Start at Shipping: Why Walking Upstream Changes What You See When visiting a factory, we usually follow the production process from beginning to end. We start with incoming materials, move through each operation, and finish at shipping. It is a logical way to understand how a product is made. But it is not always the best way to understand where a factory is struggling. My coach often took the opposite approach: start at the shipping area and walk upstream. At first glance, t

Recently, I came across a section about factory work in a Japanese elementary school textbook. It described how people make products while carefully managing raw materials, temperature, and hygiene. It reminded me of visiting a Toyota factory on a school trip when I was an elementary school student. Years later, I still remember that experience. Japanese textbooks introduce children to many kinds of work—not only manufacturing, but also farming, retail, firefighting, and poli

Kaizen: Knowing What to Change—and What to Preserve “What matters is continuing to change—and remaining unchanged.” This lyrics from Noriyuki Makihara’s song Tōku Tōku always makes me think about Kaizen. At first, the two ideas seem contradictory. How can we embrace change while remaining unchanged? Yet this tension sits at the heart of Kaizen—and leadership. An organization that refuses to change risks becoming trapped by its own habits. But an organization willing to change

A colorful board. Clearly outlined spaces. Every tool hanging neatly in its place. It looks impressive. It photographs well. And it is often introduced as the first step in implementing 5S. But before we celebrate, we should pause and ask: Is this really 5S—or have we simply made unnecessary tools look organized? The value of a 5S board is not in its appearance. It is in how it helps us question what we need, support standardized work, eliminate Muda, and generate further kai

The Japanese term Sagyo Youryousho (作業要領書) is often translated into English as “Work Element Sheet.” In some organizations, it is also translated as “Work Instruction Sheet.” Although these terms may appear similar, they do not always communicate the same concept. A Work Instruction Sheet usually explains what a worker should do. It may describe the required steps, sequence, tools, conditions, and safety precautions. A Work Element Sheet can include the same information, but

In the Toyota Production System (TPS), Jidouka is often described as “automation with a human wisdom.” One of its most important principles is the authority—and responsibility—to stop a process when a problem occurs. The purpose of stopping is not simply to halt production. It is to prevent defects from moving forward, make abnormalities visible, call for help, and correct the underlying problem. The key phrase is: when there is a problem. We stop when an abnormal condition t

In TPS management, Mura is commonly translated as unevenness, inconsistency, or variation. It describes the instability that occurs when demand, workload, processes, resources, behavior, or results fluctuate without sufficient control. The Japanese word is often written using the character 斑, which can represent irregularity, mottling, or uneven patterns of color. This visual meaning offers a useful way to understand Mura: something lacks uniformity. Conditions change from on

Muri Means More Than “Overburden” The Japanese word “muri” is commonly translated as “overburden.” Although this translation is useful, it captures only part of the concept. The word muri (無理) combines two ideas: Mu means “without” or “does not exist.” Ri means “reason,” “logic,” or “principle.” Taken literally, muri describes something that lacks reason, logic, or a sound operating principle. In a business or operational context, it points to work being performed without a r

Was This Inventory Built Intentionally—or Did It Just Accumulate? Taiichi Ohno, the father of the Toyota Production System, was known for asking simple but penetrating questions at the genba. When he encountered inventory, he asked: Was this inventory created intentionally, or did it simply accumulate? At first, this may sound like a straightforward question about materials. In reality, it challenges leaders to examine how decisions are made throughout an organization. Is wha

“Respect for humanity” is often translated as “respect for people.” While the phrases may sound similar, “respect for humanity” expresses a much deeper principle. In Japan, this concept has been discussed since the postwar era alongside the Toyota Production System (TPS), Total Quality Management (TQM), and other approaches to management and Kaizen. In a 1970 article, Yoshinobu Maekawa described five essential characteristics of humanity: Human beings are alive. Human beings

Execution, Not Ideas, Creates Results “Anyone can come up with the same ideas. It’s not that Kiichiro was some kind of genius. What matters is how far you go in actually putting those ideas into practice.” — Eiji Toyoda Eiji Toyoda on the “Just-in-Time” Philosophy. In business, we often celebrate the power of a groundbreaking idea. We admire visionary founders, innovative products, and strategies that transform entire industries. This can lead us to believe that success begin

“Standardization enables the delegation of authority. Authority should be delegated, but responsibility cannot be delegated entirely. Therefore, standards must also define how exceptions and abnormal situations should be handled.” — Kaoru Ishikawa Delegation is essential to building a scalable organization. As a company grows, leaders cannot continue making every decision, approving every action, or supervising every task. Authority must move closer to the people doing the wo

Taiichi Ohno, the architect of the Toyota Production System, once described exceptional management as “Ninjutsu management.” 🥷 The popular image of the ninja—dressed in black, disappearing in clouds of smoke, and possessing supernatural abilities—is largely a product of fiction. Nevertheless, Japanese history suggests that certain groups specialized in covert operations, intelligence gathering, and moving unnoticed, particularly at night. 🥷 The Japanese character nin (忍), f

Are We Spoiling Our Operations? We often hear the advice: “Don’t spoil a child.” The reasoning is simple. If we respond to every request by giving a child more—more attention, more comfort, more resources—they may never learn to solve problems independently. But what about business operations? When operations struggle, our instinct is often to give them more: More labor More machines More warehouse space More inventory More budget We call this investment or strategy. But som

What is the first thing you do when you go to the Genba? Look at the performance boards? Ask for a project update? Talk to the supervisor? No. Before doing any of those things, simply observe for a while. See Before You Listen A leader visited the Genba and immediately asked for an update on a troubled project. The team explained, “The machine manufacturer supplied us with a bad machine.” The conversation quickly turned toward the supplier: What should the supplier fix? Who s

Let me say something uncomfortable about Toyota Production System (TPS): Most companies do not fail at TPS because their people cannot solve problems. They fail because the organization has made it possible to survive without solving them. You can train people in A3. You can teach 5 Why. You can introduce standardized work. You can install Andon. You can put visual management boards all over the factory. And still fail. Why? Because none of these tools matter if the organizat

There is a crime that is surprisingly common in manufacturing. It is not stealing. It is not fraud. It is creating an isolated island on the shop floor. In Japanese manufacturing, there is a powerful expression: 「離れ小島を作るな」— “Do not create isolated islands.” An isolated island is a workplace, process, or person that becomes disconnected from the rest of the system. It may look efficient. It may even look highly independent. But it is dangerous. What Does an Isolated Island Loo

“When going far, one must always start from what is near.” 遠きに行くに必ず邇きよりす — The Doctrine of the Mean I previously wrote about a similar proverb: “A journey of a thousand miles begins with a single step.” - Laozi Although these two sayings appear to express the same idea, there is a subtle difference between them. “A journey of a thousand miles begins with a single step” emphasizes the importance of taking action. No matter how ambitious the destination may be, we cannot make p

Build a system where making bad products results in a loss. Inspired by the management philosophy of Taiichi Ohno. One of the most important principles in manufacturing can be expressed in a simple but provocative statement: Make a bad product, and you should lose. At first, this may sound harsh. It might even appear to promote punishment. But that is not the point. The principle is really about accountability, feedback, and the thoughtful design of management systems. In man

Toyota uses some strange Japanese words and ‘Gouguchi’ is one of them. Let’s take a deeper dive into the origins, evolution, and ongoing influence of this concept. Gouguchi is a unique Japanese term central to Toyota’s legendary production system, yet its meaning remains elusive to many outside the company, including Japan. While it’s often translated as the mass-production stage following initial preparations, this definition barely scratches the surface. To truly appreciate