Lean Six Sigma

11 minute read

Combining Kaizen, Lean and Six Sigma to Boost Performance 

Joseph Mapue

Joseph Mapue

Want to normalize excellence and high performance in your business? Stop dreaming and take action by adopting Kaizen, Lean, Six Sigma, or, better yet, a combination of the three.  

Long practiced by the world’s most successful organizations, this triad of related ways of working helps keep a business ahead of the pack by driving continuous improvement (Kaizen), process efficiency (Lean), and high quality (Six Sigma). Whether adopted as a stand-alone, a hybrid, or a comprehensive framework, Kaizen, Lean, and Six Sigma have been instrumental in the transformation and success of global brands like Toyota, 3M, and Starbucks. 


The most dangerous kinds of waste is the waste we do not recognize.

-Shigeo Shingo, Industrial Engineer behind the Toyota Production System


But you don’t need to be a large enterprise to benefit. Small to mid-sized businesses (SMBs) have also seen breakthrough upticks in performance and efficiencies due to integrating one or more of these proven methodologies into their operational culture.   

How? Kaizen helps achieve continuous, incremental improvements by encouraging all employees to actively contribute towards positive change. For SMBs, this can increase productivity and elevate morale without requiring huge investments. Lean aims to minimize waste and optimize processes. This can help SMBs to become more agile and cost-effective. Finally, Six Sigma helps reduce output defects and process variability. This allows SMBs to consistently provide high-quality products, raising customer satisfaction and retention.    

If you feel your organization sorely needs to cut costs and do better, this tried-and-tested trio should be the top item on your next agenda.

delivery trucks This article explores the principles of Kaizen, Lean, and Six Sigma, and their unique techniques and advantages. It will help you understand their differences and determine which specific method(s) can be adapted to meet your unique business needs. Let’s dive into each of these powerful and practical concepts.  

Kaizen, Lean, Six Sigma fundamentals 

Growth-focused organizations use Lean principles, Kaizen approaches, and Six Sigma metrics to boost productivity and facilitate transformation. As business evolves into an even more complex and competitive terrain, these methods have become a strategic component of forward-thinking companies that seek to lead and remain relevant in their industries. 

Kaizen, Lean, and Six Sigma provide a reliable and actionable framework for achieving and maintaining operational excellence. They offer templates and techniques for eliminating waste, streamlining workflows, and achieving breakthrough results.

Kaizen, Lean, Six Sigma: similarities and differences

Kaizen, Lean, and Six Sigma have many things in common. For one thing, they are all business management approaches aimed at improving organizational performance, particularly in the areas of efficiency, productivity, and quality. 

Furthermore, Kaizen and Lean both trace their linked origins to post-war Japan, where the need for manufacturing companies to find cost-effective ways of boosting production was imperative. 

Meanwhile, the highly structured approach of Lean blended well with the data-driven methodologies of Six Sigma, and it almost seems inevitable that the two would formally unite into one powerful framework for business transformation: Lean Six Sigma

All said, however, each of these approaches has its unique characteristics and focus. 

Similarities

Kaizen, Lean, and SIx Sigma all prioritize these five values:  

  1. Customer focus. 
  2. Employee involvement. 
  3. Waste reduction. 
  4. Process efficiency. 
  5. Continuous improvement. 

Differences

  • Kaizen focuses on small, incremental, and continuous improvements initiated by proactive employees. As a result, Kaizen fosters a culture of continuous improvement and strong employee engagement, where bottom-up transformation is the norm.
  • Lean focuses on reducing waste, streamlining processes, and improving workflows. As a result, Lean helps improve business efficiency and customer satisfaction. 
  • Six Sigma focuses on eliminating defects and reducing process variance using data-driven tools and a hierarchical accountability system. As a result, Six Sigma enhances the quality of processes and products, lends consistency and predictability to business operations, and generates verifiable financial returns. Because Six Sigma requires specialist skills and certifications, change often occurs in a top-to-bottom paradigm.    
Methodology      Focus      Benefits

Kaizen

  • Incremental changes
  • Continuous improvement
  • Continuous learning
  • Strong employee engagement

Lean

  • Waste reduction
  • Operational efficiency
  • Streamlining processes
  • Customer satisfaction

Six Sigma

  • Eliminating defects
  • High-quality output
  • Consistency and predictability
  • Higher financial return

Can you use Kaizen, Lean, and Six Sigma together?

The answer is a resounding YES. In fact, you should, if you aim to fully transform your company into a high-performing business with a culture of excellence. One way to do so is to adopt elements from all three that fit your unique situation. 

There are multiple areas where Kaizen, Lean, and Six Sigma intersect. In fact, many companies — unwittingly or not —  already use precepts and tools from all three approaches simultaneously. 

Each method has its unique strengths. But used together in the right manner, greater results can be achieved: 

  1. Kaizen helps develop proactive employees. 
  2. Lean offers a structured approach to optimizing processes. 
  3. Six Sigma provides data-driven tools and a system of accountability for truly understanding your pain points and applying the correct business remedies at just the right dosage.    

