Category Archives: Toyota Production System (TPS)

The Toyota Way – Two Pillars

Toyota is receiving plenty of criticism now, much of it for good reason. There is also a large amount of psychology involved. From what I have seen, the insurance companies still see better claims history (fewer and lower cost claims) against Toyota than other manufacturers. And there is another strain that seems to enjoy criticizing what has been praised. Toyota does need to improve. But that is improvement of the existing management system, not a need to radically change the management of the company.

I think Toyota, even with the problems, is a fantastic example of a very well managed company. Yet even with all the study of lean manufacturing even basic ideas are overlooked. For example, the two main pillars of the Toyota way are “continuous improvement” and “respect for people.” For all of us, it is valuable to refocusing on core principles. We are too often looking for the next new idea.

This is one way of looking at the pillars of the Toyota Production System, from the Toyota Technical Center – Austrailia

Image of Toyota's pillars of management: respect for people and continuous improvement

Continuous Improvement means that we never perceive current success as our final achievement. We are never satisfied with where we are and always improve our business by putting forth our best ideas and efforts: we are keen to create better alternatives, question our accomplishments and investigate future definitions of success.

There are three building blocks shaping our commitment to Continuous Improvement:

1. Challenge – we form a long term vision, meeting challenges with courage and creativity to realize our dreams;
2. Kaizen – we improve our business operations continuously, always driving for innovation and evolution
3. Genchi Genbutsu – we go to the source to find the facts to make correct decisions, build consensus and achieve goals.

Respect For People refers to our own staff as well as the communities and stakeholder groups that surround us and we are part of. We respect our people and believe the success of our business is created by individual efforts and good teamwork.

Respect For People is translated in:

1. Respect – we respect others, make every effort to understand each other, take responsibility and do our best to build mutual trust
2. Teamwork – we stimulate personal and professional growth, share the opportunities of development and maximize individual and team performance.

These elements combined define our corporate DNA, provide a way of operating that is recognised by each and every Toyota-member around the globe and enables us to sustain our success in the future.

Back to Basics for Toyota by Akio Toyoda

When my grandfather brought Toyota into the auto business in 1937, he created a set of principles that has always guided how we operate. We call it the Toyota Way, and its pillars are “respect for people” and “continuous improvement.” I believe in these core principles. And I am convinced that the only way for Toyota to emerge stronger from this experience is to adhere more closely to them.

While recent events show Toyota obviously needs to improve, that has been true all along (it is just more obvious lately). Some may see this as an indication that these lean manufacturing ideas based on Toyota’s practices are no better than other management practices. I don’t believe this. I feel just as strongly about the value of lean management as ever. I think that the recent events show you that no matter how well an organization in managed there is plenty of room to improve. Toyota never was close to perfection. They have much to improve, but they are still one of the best managed companies in the world.

My comments in 2005:

I think the instances of such failures are just a sign that even Toyota still has quite a bit to improve. I think this announcement likely is a result of common cause variation (it is the natural result of the current system). The natural result (of the system) is not that they have this particular failure, but that this recall is consistent with the % of vehicles that required a recall of this general character. I believe they are getting better over time but they still have a long way to go. With a result based on common cause you want to look at the entire system when designing an improvement plan not at the root cause of the seat belt issue. See Responding to Variation online and the book, Forth Generation Management, by Brian Joiner.

And my comments in 2007:

I don’t agree that they need to rethink their purpose in life (I have a feeling that is taken out of context). They need to maintain and maybe even increase their commitment to their purpose in life.

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Toyota’s Journey to Lean Software Development

Toyota’s journey from Waterfall to Lean software development by Henrik Kniberg

Toyota builds cars (duh). In the past that didn’t involve much software, and the little software that was needed was mostly developed by suppliers and embedded in isolated components. Toyota assembled them and didn’t much care about the software inside. But “The importance of automatic electronic control system has been increasing dramatically year by year” said Ishii-san.

A modern car is pretty much a computer on wheels! In a hybrid car about half of the development cost is software, it contains millions of lines of code as all the different subsystems have to integrate with each other. He mentioned that a Lexus contains 14 million lines of code, comparable to banking and airplane software systems. Ishi-san concluded that “Therefore Toyota needs to become an IT company”.
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Most of Toyota’s ideas about how to do Lean software development resonated well with me. My feeling was that they are on the right track.

One thing bothered me though – the extreme focus on detailed metrics. I agree with the value of visualization, standardization, and data-driven process improvement – but only if used at a high level. My feeling was that Toyota was going to far. They say engineer motivation is critical, but how motivating is it to work in an organization that plans and measures everything you do – every line of code, every hour, every defect, how many minutes it takes to do an estimate, etc?

via: Justin Hunter

Toyota Stops Lines – Lots of Lines

The practice of stopping (either the machine automatically detecting a problem and stopping or a person stopping) the line when a problem is detected is part of Jidoka. Jidoka is also highlighting and making problems visible. Jidoka and Just in Time are the two pillars of the Toyota Production System. Today Toyota practiced Jidoka on a large scale: Toyota Halts Sales of Eight Models After Recall

Toyota Motor, still struggling to resolve a problem with accelerator pedals, said Tuesday it would temporarily stop selling and building eight models in the American market, including the popular Camry and Corolla sedans
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“This action is necessary until a remedy is finalized,” Robert S. Carter, a Toyota group vice president, said in a statement. “We’re making every effort to address this situation for our customers as quickly as possible.”

