Category: Interesting Reading

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leanblog.org: Measuring for Improvement

Mark Grabon’s latest post hits the key difference between metrics that help improvement, vs. management-by-measurement that destroys trust and possibly drives unethical behavior. He quotes a U.K. hospital administrator as saying:

“We’re trying to shift from collecting data for judgment to data for improvement.”

I agree with Mark’s assessment: “Brilliant.”

Metrics are a “Check” in Plan-Do-Check-Act.

The purpose is not to determine if people are “doing their jobs” but to assess if the plan is working as predicted.

“As predicted” means that not only is there an objective, but there are discrete actions which everyone agrees will cause the objective to be reached.

Note the words “everyone agrees.”

For that to happen, not only are objectives handed down, but the plan to reach them is discussed. The boss is keenly interested in exactly how his people plan to accomplish their objectives, and he has bought in after he is satisfied they have done thorough work. Think about that for a second. The boss now has his own “skin in the game” on not only the objective, but the way to get there.

There isn’t any space, at this point, for judging people based solely on hitting the numbers, because the boss has already agreed that the plan should work. The question now comes down to how well the team did putting together a plan and gaining consensus, and how well they executed. If the numbers aren’t hit, everybody has to reflect on why the plan didn’t work, what they didn’t foresee, and what they need to do better next time.

Management-by-measurement, on the other hand, is an abdication of leadership. It becomes an adversiaral rather than collaborative exercise and becomes a contest of politics and blame-shifting. This is why, I think, Deming finds the merit system and individual performance bonuses so destructive.

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Design Innovation Example

This post on the Fastcompany.com blog shows a clever desktop manufacturing invention.

But what really got my attention was the development process that starts at 3:40 in the video. It shows the process of developing it. They may not call it “3P” but, by and large, this is what it looks like.

As they develop ideas, they try them out in simulation, learn, improve, try, learn, improve. As the design matures in stages, they are moving forward, step by step, with concepts that are solid. This process is fast, flushes out problems early, while they are cheap to fix, and fun.

Contrast this with what might be created by a traditional process with the assignment of making a “tabletop NC cutter for cardboard.”

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Thinking About Improvement

Although it caters to the I.T. community, Tech Republic sometimes publishes pieces could have that have a wider application. Here are two of them.

In Five ways of thinking that can fell I.T. leaders, author Ilya Bogorad lists some limiting beliefs that can result in the I.T. folks being marginalized in the company. She says:

I often encounter situations where I can’t help but feel that an IT department could be a runaway success within its organization if it weren’t for the beliefs that their leader seems to hold. I want to share with you a small collection of such limiting beliefs. There are five in this list but I could have just as easily added another twenty.

Reading those five things, my feeling is that I could easily substitute the term “Continuous Improvement” where ever “I.T.” appears, and maybe a couple of other very simple edits, and most of the article really strikes home.

Read it, tell me what you think.

That article, in turn, links back to another called Costs and benefits of projects: Looking beyond the dollar sign. Same point. In this world of seemingly having to put up a positive short-term ROI for every idea, we deprive ourselves of so much innovation it isn’t funny. Just what is the ROI of “getting it right every time?” It’s pretty hard to calculate, but I’m pretty sure the opposite is more expensive.

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Toyota’s Dilemma over NUMMI

Toyota says it may shut Fremont’s NUMMI auto plant – San Jose Mercury News

Part of the aftermath of GM’s implosion is that Toyota is left holding the bag on the NUMMI joint venture. The plant primarily built vehicles for GM (the Pontiac Vibe), but was essentially managed by Toyota as a Toyota operation. A lot has been written about GM’s failure to truly learn from this opportunity, but that is now in the past.

What is in the present, and the future, is the fate of the plant itself. Toyota does not need this factory. And if Toyota were being run the way U.S. automakers are, there wouldn’t have been a decision. As soon as GM backed out, the layoff notices would have been issued, and the gates locked. Period. Politically, that probably would have been the best move for Toyota. Let GM make the decision, and reluctantly go along. They had a great opportunity to do that last week when the press was preoccupied with the death of a high-profile celebrity.