Done right, implementing a tight combination of the three methodologies can deliver:

  • A culture of continuous improvement, problem-solving, and innovation
  • Highly engaged, motivated, and satisfied employees
  • Smooth workflows, standardized processes, and higher productivity
  • Improved quality of your products and services
  • Greater customer satisfaction and loyalty
  • Improved efficiency, reduced costs, and better profit margins  

Case studies

Kaizen, Lean, and Six Sigma have been around for decades. Yet the demand for these methodologies remains on a steady climb (currently worth several billion dollars in market value) as more organizations seek to improve overall business performance. 

Surely, these companies expect results and are looking in the right place. Numerous organizations have already implemented one or more of the three ways of working, most with resounding success. Here are a few:

Starbucks. Over the years, Starbucks has implemented different elements of Kaizen, Lean, and Six Sigma in its operations. Adopting Kaizen methods, the company continues to streamline its operations, reduce waste, and improve efficiency in its stores. This allowed teams on the ground to maintain high standards of quality and service. Meanwhile, Lean principles were formally implemented around 2009, with Starbucks working with Lean consultants to redesign store layouts and optimize workflows. This led to reduced wait times and happier customers.

Ford Motor Company. Lean advocate Alan Mullaly became Ford CEO in 2006 when the storied US automaker was on the brink of bankruptcy. As chief executive, Mullaly leveraged the transformative principles of Lean and Kaizen to orchestrate one of history’s most riveting corporate turnarounds. Applying Lean’s zero-waste and flow mantras, the company significantly improved its production cycle and reduced mounting costs, successfully getting the business back into the green.

Virginia Mason Medical Center. Seattle-based Virginia Mason Medical Center applied Lean principles to improve operational efficiency and enhance patient care. Using value stream mapping, the company successfully identified and fixed bottlenecks, which reduced patient waiting times and improved the overall quality of its healthcare services. Lean implementation also led to greater cost savings and better resource utilization in the non-profit institution.  

Microsoft. One of the world’s most valuable companies, Microsoft, used Six Sigma to eradicate defects in its software systems, data centers, and IT infrastructure. The company established threshold metrics for acceptable baselines, performed root-cause analysis, identified problem areas, and gathered large volumes of server data and customer feedback. After prioritizing the identified issues, the company developed a solution roadmap that addresses all issues in a systematic manner. As a result, the company successfully reduced expected server downtimes, improved productivity, and made customers more satisfied with its services. 

Takeaway

The market for Kaizen, Lean, and Six Sigma resources continues to grow as organizations increasingly seek to improve productivity, reduce costs, and enhance the quality of their products and services.  

The global Lean Six Sigma market alone is expected to reach $2.5 billion by 2026. That’s because businesses are more than willing to invest in tried-and-tested tools that can bring about positive change in their operations and supercharge their revenue engines. Meanwhile, certified Lean Six Sigma black belt practitioners continue to enjoy very high job market demand, commanding an average salary of US$135,400 in the U.S.  

Want to learn more about the Lean Six Sigma methodology?

Check out this ebook that will guide you through the key concepts of LSS.

Organizations are looking for ways to improve performance. In some cases, technology and other resources might fit the bill. However, few realize that what they really need is a cultural shift.

When the practical philosophy of Kaizen, the structured approach of Lean, and the data-driven methods of Six Sigma find their way into your business, a culture of excellence and continuous improvement begins to form, and good things start happening.

People get more involved. Processes run more smoothly. Customers are happier. Profits get better. 


Certification and mastery

Knowing about Kaizen, Lean, and Six Sigma is the first step on the road to transforming your business. Mastering their principles and techniques is the next.   

You can start making a difference now. Learn more about Kaizen and make it a habit by living out its simple, practical tenets in your workflow. Then, take the shortcut to mastery that most professionals and organizations now prefer: Lean Six Sigma. 

Lean Six Sigma is the industry-recognized fusion of Lean principles and the powerful tools and techniques of Six Sigma. Our Lean Six Sigma Overview and Glossary will help speed up your understanding of the framework and the different concepts and tools you need to systematically improve key processes in your organization. 

To formalize your journey, we offer a library of Lean Six Sigma courses for every proficiency level (yellow, green, black). These courses are designed to help build the skills you need to acquire industry certification. An advanced Lean Six Sigma (Black Belt) course will help you lead breakthrough initiatives in your company.  

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Joseph Mapue

Joseph Mapue

Joseph creates content on business, innovation, and elearning. He clocks in more than a decade of professional editing and technical writing experience, having worked with companies such as GoSkills, SNL Financial, Accenture, and DXC Technology. When not watching silly videos, he does scale modeling, plays the guitar, and serves as daddy to two cats and a pair of hoomans. Find him on LinkedIn here.