difference between lean and six sigma pdf

Difference between lean and six sigma pdf

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Lean Six Sigma Online

Similarities and differences between TQM, six sigma and lean (2006)

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Lean Six Sigma Online

Lean Six Sigma. Both sides have proponents and detractors who can cite various situations in which one system may produce better results than the other. Others argue that the best approach to creating the most efficient and effective business structure requires incorporating both Six Sigma and Lean principles. In order to view the debate in the proper context, however, you need to understand the differences and similarities between the two systems. While it was first designed for use in manufacturing , practitioners quickly discovered that Six Sigma could be useful and applicable throughout all aspects of a business — from customer support to management to service delivery. Today, Six Sigma plays a key role in the leadership of an organization, and its wide-scale implementation can help a company to achieve real and measurable results.

Six Sigma is no exception, with multiple branches, disciplines, and schools of thought having grown from the original concept over the years to fit new needs. In one case, two different schools of thought have merged into a single, cohesive methodology that can address multiple goals. This is Lean Six Sigma, a combination of management methods that builds on the principles of Six Sigma with a focus on efficiency. Both approaches aim to achieve the same thing: more effective processes that yield a bigger bottom line. The difference is seen in the way they go about reaching that goal. Six Sigma was developed with a very specific goal: reduce variation and defect rates in production processes through statistical analysis. Both methods have their distinct uses.

During the last decades, different quality management concepts, including total quality management TQM , six sigma and lean, have been applied by many different organisations. Although much important work has been documented regarding TQM, six sigma and lean, a number of questions remain concerning the applicability of these concepts in various organisations and contexts. Hence, the purpose of this paper is to describe the similarities and differences between the concepts, including an evaluation and criticism of each concept. While TQM, six sigma and lean have many similarities, especially concerning origin, methodologies, tools and effects, they differ in some areas, in particular concerning the main theory, approach and the main criticism. The lean concept is slightly different from TQM and six sigma. However, there is a lot to gain if organisations are able to combine these three concepts, as they are complementary.

Similarities and differences between TQM, six sigma and lean (2006)

Purpose — During the last decades, different quality management concepts, including total quality management TQM , six sigma and lean, have been applied by many different organisations. Although much important work has been documented regarding TQM, six sigma and lean, a number of questions remain concerning the applicability of these concepts in various organisations and contexts. Hence, the purpose of this paper is to describe the similarities and differences between the concepts, including an evaluation and criticism of each concept. Findings — While TQM, six sigma and lean have many similarities, especially concerning origin, methodologies, tools and effects, they differ in some areas, in particular concerning the main theory, approach and the main criticism. The lean concept is slightly different from TQM and six sigma. However, there is a lot to gain if organisations are able to combine these three concepts, as they are complementary.

In the business world, there has been some debate when it comes to Lean vs Six Sigma. Most people have strong opinions about which method is more effective for cutting costs and eliminating waste. Lean manufacturing is a systematic way of eliminating waste and creating flow in the production process, while Six Sigma is a set of techniques that strive to greatly reduce the rate of defects. Essentially, Six Sigma and Lean systems have the same goal. They both seek to eliminate waste and create the most efficient system possible, but they take different approaches toward how achieving this goal.


Findings – Although both methodologies are focused on process and quality improvement.


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Tools and techniques : A comprehensive set of tools and analytical techniques that are used to identify and solve problems. Process and methodology : A series of phases that organize the use of the problem-solving tools to ensure that the true root causes are found and that a solution is fully implemented. Mindset and culture : A way of thinking that relies on data and processes to achieve operational performance goals and continuously improve. These three elements reinforce each other. Analytical techniques are not used effectively unless there is a process for applying them and a mindset of continuous improvement creating the need for them.

Lean Six Sigma and Six Sigma are organizational improvement programs. The concept behind the lean approach originated in post-World War II Japan, where Toyota executives created a better match for its mass production needs than that offered by the Henry Ford manufacturing system, which focused on cost-reduction in the mass production of identical products. Six Sigma, which was developed in the s by Motorola, stresses quality improvement. Douglas Ferguson, writing for the Institute of Management in an online article, defines "lean" as a philosophy and describes Six Sigma as a dynamic, problem-solving program.

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4 comments

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  • Desctodolsa1989 02.05.2021 at 01:25

    Six Sigma is about reducing defects and improving quality.

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