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Lean Wiki

Lean Wiki is the latest online encyclopedia of lean tools and resources. It provides an easy way to access a range of high-quality articles on lean topics. The tools and resources are neatly organized into categories, making it easy for you to find what you need.

Latest Article: Understanding Muda Mura Muri: The Different Types of Wastes in Lean

Focused on lean tools, concepts and ideas, our Lean Wiki is a selection of key explanations to help you become familiar with the Lean methodology. We explore some of the key ideas behind Lean Thinking and explore core Lean terminology and principles.

Lean Thinking and Waste Identification
Last Update: Understanding Muda Mura Muri: The Different Types of Wastes in Lean
Lean Articles

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Lean Articles

Lean Wiki Articles

Lean Thinking and Waste Identification

Understanding Muda Mura Muri: The Different Types of Wastes in Lean

In the realm of Lean manufacturing and continuous improvement methodologies, understanding the three primary types of wastes is crucial for any organisation striving for operational excellence. In broader waste management practices, biodegradable waste, which includes organic materials that decompose naturally through microorganisms, sunlight, and oxygen, plays a significant role. These wastes, known as Muda, Muri, and Mura, represent non-value-adding processes, overburdening of employees or machines, and unevenness in workload or production flow respectively. These are the three types, or three categories, of inefficiency as defined in the Toyota Production System (TPS), a foundational methodology for Lean management. The three concepts—Muda, Mura, and Muri—are fundamental to Lean and are used by companies to improve efficiency, reduce waste, and foster continuous improvement. Having a sense of all three concepts is essential for effective process improvement, as it enables organisations to holistically identify and address inefficiencies. Identifying and eliminating these wastes can significantly enhance efficiency, reduce costs, and improve overall productivity. Let’s delve deeper into each of these types to uncover how they can affect an organisation’s performance and what strategies can be employed to mitigate their impact.

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Histogram: A Comprehensive Guide

A Histogram is an essential tool in the realm of data visualization, acting as a graphical representation of data distribution. They provide a visual interpretation of numerical data by showing the number of data points that fall within a specified range of values, called ‘bins’. This comprehensive guide aims to delve deep into the world of histograms, breaking down their complexity and highlighting their practical application in various fields.
Whether you’re a student, a data analyst, or just a curious reader, this guide will help you understand histograms and their relevance in making sense of vast data. Sit back, enjoy, and let’s embark on this journey together to understand the histogram.

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Standard Deviation

Demystifying Standard Deviation: A Beginner’s Guide

Have you ever wondered how to measure the variability of data, whether in finance, sports, or even daily life? Enter the realm of ‘Standard Deviation’. In the simplest terms, standard deviation quantifies the variance or dispersion of a set of values. Imagine you are tracking your daily steps or analyzing a company’s stock prices. Some days will inherently show more fluctuation than others. By calculating the standard deviation, you can gain a deeper understanding of how much these values typically deviate from the mean, or average. This is an invaluable tool, enabling us to make more informed decisions and predictions whether in personal fitness goals or financial investments.

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SIPOC Diagram 00

Understanding SIPOC: A Comprehensive Guide for Businesses

SIPOC Introduction

The SIPOC tool is essential in Lean Six Sigma projects, providing the framework for mapping out a process from start to finish. It stands for Suppliers, Inputs, Process, Outputs and Customers (hence SIPOC) and helps identify who or what is involved at each stage of the process. Understanding how these elements interact with one another allows for more efficient processes that can be measured and improved upon. With its structured approach to problem-solving and streamlining business operations, mastering the SIPOC tool should be a priority for any organisation looking to optimise its workflows.

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Six Sigma Levels

What is a Sigma Level: A Key Metric in Process Capability

Sigma Level Introduction

Sigma level is a key metric used to measure the capability of a process. It indicates how well a process meets customer requirements and can be used to compare different processes against each other. Sigma level measures the number of standard deviations from the mean that a process falls within its specification limits.

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Scatter Chart

How A Scatter Plot Can Upgrade Your Data Analysis Strategy

Scatter Plot

A scatter plot is a powerful tool when it comes to data analysis. A scatter diagram can provide insight into the relationship between two variables, which may not be evident through other visualizations. The scatter chart quickly helps identify if any relationship exists. The Scatter Diagram and Scatter Chart or Scatter Plot can also help identify outliers and correlations that can improve predictive modelling or decision-making. By understanding how to visualize your data using the scatter diagram, you can take your data analysis strategy to the next level!

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SMED Change Over in Printing

SMED and the Reduction of Changeover Times

Summary

The Lean Six Sigma professional is always looking for ways to increase efficiency and reduce waste. One of the most effective strategies for achieving this goal is SMED, or Single-Minute Exchange of Dies. This method requires an understanding of the different stages involved in a changeover process and how to eliminate unnecessary steps and maximize value. By implementing SMED techniques, organizations can significantly reduce their changeover times while improving quality and overall performance. In this article we will discuss what SMED is, its benefits, and strategies that can be used to enhance your organization’s changeover times.

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Pugh Matrix

An Overview of the Pugh Matrix: What Is It and How Does It Work?

Summary: Pugh Matrix

The Pugh Matrix, or the Decision Matrix or Selection Matrix, is a criteria-based matrix used to compare and evaluate multiple design options against a set of criteria. Stuart Pugh first developed it in the 1960s while working at Unilever Research Laboratory. The matrix allows teams to quickly and easily compare alternative improvement opportunities against each other to identify the design solutions that best meet the customers needs.

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Focused female creating project charter

Why are project charters important and how to build a project charter

Project Summary

A project charter is an essential document for any successful project. It provides a clear statement of the project’s goals, scope, and objectives and serves as an agreement between all stakeholders on what needs to be accomplished. A well-crafted charter should provide direction for both the team members and those outside the team who are affected by or otherwise involved in the project. The development of a project charter ensures that everyone involved has a shared understanding of why they’re working together and how their efforts will contribute to achieving desired outcomes. Building a good one requires careful planning, consideration of various perspectives from key stakeholders, and thoughtful communication throughout its creation process.

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