Toyota said it would immediately stop selling the Camry, Corolla and Avalon sedans, Matrix wagon, RAV4 crossover, Tundra pickup, and Highlander and Sequoia sport utility vehicles. It will also stop building those models the week of Feb. 1. All of the vehicles are assembled in the United States or Canada, at a total of five plants.

The models affected accounted for more than a million sales in 2009, 57 percent of Toyota’s American total for the year.
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The most recent recalls follow what Toyota insisted was a companywide effort to improve quality that was started by Katsuaki Watanabe, who served as its president before he was replaced last year by Akio Toyoda, grandson of the company’s founder.

My guess is there are quite a few people in Toyota that are getting a frustrated that they continue to have problems that they have been unable to successfully address. This strikes is as the kind of action initiated near the top of the organization chart to remind the organization that problems must be addressed immediately. It is not ok to continue business as usually when problems have not been addressed in the Toyota Production System. Toyota is capable of failing to live up to the principles of lean manufacturing. But they also seem to understand this risk and continue to strive to improve. To succeed though they need to improve results – intentions alone are not enough.

Management Webcast: Introduction to Lean Manufacturing

Webcast introduction to lean manufacturing by Ron Pereira. This is a great 9 minute introduction to the topic, for those not familiar with lean thinking. It sets the context for lean thinking and provides some history on how lean manufacturing has developed. Get videos on learning about lean from the Gemba Academy.

Related: Oranges, Pebbles, and Sand [the broken link has been removed] – Dr. Russell Ackoff Webcast on Systems Thinking – An Introduction to Deming’s Management Ideas by Peter Scholtes – Eric Schmidt on Management at Google – Management Webcasts – Workplace Management by Taiichi Ohno

Don’t Hide Problems in Computers

Making things visible is a key to effective management. And data in computers can be easy to ignore. Don’t forget to make data visible. Paul Levy, CEO of Beth Israel Deaconess Medical Center in Boston recently hosted Hideshi Yokoi, president of the Toyota Production System Support Center and wrote this blog post:

Together, we visited gemba and observed several hospital processes in action, looking for ways to reduce waste and reorganize work. It was fascinating to have such experts here and see things through their eyes. Mr. Yokoi’s thoughts and observations are very, very clear, notwithstanding a command of English that is still a work in progress.

The highlight? At one point, we pointed out a new information system that we were thinking of putting into place to monitor and control the flow of certain inventory. Mr. Yokoi’s wise response, suggesting otherwise, was:

“When you put problem in computer, box hide answer. Problem must be visible!”

The mission of the Toyota Production System Support Center to share Toyota Production System know-how with North American organizations that have a true desire to learn and adopt TPS.

Lean Manufacturing Webcast from India

This lean thinking webcast from India actually does a pretty decent job of providing an overview (for a business TV channel) even if they get some things a bit confused. The discuss TQM in India preceding lean which is an accurate view in my opinion – quality management shared many lean principles. They even talk of lean at Ford doing lean first. But they get the decades for that a bit off. They seem to mash together the “quality is job one” refocus on quality lead by Dr. Deming in the 1980’s with Henry Ford in the early 1900’s.

The webcast includes Jim Womack discussing lean thinking. He mentions the misunderstanding of lean as primarily cost cutting.

Akio Toyoda’s Message Shows Real Leadership

Speech by Akio Toyoda

Since the birth of Toyota, the company’s philosophy has always been to “contribute to society.”
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“Contributing to society” at Toyota means two things. First, it means, “to manufacture automobiles that meet the needs of society and enrich people’s lives.” And second, “to take root in the communities we serve by creating jobs, earning profits and paying taxes, thereby enriching the local economies where we operate.”
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Toyota has overcome many challenges during its seven decades of business. What has made this possible is the way we make our cars under our “customer first” and “genchi genbutsu” principles
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Rather than asking, “How many cars will we sell?” or, “How much money will we make by selling these cars?” we need to ask ourselves, “What kind of cars will make people happy?” as well as, “What pricing will attract them in each region?” Then we must make those cars.
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Through these processes, I would like to make Toyota’s product development and product lineup more region-focused. We will change our policy from achieving “a full lineup everywhere” to “a lineup necessary to meet the needs of each region”. We will also launch new vehicles that anticipate consumer needs and are exciting to drive.
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At the press conference in January, I talked about my desire to become “a president who is closest to the frontlines, or gemba.” I believe that the essence of management lies in the gemba, and Toyota employees play a vital role there.

Once again Toyota shows they are the type of management I want to invest in. In my last post I discussed another: Jeff Bezos at Amazon. Google management is another management system I am glad to invest in. Toyota, Amazon and Google are 3 of my 12 stocks for 10 year portfolio.

