6 Sigma, Lean, 5S: 3 Simple Methods for Improving Efficiency | TQMI (2024)

How 5S, Lean, and Six Sigma Complement Each Other

Business leaders across the world are constantly seeking ways to improve the quality of their products and processes, reduce waste, and improve employee engagement and customer satisfaction. To achieve these goals, worldwide organizations across business sectors are adopting concepts like 5S, Lean and Six Sigma. Although each of these concepts offers a unique set of benefits in isolation, when used in combination, they can deliver far more powerful results. Read on to learn more!

What is Lean?

Lean is a systematic methodology with the goal of accelerating the velocity and reducing the cost of any process by removing waste.

It helps organizations create the required value with fewer resources and less waste, while always working towards better quality. And because lean drives systematic and continuous learning, it allows organizations to be highly adaptive to the ever-changing business environment.

When adopted in an efficient manner, Lean can result in:

  • Better management of team or process complexity
  • Improved team morale, productivity, and efficiency
  • Predictable delivery of products and services, leading to better customer satisfaction
  • Reduced lead time and reduced waste

  • Here’s an example: A manufacturing company could double its production volume with the same facility by removing wastes like changeover time from one model to another, removing non-value-add activities like waiting time, lowering downtime of equipment by better autonomous and preventive maintenance, and reducing multiple inspections by introducing Poka-Yoke (mistake proofing) in critical steps of the process.

    What is Six Sigma?

    Six Sigma is an improvement methodology or management system that applies statistical methods to measure and reduce variation in processes and aids in achieving, sustaining, and maximizing business success.

    Offering tools to improve the efficiency of business processes, Six Sigma helps in enhancing performance and minimizing process variations – thus leading to a substantial reduction in defects and improvement in profits.

    When done right, Six Sigma can enable:

  • Reduced errors, thus better compliance
  • Better quality of work, thus better customer satisfaction
  • Optimized processes and reduced waste

  • Six Sigma helped one appliance company in India to save INR 20 crores (annualized savings) by reducing customer complaints, internal rejection, and rework and optimized use of input raw materials such as Paints and consumables.

    What is 5S?

    5S is a system that brings in efficiency, competitiveness, and a systematic approach to workplace organization. By ensuring everything is in order and by keeping the workplace clean, 5S makes it easier for people to do their jobs – without wasting time or risking injury.

    When implemented correctly, 5S can lead to:

  • Improved efficiency via the elimination of clutter
  • Reduced delays via better visibility and transparency
  • Enhanced employee morale via a better organization of tools and processes
  • Improved quality levels via standardized and streamlined ways of working
  • Enhanced safety via removal of stressful and dangerous hazards

  • For instance, on the shopfloor, implementing 5S processes can help in creating a clean, safe and comfortable work environment. Removing clutter from the workplace can lead to release and better use of the space. In recent news, the Government of India has realized INR 40 crores by disposing of old files and 8 lakhs square feet of space has been released for purposes other than storage.

    How they complement each other

    Although Lean and Six are great ways to improve, standardize processes, improve visibility, and reduce waste, when used together, they can deliver extraordinary results. As the integration of two powerful business improvement approaches, Lean Six Sigma together paves the way for faster cycles of production or delivery, fewer defects, and less rework.

    When combined with 5S, Lean Six Sigma are known to deliver far more powerful results:

  • Shifting from traditional processes to Lean, Six Sigma, and 5S processes can deliver positive results for companies through improved employee and customer satisfaction, better product quality, increased productivity, reduced waste, and increased revenue generation. 5S is the foundation on which improvement pillars of Lean and Six Sigma can be applied effectively
  • By reducing waste and increasing speed, the processes help in improving performance to match customer expectations.
  • Through the implementation of the right Lean tools and DMAIC with Lean tools, the processes help in eliminating variation and driving the best results.
  • Management engagement, dedicated champions, and black belts help in taking a Kaizen approach for improved visual process control, reduced cycle times, and better process safety.
  • These disciplined methodologies help in removing non-value adding steps, thus helping align production with demand, optimising inventory, and always having a vision for quality.
  • Regular cause and effect analysis and value stream mapping lead to a substantial reduction in waste, high quality of processes and products, and low cost of operations.
  • While Lean helps in making processes more efficient, Six Sigma helps in finding the root cause of problems, and 5S helps in removing items that are no longer needed – helping keep the business streamlined and organised.
  • While Lean and Six Sigma requires the participation of senior and middle management, 5S requires the participation of all including white-collared, frontline associates as well.
  • At the same time, through constant reduction of wastes such as defects, waiting time, overproduction, under-utilised talent, inventory, and extra-processing, the three concepts together help in improving workplace processes while ensuring a continuous flow of activities – without leakages or interruptions.
  • Together Lean, Six Sigma, and 5S can lead to not just individual process improvements but improvements across the entire value chain – via continuous defect and waste reduction.

  • As methodologies sponsored and directed by the leadership, Lean, Six Sigma, and 5S are increasingly being used by organisations across the world. Aligned with business objectives and tactics, they focus on a disciplined and systematic execution process and have a proven track record of delivering business results.

    But instead of choosing one over another, taking advantage of the strengths of all three strategies can act as a comprehensive and integrated solution to solving all types of problems related to process improvement and waste reduction.

    Executing all three together makes it possible to fully take advantage of their combined strengths and move towards a cleaner, leaner, and more efficient business – while having an enterprise that is constantly growing and improving.

    6 Sigma, Lean, 5S: 3 Simple Methods for Improving Efficiency | TQMI (2024)
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