A production management board, sometimes called an analysis board or an hour-by-hour board, should reflect the reality of the shop floor. Its purpose is not to burden the operator with paperwork but to help management understand what is happening, respond quickly, and improve the system. In many workplaces, the board is treated as the operator’s responsibility. A paper board or computer system is introduced, and the expectation is that the operator will keep it updated throug

Taiichi Ohno, the visionary architect of the Toyota Production System, was known for turning ordinary language into profound management insight. Among the more unusual expressions associated with his thinking is “Dekansho production.” At first hearing, the phrase sounds almost lighthearted, even whimsical. Yet beneath that playful surface lies a serious warning against waste, underutilization, and the danger of managing by appearances rather than by reality. To understand the

Mitori-geiko means learning by observing others. In Japanese martial arts, performing arts, and crafts, it refers to a training method in which the learner closely observes a master or a colleague to absorb technique, judgment, and practice. There may be no formal instruction at the time. Learning comes from attention, pattern recognition, and reflection. Is it the best method in every situation? No, but it has surprising value. One benefit is that it reveals how people behav

“Check means to reflect.” Taiichi Ohno Taiichi Ohno’s words are easy to quote, but they become much more powerful when we slow down and ask what they mean in practice. In the Plan-Do-Check-Act cycle, the word *Check* is often misunderstood as a simple comparison: Did we hit the target or not? Did the numbers match the plan? Did we succeed? But in Ohno’s view, *Check* goes far deeper than measurement. It is not merely about verifying outcomes. It is about reflection — a discip

Sakichi Toyoda’s auto loom is often remembered for one famous idea: its ability to stop automatically when a defect occurs. This concept later became known as Jidouka in the Toyota Production System (TPS). Jidouka is powerful because it builds quality into the process instead of inspecting it at the end. The machine itself becomes smart enough to protect the customer. But there’s another equally important concept built into this machine that deserves more attention. That conc

“Seeing once is better than hearing a hundred times, and taking action once is better than seeing a hundred times.”
— Taiichi Ohno There is a powerful simplicity in this quote. In just a few words, it captures a truth that applies to learning, leadership, work, and life itself: knowledge becomes truly meaningful only when it moves beyond words and observation and into action. We live in a world overflowing with information. Every day, we read articles, watch videos, listen to

Instead of Making Excuses, Think About Getting Things Done Taiichi Ohno There was a time when my coach visited the plant. The main machine was down, and I made an excuse: “The machine happened to be down.” He laughed. “Stop making excuses. How often do you think I come and the machine happened to be down? This is not a miracle. The machine is frequently down.” That line stayed with me. Because he was right, of course. We are very good at making excuses. The market is bad. The

“Double-edged sword.” A type of sword that we didn’t use in Japan. It means that if we don’t use it properly, it could bounce back and hurt the user itself. Kanban is a double-edged sword: if we don’t use it properly, it can hurt the organization. If we don’t have leveization, the chaos will hurt the upstream. If we apply it to large batch production, the bull-whip effect will kill the upstream. If we don’t have the standardized work, the signal will scatter. If we have a hig

Japanese traditional performance art “Nou.” Efficiency. Multi-skilled operator. Capacity. At first glance, these sound like random, unrelated words. One belongs to the world of theater and culture. Another to industrial engineering. Another to HR or operations. Yet in Japanese, they all share the same character: 能, pronounced Nou. Once we notice this, we can start to learn something important about how we think about people, work, and improvement. The interesting character 能

When Japan imported the concept of “efficiency,” as with many other ideas, we expressed it in Kanji. Interestingly, there are two distinct “efficiencies” in Japanese. The second symbol in both idioms represents rate, ratio, or percentage. Therefore, the distinction between the two idioms lies in the first symbol, which we will explore further. Understanding these symbols will empower you to apply the concept of efficiency in practical contexts. 🔹 Kou-Ritsu 【効率】: Efficiency a