Toyota continues to show they are an exceptional company that doesn’t waver due to short term pressures. They know the management system they have in place is excellent. They always try to improve. And they react to evidence that shows they have room to improve. They then access the situation and move forward.

via: Toyoda on Toyota: A New Regime, A New Future

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The Trouble with Performance Reviews by Jeffrey Pfeffer

The Trouble with Performance Reviews [the broken link was removed] by Jeffrey Pfeffer

Managers don’t like giving appraisals, and employees don’t like getting them. Perhaps they’re not liked because both parties suspect what the evidence has proved for decades: Traditional performance appraisals don’t work. But as my colleague and fellow Stanford professor Bob Sutton and I pointed out in our book, Hard Facts, Dangerous Half-Truths, and Total Nonsense: Profiting from Evidence-Based Management, belief and conventional wisdom often trump the facts. And when it comes to performance evaluations, companies ranging from HR consulting firms to providers of software that automate the process have a big stake in their continued use.

The most basic problem is that performance appraisals often don’t accurately assess performance. More than two decades ago research done by professor David Schoorman showed that whether or not the supervisor had hired or inherited her employees was a better predictor of evaluation results than actual job performance.
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Possibly the biggest issue, however, is that performance appraisals focus managers’ attention on precisely the wrong thing: individual people. As W. Edwards Deming, the father of the quality movement, taught a long time ago, company performance often results more from variations in systems than from the individuals doing the work. One of the reasons Toyota Motor has been so successful for decades—even as leaders have come and gone and the automobile market has changed—is that the fundamentals of the Toyota management system, which emphasizes quality, continuous improvement, and standardized tasks, provide the advantage. By focusing on the presumed deficiencies or strengths of people, individual performance reviews divert attention from the important task of eliminating the systemic causes, such as inferior technology, behind poor performance.

Another good article pointing out the harm of annual performance reviews. As I have said many times managers need to do better. See chapter 9 of the Leader’s Handbook and previous posts: Don’t Use Performance Appraisals – – Deming and Performance Appraisal – Find the Root Cause Instead of the Person to Blame – Performance Without Appraisal

Toyota Develops Thought-controlled Wheelchair

Toyota has developed a thought-controlled wheelchair (along with Japanese government research institute, RIKEN, and Genesis Research Institute). Honda has also developed a system that allows a person to control a robot through thoughts. Both companies continue to invest in innovation and science and engineering. The story of a bad economy and bad sales for a year or two is what you read in most newspapers. In my opinion the more important story is why Toyota and Honda will be dominant companies 20 years from now. And that story is based on their superior management and focus on long term success instead of short term quarterly results.

Yes Toyota can improve their performance, based on the last few years. Does management understand what they need to do? I think so. Does management understand that the system needs to be improved rather than the numbers on the spreadsheets of various managers have to be made better? I think so. Do I think most companies today, with bad results, understand the difference between bad numbers on spreadsheets that are used to judge various managers and a system that needs to be improved? No.

I do not believe the bad earnings for the last year for Toyota are indicative of a failed system. The results do show a weakness in the Toyota system that allowed them to perform this poorly during this credit crisis. The risk to Toyota’s future is that they become too focused on short term results, mistakenly thinking the problem to be fixed in the bad quarterly results recently. They need to focus on improving the system for the long term. And the recent experience likely shows some areas that need to be improved. But in no way do the fundamental tenants of the management system need to be changed. For many other companies today, changing fundamental aspects of their management is what is needed.

Toyota Posts Loss of $6.9 Billion in Last Quarter

For January-March, Toyota booked a $6.9 billion loss, in line with consensus estimates, and cut its annual dividend nearly 30 percent — the first cut since at least 1994, when it changed its reporting period.
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Toyota President Katsuaki Watanabe was more downbeat, stopping short of predicting when sales would pick up in major markets, or when the company would return to profitability as it remains saddled with excess capacity. “Of course the external environment doesn’t help, but we were lacking in the scope and speed of dealing with various problems and issues, and for that I am sorry,” he told a news conference.

For the year to next March, the maker of the Prius hybrid forecast an operating loss of 850 billion yen, more than double the average forecast in a survey of 20 analysts by Thomson Reuters. It sees an annual net loss of 550 billion yen based on the dollar and euro averaging 95 yen and 125 yen.

The bleak forecasts prompted ratings agency Standard & Poor’s to downgrade Toyota’s long-term debt ratings to AA from AA+, with a negative outlook.
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To return to profit, Toyota must sell more cars or cut costs further, Watanabe said. But he predicted the U.S. market would be around 10 million vehicles industrywide at best this year, down from more than 13 million in 2008.
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Toyota is bleeding overhead costs, with about a third of its global assembly lines working on single shifts. It will slash capital spending by more than a third this year to 830 billion yen as it puts expansion projects on hold, but it said it was not thinking of closing any production lines for good.

In my opinion these negative results are a sign of Toyota’s strength not weakness. The credit crisis and economic downturn has resulted in a poor economic environment. Toyota has managed to sustain the blow and hold firm to their principles and likely will come out of this downturn stronger as a company (mainly re-enforcing the importance of planning for bad economic conditions and not getting too excited about growth potential versus risks of growing too fast) and in a better position compared to their competitors. I continue to be an owner of Toyota stock and happily so.