What is Kaizen, how it works and top 12 benefits

You probably know what Kaizen means if you work in the manufacturing industry. If not, you’ve probably heard the word thrown around with terms such as lean, six sigma, or continuous improvement.  In this blog post, we will discuss what is Kaizen, how it works and the benefits of continuous improvement in practice.

What is kaizen

The Kaizen approach is a continuous process improvement practice that identifies and course-correct processes to increase efficiency. It has been used in the manufacturing industry for decades, responsible for Japan’s competitive success in the manufacturing sector. It’s recently become popular worldwide as companies seek new ways to cut costs and drive measurable improvements.

The key idea behind Kaizen is that everything can be improved. It focuses on eliminating waste, and it doesn’t require much investment. The Kaizen method requires everyone in an organization to be proactively involved in improving the company. It is a bottom-up approach to problem-solving that empowers employees to take on new challenges.

What is Kaizen?

PDCA Cycle

The Japanese word kaizen means ‘good change’ or ‘change for the better.’ It refers to the practice of making small, incremental changes to achieve long-term success. It follows the principles of the PDCA (Plan – Do – Check – Act) cycle from identification of the problem to implementing the solutions. PDCA cycle is continuous, meaning that once an issue has been resolved, the cycle starts all over again to find ways to improve the process even more.

The kaizen philosophy revolves around the following four ideals: 

  1. Continuous improvement 
  2. Small incremental changes 
  3. Involvement of all employees 
  4. Focus on quality

How was Kaizen developed?

Kaizen originated in the Japanese manufacturing sector in the pre-World War II era. It was part of the Toyota production system by the 1950s. Toyota had implemented kaizen back then in its manufacturing plants, and the results were impressive. These little quality improvements allowed Toyota to become a global success. Gradually, the Kaizen principles have spread around the world. 

Why perform continuous improvement?

The reasons for investing time and effort in continuous improvement are numerous. An organization’s high-level benefits include: 

  • Cost cutting – When companies reduce waste, they can often reduce costs. 
  • Improving customer service – A better customer experience can lead to better customer retention and customer satisfaction, leading to more revenue.
  • Retaining employees – Engagement and meaningful work reduce turnover, which makes companies more efficient.
  • Driving innovation – Companies can drive new products and services by creating a culture of innovation.

What are the requirements for Continuous business Improvement?

Improving any process starts with accepting that your product or service isn’t performing well enough. Then clear targets should be set to improve the process. After that, there are a few more requirements for continuous improvement efforts to be successful. 

Having an organizational structure that supports improvement efforts and problem-solving is crucial. Also, training the staff in basic problem-solving techniques and methods is a must. 

Defining and analyzing the problem should be based on extensive data, and problem-solving efforts should treat the root cause, not just the symptoms. 

After a solution is implemented, the process must be monitored continuously to get consistent results. Once this is achieved, proper control systems must be implemented to maintain the new solution as a standard. Any resistance to change should be overcome with the support of proper change management practices. 

How does Kaizen work?

Kaizen believes in improving things, irrespective of the status quo. As mentioned earlier, it is an iterative process that involves identifying the issue, developing a solution, implementing the solution, checking the results, and making necessary adjustments. This is a PDCA cycle-based systematic approach to problem-solving and change implementation. 

The cycle is composed of seven stages for constant improvement and is also helpful in providing a systematic approach.

  1. Identify the problem
  2. Analyze the process
  3. Develop a solution
  4. Implement the solution
  5. Study the outcome
  6. Standardize the process
  7. Identify new opportunities for improvement 

Key focus areas of kaizen?

An effective continuous improvement process can be guided by focusing on a few areas. 

  • Focus on the process, as well as the outcome – 

Many businesses focus too much on the final result of a process — their product, for instance. If you place too much emphasis on the end result, you may make short-sighted decisions and misdirect your efforts. Instead of focusing on the outcome, you can stay focused on the process.

  • Examine the work, not the people – 

 Feelings of blame and judgment can result from focusing only on the people. Instead, examining the work can help you identify areas where improvements can be made without judgment. This idea relies on the belief that problems are not caused by people but rather by the process itself. 

  • Question assumptions, be critical 

In order to identify areas for improvement, you must first question the status quo. Then, you can use critical thinking to identify areas where you can improve without requiring significant changes to the process. For example, it can help you determine why the process is structured a certain way, why certain tools and practices are used, etc.

  • Identify root causes, not just the symptoms

Identifying the root causes of problems is necessary to improve a process. It can help you focus your efforts on the areas that will provide the greatest benefit. Avoid the temptation to address only the symptoms and move on to the next.

  • Focus on implementation and immediate results – 

Suppose your incremental and small improvements don’t realize any short-term benefits. Then it’d be harder to continue and motivate everyone involved. By focusing on low-hanging fruits, you can ensure that your continuous improvement efforts deliver results and get all the support needed to achieve longer-term outcomes.

Benefits of Kaizen in business

Many business models have used Kaizen to achieve sustainable growth. Optimizing processes, avoiding waste, and improving workflow can increase the company’s productivity. Implementing Kaizen won’t be a quick fix but can yield long-term results. Here’s how Kaizen can boost workplace performance.