Many people rush to emulate Toyota’s tools. Kanban cards. Andon cords. Standardized work templates. We see the visible artifacts, assume they are the secret, and hurry to copy them. But before we do that, it’s worth asking a simple question: What is a “tool”? What “Dougu” Really Means In Japanese, a tool is called “Dougu.” It’s written with two characters: Dou【道】 – the way, the path, the Tao. Gu【具】 – the material, to equip, to be prepared. Put together, Dougu is not “just a t

トヨタ自動車労働組合. (2025, December 16). 2026年度_豊田（本社）＆工場カレンダー. https://www.kabanet.org/infos/toyota_calender/628 [Red Box is Japanese national holiday. Red letter is Toyota holiday.] For decades, Japan’s automobile industry has quietly followed its own unique rhythm of work and rest: the automobile calendar, often nicknamed the Toyota calendar. On May 22, the Japan Automobile Manufacturers Association, Inc. (JAMA) announced that it will end this long-standing practice. This decision

There is a lot of excitement right now about AI and humanoid robots handling operational work. Videos of humanoids walking through factories, picking up parts, or turning parts are spreading quickly. It’s easy to imagine a future where we simply drop these robots into our existing operations and let them handle everything. But although the technology is exciting, we need to cool down a bit. New technology does not automatically translate into better operations or business res

In Japan, we have a phrase, “Government ponchi-e,” which is sometimes compared to a mandala. It refers to the overly complicated, everything-in-one-place charts you often see in government documents and policy presentations. At first glance, these diagrams can look impressive. They feature colorful arrows, boxes, icons, and detailed labels, all packed onto a single sheet—usually A3. They give the impression that “everything is covered” and that a huge amount of work has been

“資料と紙量と死量” (documents, paper volume, and dead volume) is a well-known phrase from Taiichi Ohno, the architect of the Toyota Production System. They sound similar (All read as “Siryou”), but the idea is very simple: • The more documents 【資料】 you create, • the more paper volume 【紙量 / information】 you generate, • and eventually it becomes “dead volume” 【死量】 that kills the work. In other words, too much information actually prevents work from moving forward. I’ll apply this phras

The Muda of Waiting: What “Temachi” Really Means In the Toyota Production System, we often talk about muda. One important type is the muda of waiting. But the original Japanese term that Taiichi Ohno used is a bit more nuanced: “temachi” 【手待ち】. Let’s unpack that. What Is “Temachi”? 手待ち The word temachi is written as: • 手 (te) – hand • 待ち (machi) – wait Literally, it means “waiting hands.” In a production or work context, this is when hands — people, machines, or resources — a

過則勿憚改. 
“When you realize you have made a mistake, do not hesitate to correct it.” 
— Confucius This short saying from Confucius captures the essence of Kaizen, the Japanese philosophy of continuous improvement. In modern business, Kaizen is often associated with factories, productivity, and efficiency. But at its core, it is more human: it is about having the courage to recognize mistakes, learn from them, and keep improving. In this post, we will explore the importance of K

“No standard, no improvement.” This simple phrase sits at the heart of the Toyota Production System. Yet in many workplaces, we face a very real problem: what do we do when there is no standard to begin with? No clear process. No visual guide. No shared understanding. In that situation, trying to improve is like renovating a house that exists only in someone’s imagination. There is nothing concrete to inspect, question, or change. So where do we start? When There Is No Standa

Why I Hate the Slogan “Quality Is Everybody’s Responsibility” There’s a phrase that sounds right, feels right, and gets repeated in conference rooms, posters, and training decks everywhere: “Quality is everybody’s responsibility.” And yet—on the shop floor, in projects, in real life—it quietly does more harm than good. Let’s be honest about why. --- 1️⃣ When Everybody Owns It, Nobody Owns It. The slogan suggests inclusiveness. In reality, it creates ambiguity. If quality is “

On social media, you’ll often see the claim that “Poka‑yoke” was invented by Shigeo Shingo. That statement is only half the story. When we go back to Shingo’s own writing, the picture is more nuanced and far more interesting than a simple “he invented a word” narrative. From “Foolproof” to “Poka‑yoke.” Shingo himself described Poka‑yoke as: “Basically, it is the same line of thinking as ‘foolproof,’ which was thought to apply only to safety issues.” The English word “foolproo