Outputs Customer) is the most visually simplified map. It focuses on the essentials of the process and on the people involved.

Project charter:

The Project Charter is a document which defines the objective and design of the research. It tends to work both as a template for the business operations and as a lawful permission for the project. Project charter typically involves project background and scope, team and resource details, and timelines. It gives you all the basic information about the project and the main points are clarified.

The main advantage of a project charter is that it keeps the story less unpredictable. When a team jumps into the project, it's difficult to keep track of who is accountable for what, what timeframes the squad has to reach first, etc. If the business doesn't have a project managers structure, items will get more uglier.

Developing a project charter allows you to keep a real direction on just what your proposal is all about. It allows us to understand the plan of the system and the relationship between the people involved. In other words, project charter helps you get your company back in order when things get confusing.

RACI matrix:

Responsibility Assignment Matrix, also recognized as the RACI matrix, is a table describing the duties of each team member for each assignment of the business operations. RACI originally stood for Responsible, Accountable, Consulted and Informed – the key responsibilities most frequently used in the matrix.

Taking responsibility relates to anyone whose role is to carry out the task. Financially liable is the individual who assigns tasks to others and monitors their progress. There is always only one person to be accountable for each task. Experts on the subject, whose opinions guide those working on the task, are consulted. Finally, you will be informed of the people you notify once you have completed the task.

Typically, the RACI matrix has the duties on the left side of the table and the team members on the top row. At the interface of the two cells, the letter corresponds to the authentication method within the task. This simple system will help each team member to understand fully their role in the process. It also enables you to see discrepancies in the team setup and the roles.

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DMAIC is a five-phase improvement cycle; defines, measures, analyzes, improves and controls. It provides a structure for the improvement process and ensures that each change is based on careful analysis and useful data. It begins with Standard Work and repeats whenever a new opportunity for improvement is recognized.

A3 problem solving:

A3 is a structured problem-solving approach that takes its name from the size of the paper used before digital tools became available. The A3 report is the result of an improvement cycle such as DAMIC or PDSA.

Regression analysis:

Analysis of regression is a statistical process for estimating and understanding the relationship between variables.You would use this to define the mathematical relationship between the output variable (y) and any number of input variables (x1, x2, etc.)Graphing these inputs and outputs helps you visualize patterns or deviations from the desired patterns in your workflow.

Be careful when executing a regression analysis, however, if you want to avoid statistical illusions. Here are some things to remember when performing a regression analysis:

  • When two results are considered to be strongly linked, it is trying to imply that this shows that one variable affects the other, likely to result in a logical error known as correlation that does not imply causation.
  • Two or more variables in your regression model may be highly correlated, making it difficult to isolate their individual effects on the dependent variable called Multicollinearity.
  • If the error term in one time period is positively correlated with the error term in the previous time period, you will encounter the autocorrelation (positive first-order) problem.


Failure Modes and Effects Analysis (FMEA) helps companies aim to eliminate problem areas in the initial stages of any system or project. Created in the 1950s, FMEA is used to examine elements, components and modules to recognise failure modes and their causes and consequences. Lean Six Sigma practitioners use FMEA to improve the quality of their processes, services and products through detection.

Benefits of six sigma:

Here are some highlighted benefits of six sigma. They are:

  • Six sigma helps in increasing the organization productivity to greater extent.
  • It also helps in improving and enhancing the quality of the product.
  • It reduces the operational costs thereby eliminating the risk factors as well.
  • Provides collaboration coordination among the tema menerbes and helps in attaining higher customer satisfaction as well.


If you find six sigma is the perfect match for increasing your organization productivity and quality then the above mentioned six sigma tools will help you a  lot. You can use them to improve the different areas related to your production business and achieve greater success. However each and every tool has its  own importance, based on your requirement, select the best tools that fit your needs and company goals.

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Research Analyst
As a Senior Writer for HKR Trainings, Sai Manikanth has a great understanding of today’s data-driven environment, which includes key aspects such as Business Intelligence and data management. He manages the task of creating great content in the areas of Digital Marketing, Content Management, Project Management & Methodologies, Product Lifecycle Management Tools. Connect with him on LinkedIn and Twitter.