But they didn’t do that. Enough time has passed that the plant is now 100% associated with Toyota. (Remember, in our 24/7 news cycle, a week or two is an eternity.)

So now they are stuck. The fate of this plant is Toyota’s and Toyota’s alone.

Here is a thought.

GM is not the only auto manufacturer with something to learn from Toyota, and almost anyone could (if they set about doing it right) learn more than GM ever did. Maybe someone can step up and seize what is, in my mind, a golden opportunity.

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Follow the Learner – Dr. Sami Bahri, DDS

Let me start out with a confession. I am a lousy dental patient. As I read Dr. Bahri’s book, however, I began to realize why I am a lousy dental patient. The thing I dislike about the process is that, unless everything is 100% perfect during a checkup, I invariably have to make another appointment, sometimes more than one, to get the follow-up work complete. In other words, I am exactly the kind of patient that Dr. Bahri is targeting with his practice.

This book has three parts, each a small book in itself.

In Part 1, Dr. Bahri tells the story of his experience taking his clinic from yet-another-dentist’s-office to an efficient operation with 30%+ more capacity than similar offices, and single-visit throughput for most of his patients.

His initial insight is captured on page 7 where he tells the story of a patient who was genuinely short on time.

We found that her [college student] daughter needed seven onlays and two composite fillings. Because she was short on time, we had to finish the entire treatment in one visit. It took us from 9:00 am to 1:00pm, a four hour visit!

I wondered: Why couldn’t we do this for all of our patients? Weren’t most of our patients short on time?

And, with the realization that this kind of performance is possible, if wasteful, Dr. Bahri starts down the path of figuring how how to do it without the waste.

Another key mental shift was the realization that the patient has more than clinical and medical needs. The patient is buying a service, just like any other, and providing for the non-medical needs are just as important. This means respecting the patient’s time, and delivering the care in a way that aligns with the way the patient wants it.

It was no longer about optimizing the practice, but about optimizing the patient’s experience. Even if the patient didn’t want or need the treatment in one day (some might prefer it broken up over a number of shorter visits), by developing the capability to do so, Dr. Bahri created a flexible system that can respond to the patient’s wishes, no matter what they are.

A little further on, Dr. Bahri shares another crucial insight:

I would like to say that I had a well-designed master plan to reach one-patient flow, but I didn’t. Instead, the story of our lean transformation felt much more like a long trek through a mountain range. Our learning journey was not a straight line.

Steven Spear is pretty clear on this point. He repeatedly points out that the “perfect process” cannot be designed. Rather, it must be discovered, and this is exactly Dr. Bahri’s experience. His journey of discovery dealt with one problem at a time, as it was encountered, rather than trying to solve all of the problems at once. Flow was his “True North” but there wasn’t a GPS. Rather, he recounts a series of obstacles that revealed themselves only as the previous one had been cleared.

But more than simply describing what he did, Dr. Bahri describes what he learned along the way.

The learning component is what distinguishes Dr. Bahri’s journey from most technical-only implementations. He personally, and more importantly, publically set out to learn how to understand the problems, experiment with countermeasures, and apply them. In doing so, I believe Dr. Bahri exhibited that rare commodity in leadership today – humility. Rather than being the guy with the answers, he was the one with the questions. He taught by being a student.

The second section is only a few pages, but it directly addresses the leadership issues. One of the key points is his shift from directive to supportive leadership.

He describes another crucial insight on page 41:

What brings us together and makes us most efficient is clearly seeing the current problems that stop us from achieving and maintaining one patient flow. Once problems are clearly communicated among staff, the desire to eliminate them incites people to collectively take corrective action.

A key point here is that the exact mechanism for doing this is not so important as making sure there is one. One thing that I see common in every organization that has implemented true continuous improvement is some means of identifying and collectively managing problems as barriers to flow. This is much more than just hoping people will “see waste and work to eliminate it.” The process, like any other collective process, must be led and managed.

