difference between lean and six sigma pdf

Difference Between Lean And Six Sigma Pdf

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Similarities and differences between TQM, six sigma and lean

Six Sigma is about reducing defects and improving quality. It relies heavily on data analysis and leads to potentially more checks and balances to identify and remove the causes of defects in a process to minimise variability — so because this means putting more resource into production and by employing more trained staff who can utilise the Six Sigma methodologies, does this mean that it is counterintuitive to Lean? To put it another way, Six Sigma is great for people who are willing to pay more for quality and a reliable product — say an aircraft engine manufacturer who wants to ensure that each component is defect free or at least as defect-free as is possible — i. Toyota is consistently voted one of the most reliable car brands in the world — They developed manufacturing into what we now know as Lean — so how have they managed to achieve this quality without employing Six Sigma? Toyota does not use Six Sigma or Statistical Process Control tools overtly, however as well as focussing on Muda or Non-Value Adding waste, they also focus on Muri, which is overburden and Mura which is unevenness or variation. Reducing this variation is fundamental to the Toyota Production System, as is predicting demand and balancing capacity to meet this demand.

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.

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. Six sigma and lean are excellent road-maps, which could be used one by one or combined, together with the values in TQM.

Six Sigma vs. Lean Six Sigma

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.

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. The paper provides guidance to organisations regarding the applicability and properties of quality concepts.


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What is Lean Six Sigma?

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. Munteanu Published Engineering. This paper analyzes the benefits of Lean Six Sigma in comparison with Lean and Six Sigma, traditional improvement methodologies. The introduction highlights the appearance of Lean Six Sigma, early s, as well as the benefits brought by the integrated approach.

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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Difference Between Lean Six Sigma and Six Sigma

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Lean vs Six Sigma: What’s the Difference & Use Cases

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5 comments

Calandre D.

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Achill B.

Tools and techniques : A comprehensive set of tools and analytical techniques that are used to identify and solve problems.

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Nozycoda

There is an ongoing debate in some organizations regarding the difference between lean and six sigma , and whether they are mutually exclusive.

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Rofoxgmeza1967

In the business world, there has been some debate when it comes to Lean vs Six Sigma.

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Dirk M.

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

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