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7 Wastes or the Toyota Seven Forms of Muda

One of the key steps in Lean and TPS is the identification of which steps add value and which do not. By classifying all the process activities into these two categories it is then possible to start actions for improving the former and eliminating the latter. Some of these definitions may seem rather ‘idealist’ but this tough definition is seen as important to the effectiveness of this key step. Once value-adding work has been separated from waste then waste can be subdivided into ‘needs to be done but non-value adding’ waste and pure waste. The clear identification of ‘non-value adding work’, as distinct from waste or work, is critical to identifying the assumptions and beliefs behind the current work process and to challenging them in due course.

The expression “Learning to see” comes from an ever developing ability to see waste where it was not perceived before. Many have sought to develop this ability by ‘trips to Japan’ to visit Toyota to see the difference between their operation and one that has been under continuous improvement for thirty years under the TPS. Shigeo Shingo, a co-developer of TPS, observed that it’s only the last turn of a bolt that tightens it – the rest is just movement. This level of refined ‘seeing’ of waste has enabled him to cut car body die changeover time to less than 3% of its duration in the 1950s as of 2010. Note that this period has allowed all the supporting services to adapt to this new capability and for the changeover time to undergo multiple improvements. These multiple improvements were in new technologies, refining value required by ‘downstream’ processes and by internal process redesigns.

The following articles explain the Toyota “seven wastes” by example, showing how the 7 forms of Muda can be identified in any context.

Credit goes to Taiichi Ohno, for he identified common resources that either produce waste or were a impacted by waste. They were identified by Toyota’s Chief Engineer, Taiichi Ohno as part of the Toyota Production System

Information Overload: Waste of Overprocessing and Overproduction

by Pete Abilla on June 9, 2011

We know that Overprocessing is one of the 7 Wastes in Lean. While describing them is helpful, seeing them in our own work life is a bit more difficult. But, if we step back and gain some perspective, we’ll find that there is waste all around us. Here’s an example from my own life: I [...]

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10 Things Osama Bin Laden Has in Common with the 7 Wastes of Lean

by Pete Abilla on May 3, 2011

As most of us know by now, Osama Bin Laden has been found and killed. This is a great day for the World Trade Center families and survivors, for America, and for the world. So, to keep within the context of lean manufacturing and process improvement in general, here are the 10 Things Osama Bin [...]

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Symbiotic Relationship: The 7 Wastes are Not Equal

by Pete Abilla on March 15, 2011

It is astonishing how the principles in Taiichi Ohno’s seminal book “Toyota Production System: Beyond Large Scale Production” are so relevant today, probably even more so when the book was first published. Specifically, I want to highlight a key insight from Taiichi Ohno on the waste of Overproduction and Waiting. All Wastes Are Not Equal [...]

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The Seven Wastes of Human Resources (HR)

by Pete Abilla on July 17, 2010

Pete’s Note: I’m pleased to have Jim Baran provide a guest post for us today on the Seven Wastes of Human Resources – in other words, within the Human Resources system, what and where and how does waste look like? Enjoy his article below and more about Jim Baran at the jump. Lean is a [...]

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Waste Hides in Plain Sight

by Pete Abilla on July 10, 2010

In Lean Management, the phrase “learn to see” was not coined by accident. John Shook and company chose a great term to describe the transformation that happens when individuals and organizations learn the difference between value, waste, and they begin to see old things in new ways. Waste hides in plain site. Yet it hides [...]

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The Seven Wastes of Product Development

by Pete Abilla on June 4, 2010

Pete’s Note: I’m happy to present this guest post on The Seven1 Wastes of New Product Development by Tim McMahon. You can learn more about Tim McMahon2 after his post on The 7 Wastes of New Product Development3. The first step in eliminating waste from New Product Development (NPD), and thus improving the process, is [...]

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The Seven Wastes of Medical Billing

by Pete Abilla on June 2, 2010

medical billing, medical transcription, medical coding

Pete’s Note: I’m very proud to feature a guest post from friend, advocate for and practitioner of Lean Thinking in Health Care, and an all-around good person, Devin Cabanilla1. Learn more about Devin immediately after his post on The Seven Wastes of Medical Billing Administration. The medical billing process and processing and revenue stream in [...]

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The Seven Wastes of Paid Search Marketing

by Pete Abilla on May 26, 2010

Pete’s Note: I’m pleased to bring you this guest post from Matt LeVeque. This post on the Seven Waste of Paid Search Marketing shows Matt’s approach to paid search marketing and how his approach is heavily influenced by quality principles. More about Matt after the post 1. I’VE BEEN WORKING in the Search Engine Marketing [...]

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