In the third section, Dr. Bahri breaks down the principles he discovered along the way, organized around the themes of purpose, process and people. In talking about taking a systems view, he also cites many references that other, more narrow minded people, might believe are contradictory, when in fact, they are not.

In particular, he describes Peter Senge’s reference to “The Beer Game” in The Fifth Discipline, and relates it back to his dental practice.

To improve the decision-making process it becomes critical to eliminate delays in the feedback processes that occur.

How does this apply to dentistry? Simple. If we find a cavity while examining a mouth, we have the information about that tooth fresh in our mind. Therefore, we can treat the tooth with minimal risk of making mistakes. On the contrary, if we delay the treatment for a few months, we might forget some of the details, even after writing good notes in the patient’s chart.

If this happens in a dental office of a dozen people, imagine a large hospital or other complex care delivery environment. Each time a patient’s care is transferred from one stage to another, some information is invariably lost. Other information becomes obsolete. The next stage must either re-acquire this information through redundant tests and examination, or (worse) act without it, sometimes at risk to the patient. Either option introduces delays, expense, and chaos into the system.

So – Perhaps deliberately, perhaps by happenstance, the result of all of this was that Dr. Bahri created a learning organization – one in which people continuously test and challenge their assumptions, and actively seek out more understanding of the system itself.

There are two things I really like about this book.

First, Dr. Bahri’s story begins with the customer – his patients – and he challenges himself, and his staff, to deliver all of the required procedures, planned or discovered, during a single visit. This idea turns the whole concept of tightly scheduling appointments centered on the care providers on its ear, and focuses instead on the care receivers. In short, he wants to deliver continuous flow of care to the patient, without interruption, until it is complete.

From that simple decision – to deliver a continuous flow of care to the patient, rather than an hour here and an hour there, with days of waiting in between – grows an organizational culture focused on driving toward this ideal condition.

The second is that he emphasizes the role of the leader as change agent. While it is theoretically possible to “outsource” or delegate the role of change agent in your organization, if that is going to work, the change agent has to be seen as a a true agent, acting explicitly on behalf of the leader. Few managers are willing to back up their so-called “change agents” to that degree. This leaves the organization in an ambiguous state where “change agent” is expected to convince the people (and the leader) that the proposed changes are “good.” When the leader is the change agent, this ambiguity is removed, and things move forward.

Over the years, I have seen a few spectacular successes. The one thing they all have in common is a leader who is personally dedicated to his or her own learning, and is willing to learn publically – rather than being afraid of appearing ignorant. Dr. Sami Bahri, DDS is one of those leaders, and this book goes far beyond dentistry or medical topics.

In the end – is this book perfect? No, I would prefer increased emphasis and a bit sharper contrast in some areas. But any serious practitioner, in any field would do well to read this story. As the title suggests, it is much less about implementing in a medical or dental practice than it is about leadership in any change effort.

Ironically, some in manufacturing are likely to dismiss it as only being appropriate for a service delivery environment.

Follow-up: Mark Graban has a video podcast interview of Dr Bahri on his site.

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Jim Collins: How the Mighty Fall – Business Week

I am a big fan of Jim Collins. His book Good to Great outlines attributes that I have seen in every successful organizational transformation.

Now he has a new book out. I haven’t read it yet, so I am not going to offer a review, just tell you about it. But the title and premise is intriguing:
How The Mighty Fall: And Why Some Companies Never Give In

There is a great article and excerpt of the book on Business Week online, including  a video of Jim Collins describing the stages (preceded by a short advertisement).

In short, Collins’ research shows that a great company can fall, and when it happens, there are five stages of decline. According to Collins, Stages One through Three are invisible from outside. The company looks great, but it is rotting from within. It is only at Stage Four that things visibly go south, and they do so very quickly. But there is also good news: The company can recover and return to greatness from any of the stages one through four, but not five.

While this whole story is fascinating, it is the nature of Stage Four that brings things into pretty sharp focus for me.

