Mohammed Hamed Ahmed Soliman
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Gemba is a Japanese word meaning the actual place where value-creating work happens. Many leaders use gemba only for solving problems, visiting only when there is an issue. Others practice gemba walks on a daily basis to follow up and monitor the situation. However, Toyota believes that leaders truly develop through daily experiences at the gemba. In reality, gemba is a principle for managing, developing and improving people and processes. It is a...
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Overall equipment efficiency (OEE) shows how well a machine or equipment is performing by comparing the number of defect-free products or parts it makes to its maximum potential output. The OEE of a machine or process at 100 percent means that it is working at its highest possible capacity without any errors.There are three things that make up OEE: availability, performance, and quality. When the actual output is less than expected, professionals...
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The purpose of this book is to present a set of guidelines to be used in the application of lean strategy principles and tools in modern organizations. This book aim is to highlight the potential role played by lean strategy tools for strategic planning and strategic management in the reference to the Hoshin Kanri policy deployment system.This book discusses several themes driven and concluded from Toyota that are required to deploy strategies and...
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Production kanban, which translates to "sign" or "signboard" in Japanese, instructs an upstream process on the kind and number of goods to produce for a downstream process. In a pull system, a kanban is a signalling tool that provides approval and instructions for the manufacture or withdrawal (conveyance) of products. The conveyance used by the downstream process is referred to as the "withdrawal." The assembly process and the client, the assembly...
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To make it easier for people to see how their improvements fit into the bigger picture, it's important to have a clear vision and purpose as part of the lean strategy and strategic plan. People should have knowledge about their intended destination. They want to know where you are heading.
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Takt time is calculated as the amount of manufacturing time that is available divided by the volume of orders. In the 1930s, the German aviation industry employed Takt for the first time as a production management tool. The idea was widely used within Toyota in the 1950s, and by the late 1960s, it had been adopted by the majority of the Toyota supplier base. Every month, Toyota assesses the takt for a process, with a modifying review occurring every...
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TPS is a Thinking Production System rooted in leadership and a comprehensive set of principles, we can begin to fully appreciate its potential and apply it effectively in diverse industries and contexts. So, what exactly is TPS? It is a holistic approach to production that requires a shift in mindset and a deep understanding of the principles that drive its implementation. TPS is not limited to a specific industry or a set of rigid techniques. It...
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Yes, people called the Toyota Prodcution System an inventory reduction program when they first heard of it. "Just in time" is one of the main pillars in the TPS. "Just in time" ideally means "one-piece flow." Inventory is the greatest waste in the process, and it hides many problems, such as quality problems, breakdown times, waiting waste, and more. Let's get back to history. Prior to the 1970 oil crisis, very few people in the world know what Toyota...
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Andon is a system that alerts people to problems before they happen, in order to make the process more efficient and prevent issues. In manufacturing, an andon is a system that tells managers, maintenance workers, and other employees about a problem with quality or the manufacturing process. But is this all that Andon being?
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Changing how we manage people is important for making any business plan work. In his great book Toyota Kata (2009), Mike Rother talks about how Toyota changes the way its employees act and think by forming new habits and culture. Using the word "kata" to explain how Toyota solves problems instead of using the pharase "problem solving." Toyota's way helps create a better work environment by teaching people to become better leaders and make positive...
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Yet many companies focus on the mechanisms of implementation--one-piece flow, pull production, takt time, standard work, kanban--without linking those mechanisms back to the pillars that hold up the entire system. JIT is fairly well understood, but jidoka is key to making the entire system stick. A lot of failed implementations can be traced back to not building this second pillar. Jidoka is one of the main pillars of the TPS. The TPS is presented...
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Takt is a German word that means the speed or rhythm of something. Takt time is a number that helps make sure that the pace of making pacemakers matches the pace of selling them. One of the most important things to consider in lean manufacturing is takt time. This is the rate at which customers want a certain group of products to be produced by one step in the manufacturing process. Takt time is a number that tells us how much time we have to make...
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Heijunka, which means "production smoothing or leveling" in Japanese, is a method that helps balance production in all areas and with suppliers over time. It aims to make Just-In-Time (JIT) production easier. Heijunka is an important part of Just-in-Time (JIT) production. It means finding and keeping a consistent level of production. The main purpose of using the Heijunka technique is to provide goods at a consistent pace, which allows other operationsto...
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Giving machines and operators the power to notice when something is wrong and quickly pause their work. This helps companies to increase quality at every step of the process and to have workers and machines work separately for better efficiency. Jidoka is a fundamental concept in the Toyota Production System, which is an important way of doing things in Toyota factories. It is one of the two main principles, along with just-in-time.Jidoka is a system...
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Continuous improvement, also called "Kaizen," means always trying to make things better. It involves making small, gradual changes to processes, systems, and activities in order to keep improving them over time. The aim of getting better constantly is to get rid of unnecessary things and make things go smoother, be better, and make customers happier.Unfortunately, many people wrongly believe that plan-do-check-act (PDCA) is a cycle for improving things...
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Management has the important job of teaching and helping people get better. But they also need to give support, listen, motivate, give power, and give challenges. If you want people to do what you want them to do and do it well and passionately, you have to find the way to encourage and motivate them.Management has the important job of teaching and helping people get better. But they also need to give support, listen, motivate, give power, and give...
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Many kaizen programs aim to have a continuous flow, which means processes are constantly moving without interruptions. This is also the ultimate goal of lean production. A "cell" is a group of devices that perform tasks in a certain order, but it is not often to find a smooth and uninterrupted process, which is what makes a cell.In an ideal world, the product would flow smoothly from the beginning to the end, reaching the customer through all the...
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At first, Taiichi Ohno, who helped create the Toyota Production System, didn't want to write it down because he was afraid people would only pay attention to the tools and theories. When he finally wrote it down, he described it as a house because a house can be considered as a system. If you remove any supports holding up the roof, the roof and everything connected to it will fall down. One of the students of Ohno said that Toyota made a mistake...
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The act of changing a line or machine from making one product to making another is called changeover. Changeover is when we switch from making one product (product A) to making a different product (product B). This involves getting the machines ready and getting everything prepared for the new process. It is considered a waste of time because you are not using the machine at that time, which means you are not producing anything. Additionally, you...
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By minimizing waste and waiting times, the lean operational concepts and techniques serve to maximize value for patients. It places a strong emphasis on staff involvement, ongoing improvement, and consideration of the demands of the consumer.. All employees of the firm, from clinicians to operations and administrative personnel, continuously work to identify areas of waste and eliminate anything that does not create value for patients using lean concepts...