Better cost control

Kaizen is an excellent tool for controlling and reducing costs. In contrast to other cost-cutting efforts, Kaizen does not erode employee morale or negatively affect quality performance. The Kaizen process isn’t a one-time deal. The Kaizen way of thinking aims to eliminate everything that does not add quality to the product or service. The best part is that there’s no upfront investment. 

Reduces waste

The Kaizen mindset can be a tool to reduce waste in any process. The reduction of waste leads to lower costs because companies are able to remove things that do not add value to their products or services. As a result, profits can be improved, and revenues can be increased.

Enhances quality

You can identify opportunities for continuous improvement by looking at the current state of the business. It may initially seem annoying to discover small mistakes, minor oversights, glitches, and snags. But by simply addressing them early on, you can focus on improving quality and preventing future quality-control catastrophes.

Eliminates information silos

Department managers not sharing information is a common frustration in business. Both financial and morale costs can be incurred due to these breakups. In contrast, all Kaizen efforts allow teams to communicate better. Encouraging people to share thoughts, it makes it a routine part of their work day. Consequently, departments are more closely coordinated.

Promotes Grassroots thinking

The Kaizen process is more than just a management activity. It’s carried out by all employees who work on the frontlines, regardless of their positions and responsibilities within an organization. As a result, employees are encouraged to take the initiative in their work and suggest ways to improve things. Participants understand that their input is valuable, and feedback is encouraged.

Establishes Continuous improvement culture

A Kaizen business typically has a highly engaging workforce. It improves business practices, product development, and culture as a result. Employees have the power to change and understand how their views matter. Contributions will make a big difference, giving them satisfaction. It filters down through every organizational structure, making it a happier working environment everyone wants to be part of.

Builds teamwork

Employees tend to collaborate more when corporate culture is improved, and silos are gone. Also, they tend to improve the company more effectively when they work together. With Kaizen, you can develop a consistently successful team-building initiative with significant positive outcomes. Cross-functional collaboration can make your workforce more efficient and competitive.

Boosts Workplace Productivity

The reduction of quality problems increases organizational output. In addition, with increased corporate, cultural, and employee involvement, people naturally tend to do more work, which leads to a higher level of productivity.

Promotes creativity

It’s common for companies to try to solve problems creatively. However, creativity lacks clear rules and instructions, so fostering it can be challenging. The Kaizen method encourages employees to think creatively daily as they strive to solve business problems and eliminate waste. As a result, people can get empowered to come up with their own ideas because they’re challenged to find new and creative ways to deal with unexpected problems.

Enhances employee morale

Ultimately, it is the worker who can make a difference in how things are done. Kaizen creates a work environment where everyone feels empowered to help and suggest improvements. It increases morale and allows everyone to take ownership of improvement efforts that contribute to the effective implementation of Kaizen.

Improves Employee retention

Kaizen cultures effectively improve employee performance and prevent turnover, saving employers money on the training and hiring of new employees. 

Increases customer satisfaction

A company can boost customer satisfaction and retention by improving its customer experience. For example, incremental improvements through Kaizen can fix small problems that can cause reorders and replacement costs. As a result, customers become happier because they don’t experience so many negative aspects, and the company gains a reputation. The result is increased sales volume, higher revenue and an improved bottom line for the company. 

Pitfalls of Kaizen

While Kaizen continuous improvement has all the benefits mentioned above, if the Kaizen philosophy is not properly introduced and implemented, there could be some drawbacks. 

A poorly implemented Kaizen process can actually make you less efficient and productive. Because it’s so focused on finding and correcting mistakes, it can make employees feel resentful. Manufacturing, for example, relies heavily on manual labour, which can be especially problematic.

The second problem with Kaizen continuous improvement initiatives is that they can be very time-consuming. While they can have a significant long-term impact on the business’s bottom line, identifying and correcting inefficiencies through small incremental improvements can take a considerable amount of time.  

Lastly, when the Kaizen process is poorly implemented, it can result in more problems, either due to poor execution or a lack of employee buy-in. When all employees are not involved in decision-making and the process, they can feel alienated and experience a lack of engagement, commitment, and motivation.


In this article, we discuss what Kaizen is as a philosophy and a process-based concept that is transforming organizations around the world. Kaizen is a method of continuously improving processes by identifying and correcting inefficiencies that can be found in every aspect of the work that we do in all business processes. 

The primary benefit of Kaizen is the creation of a culture of continuous improvement. By encouraging employees to find ways for improvement, Kaizen fosters a culture of innovation and creativity. Kaizen also promotes team unity and morale. It creates a sense of community and teamwork when everyone works together towards the same goal.

Kaizen aims to improve quality, eliminate waste and boost productivity. By implementing this philosophy, organizations are able to save money and provide their customers with a better product or service. Additionally, this can help you maintain a competitive advantage and a leading edge.

You should celebrate winning! However, you should also take action in order to resolve newly identified problems. The Kaizen cycle is designed to continuously bring innovation to the industry by constantly improving products and processes. 

Tan Weerasinghe
Tan Weerasinghehttp://www.analytixminds.com
Tan W. has over 15 years of experience in the North American manufacturing industry. With a background in industrial engineering and a Bachelor's degree in Production Engineering, she has a deep understanding of quality management and process improvement. A certified Six Sigma Black Belt (CSSC), she also holds ASQ Quality Engineer and APICS Certified Supply Chain Professional (CSCP) certifications.

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