The stages are:

Stage 1: The Hubris of Success. Things are going great, and the company acquires a sense of entitlement for that success. “We deserve this success because we are so good!” In Collins’ words:

When the rhetoric of success (“We’re successful because we do these specific things”) replaces penetrating understanding and insight (“We’re successful because we understand why we do these specific things and under what conditions they would no longer work”), decline will very likely follow.

I think this idea of “penetrating understanding and insight” is what characterizes the idealized Toyota Production System. It is also seen in every example that Steven Spear covers in Chasing the Rabbit.

When an organization shifts away from questioning its own success as thoroughly as its failures, and begins to assume that its continued success is simply a matter of continuing to do what they have been doing, the seeds of decline are sown.

This ship is unsinkable.

Stage 2: Undisciplined Pursuit of More.

Companies in Stage 2 stray from the disciplined creativity that led them to greatness in the first place, making undisciplined leaps into areas where they cannot be great or growing faster than they can achieve with excellence—or both.

This one really struck me. Is this the what Toyota went through in the last 5-7 years in their pursuit of #1? Clearly they overreached, even they say so. Even as early as 2003 they were seeing eroding of the TPS discipline in their North American and European plants. They shored that up, and continued their aggressive expansion of production capacity, got into big trucks, and in general seemed to bypass their traditional patient-and-relentless growth strategy.

Other industries suffered this as well. The last few years saw unprecedented (and it turned out, artificially generated) growth in sales across sectors. As one of my friends put it “When times are this good, everybody’s a genius.” Put another way, when there is more demand than supply, even a “supplier of last resort” gets great business, and it is easy to fall into the trap of thinking it is because “our products are great, and customers like us.” It is possible to carry that belief in the face of overwhelming evidence to the contrary – like customers telling you to your face that they bought your stuff because they couldn’t get it from your competitors.

Inventories start to grow, quickly, as nobody wants to miss a sale; factories are expanded, quickly, for the same reason. There is almost a fear of failure here, but it is fear of failure to get more rather than failure to succeed. If success is taken for granted (see Stage One), this one follows pretty directly.

We are going to set an Atlantic crossing speed record.

Here is a question: Who didn’t experience this to some degree over the last 5 years?

Things get interesting next.

Stage 3: Denial of Risk and Peril. There are warning signs of over-reaching, that things are not going to go this way forever. But what struck me more was the cultural aspect: Shutting out the truth.

In Stage 3, leaders discount negative data, amplify positive data, and put a positive spin on ambiguous data. Those in power start to blame external factors for setbacks rather than accept responsibility. The vigorous, fact-based dialogue that characterizes high-performance teams dwindles or disappears altogether.

When leaders start suppressing dissenting views, when they equate disagreement with disrespect or unhealthy conflict, they start insulating themselves in a cocoon of denial.

If the organization is pre-disposed to avoid conflict to begin with, then this stage is really easy to slide into. Vigorous debate is part of sound decision making. When that stops, or is never allowed to surface in the first place, the organization is self-centered and vulnerable.

When leaders start attributing the warning signs to anomalous, one-time, temporary factors – and believing they are exercising that penetrating understanding and insight when, in reality, the “analysis” is no more than the Highest Paid Person’s Opinion they have shifted from rationality to internal belief-based decision making. (also called “wishcraft.”)

Reports of ice ahead.

Stage 4: Grasping for Salvation.

The cumulative peril and/or risks gone bad of Stage 3 assert themselves, throwing the enterprise into a sharp decline visible to all. The critical question is: How does its leadership respond? By lurching for a quick salvation or by getting back to the disciplines that brought about greatness in the first place?

So things have gone to hell in a handcart, and the leadership starts looking around for how to get out of the spin. They have ignored all of the warning signs up to this point, but now they are undeniably in trouble. What to do?

As I said, this is where it gets really interesting from a personal / professional level.

There is no doubt that, at this moment, the proverbial “burning platform” exists. There is clearly a sense of urgency… Pick your clichés from “change management” literature here.

“Hey – I just read this book about lean. Let’s bring in this hot-shot consultant to lean us out.” And so it begins. The Search for the Silver Bullet – the magic that will fix everything. And it doesn’t have to be “lean.” It might be x-Sigma (put your favorite buzzword in place of the ‘x’). Maybe everybody reads The Goal and starts looking for constraints. Or the leaders leap from “program” to “program” looking for the solution. While each “initiative” is kicked off with great deliberate fanfare, in reality the leaders are panicing.

They fail to see that leaders atop companies in the late stages of decline need to get back to a calm, clear-headed, and focused approach. If you want to reverse decline, be rigorous about what not to do.

Here is my take on this. These leaders who leap from “solution” to “solution” are still in hubris and denial. They are still looking outside of themselves for the problem, and the solution.

My last post, How the Sensei Teaches, describes leaders who teach by being students. This requires humility, something totally incompatible with hubris. If they want to bring in that hot-shot consultant, they need to tell her “We really need help up here, please teach us” rather than “Go teach our people how to be lean.” They need that consultant to be a true sensei, not just a technician.

Oh – what is Stage Five? Collins calls it Capitulation to Irrelevance or Death.

My words are “The boat sinks.”

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How The Sensei Teaches

In a previous post, I talked about Steven Spear’s observation about how a sensei saw a process and the problems. Jeffery Liker, Mike Hoseus and David Meier have done a good job capturing how a sensei teaches and summed it up in a diagram in the book Toyota Culture. (for those of you following at home, the diagram is figure 18.9 on page 541).

I want to dissect this model a bit and share some of the thoughts I had.

This is the whole diagram:

How a sensei teaches

This diagram strikes me in a couple of ways.

Let’s zoom in to the left hand side.

sensei-do-loop1

I’m calling the part I’ve highlighted in red the “sensei do-it-loop.” That is, the sensei says “Do this,” the students do it, then the sensei says “Now, do this.” Repeat.

While this first loop is the starting point, all too often, it is also the ending point.

And in this loop, process improvement actually happens, everybody applauds at the Friday report-out. The participants may even prepare a summary of key learning points. And perhaps, as follow up, they will apply the same tools in a similar situation. (As much as I hope for this outcome, though, it doesn’t happen as often as I would like.)

A lot of consulting engagements go on this way for many years. Some go decades. I am sure processes improve, and I am equally sure it is very lucrative for those consultants. But even if they are extraordinarily skilled at seeing improvement opportunities and pointing them out, these consultants are not sensei in the meaning of this diagram. That distinction is made clear in the next section.

This is where the learning happens.

Sensei Learning

I have highlighted the learning loop in red.

The sensei is primarily interested in developing people so that they can see the opportunities and improve the processes themselves. He wants to move them along the continuum from “Do” to “Think” so that they understand, not only this process, but learn how to think about processes in general. When the sensei asks the questions, he is forcing people to articulate their understanding to him. He is really saying “teach me.” In this way he pushes people to deepen their own understanding from “think it through” to “understand it well enough to explain to someone else.”

Think about Taiichi Ohno’s famous “chalk circle.” The “DO THIS” was “stand here and watch the process.” He had seen some problem, and wanted the (hapless) manager to learn to see it as well. Ohno didn’t point it out, he just directed their eyes. His “test” was “What do you see?,” essentially repeated until the student “got it.”

The second leap here is from “Think” to “Self Learning.” At this point, people have learned to ask the questions of themselves, and of each other.  So when he asks his questions, the sensei is not merely interested in the answers as a CHECK of learning, he is also teaching people the questions.

These questions are also a form of “reflection.” They are a CHECK of what was planned vs. what was done; and what was intended vs. what was accomplished. The ACT in this case is to think through the process of improvement itself, not simply what was improved.

Until people learn to do this, “Self Learning” does not occur, and the team is forever dependent on external resources (the sensei, consultants) to push themselves.

But the sensei is not through. Once people have a sense of self-learning, the next level is capability to teach others. “All leaders as teachers.”

Learning to Teaching

Someone, I don’t know who, once said that teaching is the best learning. I can certainly say that my own experiences back this up. My greatest ah-ha moments have come when I was trying to explain a concept, not when it was being explained to me.

I would contend, therefore, that a true sensei is not so much one who has mastered the subject, but rather one who has mastered the role of the eternal student. It is mastery in learning that sets apart the very best in a field.

Thus the sensei‘s work is not done until he has imparted this skill to the organization.

As the leaders challenge their people to thoroughly understand the process, the problems, to explore the solutions, so do the leaders challenge themselves to understand as well.

They test their people’s knowledge by asking questions. They test the process knowledge of their people by expecting their people to teach them, the leaders, about the process. Thus, by making people teach, they drive their people to learn in ways they never would have otherwise. The leader teaches by being the student. The student learns by teaching. And the depth of skill and knowledge in the entire organization grows quickly, and without bound.

So Here Is Your Question:

If your organization is typical of most who are treating “lean” as something to “implement” you have the following:

You have a cadre of technical specialists. Their job, primarily, is to seek out opportunities for kaizen, assemble the team of people, teach them the mechanics, then guide them through making process improvements that hit the targets. This is often done over the course of 5 days, but there are variations on this. The key point is that the staff specialists are delegated the job of evangalizing “lean” and teaching it to the people on the shop floor.

Again, if it is typical, there is some kind of reporting structure up to management. How many kaizens have you run? What results have you delivered? How many people have been trained? Managers show their commitment and support by participating in these events periodically, by attending the report-outs, and by paying attention to these reports and follow-up of action items.

Now take what you have just read, and ask yourselves – “Are we getting beyond the first loop, or are we forever just implementing what is in the books?”

How are you reinforcing the learning?

Who is responsible to learn by teaching?

I’ll share a secret with you about a recent post. When Paul and I took Earl through his own warehouse that Friday night, neither of us had been in there before. While I can’t speak for Paul, everything I knew about warehouse operations and crossdocks, I learned from Earl. I didn’t teach him anything that night. Paul and I did, however, push him to teach us, and in doing so, he learned a great deal.

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Russia’s Factories Gear Up for Efficiency

This article in Business Week offers a glimpse into some of the opportunities, and challenges, facing Russian industry, both in dealing with the global recession, and their tremendous work to get out from under the legacy of a state run economy.

Two things really jump out at me. First, this particular CEO (other than the fact that he is 26 years old(!) is taking a proactive approach to the recession. He is taking responsibility for dealing with the problems, not simply playing victim and blaming the economy.

…Andrey Gartung, the 26-year-old CEO, believes the global economic crisis offers an opportunity to boost productivity. This year he is adding new product lines, ordering every department to trim costs by 15%, and asking workers to ferret out waste wherever they find it—with prizes of up to $300 for the best ideas. “The companies that will survive are the ones that are efficient,” Gartung says.

With that kind of attitude, I think Mr. Gartung will go far.

But the thing that really jumped out was the incredible magnitude of the opportunity.

Despite Russia’s 7%-plus economic growth recently, much of its industry is little changed from Soviet times. Factory productivity is just 16% of the U.S. level, according to Strategy Partners, a Moscow management consultancy.

That means, friends, that they have an 84% upside. If they can harness that, think about what it means in terms of competition.

Russia, of course, is not without its problems – political, social, economic. The little tidbit that the CEO of this factory is the owner’s son comes out about 2/3 of the way down, as does the fact that the owner is a member of the Russian Parliament. Though I am sure that Mr. Gartung is sharp and competent, in general, this kind of thinking is not going to help Russian industry as a whole.

But rather than focus on them, take a look in the mirror. What is your productivity upside? What is your attitude about these economic times? Do you honestly believe your operation is as good as it can get? Or are you satisfied with 15 or 20% of what it could be?

Consider Toyota’s response to their first quarterly loss in decades – essentially saying treating the loss as evidence of a problem.

Remember that old definition of insanity: “Continuously doing the same thing, and expecting a different outcome.” If you don’t like the results you are getting, then dig in and try something else.

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Amazon.com Gets It

Not many people know that Amazon.com is one of the “places to see” if you are looking for companies practicing the TPS. The fact that their sales and profits are hitting records as most others are scratching and clawing to stay in business is telling.

This recent post by Kevin Kelleher on Gigacom really sums the whole thing up with one sentence quoted from Jeff Bezos’ letter to shareholders:

At a fulfillment center recently, one of our Kaizen experts asked me, “I’m in favor of a clean fulfillment center, but why are you cleaning? Why don’t you eliminate the source of dirt?” I felt like the Karate Kid.

If you have to keep cleaning up a mess, find out where the dirt is coming from.

But the philosophy goes deeper.

If an assembly Team Member is continuously spending time cleaning up threaded holes, go find out how the debris is getting in there (or find a way to keep it out). Go and see.

If you keep losing market share, find out why customers prefer your competitors products. (And don’t sit around a mahogany table talking about it, GO AND SEE.)

Other posts on the same site relate to eBay’s troubles trying to compete with Amazon. The difference, I think, is summed up in a quote from an Amazon executive related to me by someone who was a fly on the wall in one of their meetings:

“At an eBay sellers meeting last quarter, my counterpart was booed off the stage. That is not going to happen here.”

Kaizen is less about the tools than it is an obsessive curiousity about what the next problem is between you and perfection.

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Kaizen Express – and the Lean Enterprise Institute

The Lean Enterprise Institute has recently published Kaizen Express, an overview of the classic characteristics of “lean manufacturing” and, by implication, the Toyota Production System. As I set out to review the book, I found myself heading in two directions.

One is the content of the book itself.

Over the years, there have been a slew of books with similar tables of contents that describe the various mechanics and mechanisms observed in the Toyota Production System.

The first really comprehensive reference in English was Productivity Press’s translation of Hirano’s JIT Implementation Manual. (Originally a two volume set priced at $900, it appears it is about to be published in a second edition for around $200. I have not seen the second edition.) Back in the early and mid 1980’s, Hirano was about the only comprehensive reference out there. At Boeing we had internal-use reproduction rights, and many of us poured over those volumes, parsing every word.

Kiyoshi Suzuki’s New Manufacturing Challenge (1987) was the book we gave out to all of our suppliers. It, too, provides a pretty good overview of most of the tools and techniques. It is a good basic reference, and I still believe it really takes about three years for a practitioner to outgrow it.

At a more technical level, we have had Toyota Production System: An Integrated Approach to Just-In-Time by Yusuhiro Monden. This book goes into more depth from a system engineering standpoint, and focuses mostly on “Toyota’s production system” vs. a more generic approach.

These three titles are by no means the only ones. A couple of feet of my own bookshelf is occupied with books covering the same basic topics. I only mention these three only because they have been my workhorse references, especially in the days when I was still putting together my own mental models.

Kaizen Express is well at home with this family. It is a solid overview of the tools and techniques that generally characterize “lean manufacturing” and I can quibble with nothing that is in the book.

The presentation itself harks back to the days when all of the decent references came out of Japan. It is a bilingual book, written in Japanese language and graphic style with English translation along side.

On a sidebar note: As a practitioner, dealing with shop floor people and their sensibilities and values, I would rather use a reference that didn’t come across as so foreign. While I fully appreciate that the Japanese vocabulary is a solidly embedded part of Toyota’s culture, that is not the case elsewhere, and some Toyota-trained practitioners would do well to keep that in mind. The concepts are difficult enough to get across without having to overcome language resistance. Add to that the unfortunate truth that many countries, especially in Asia, still have vivid cultural memories of a far more malevolent Japan, and the resistance just increases. I would not give a copy of this book out in China or Korea, for example. There are others which serve the same purpose without bringing up unresolved issues. Memories and emotions run much longer and deeper in Asia than they do in the West.

All of those reservations aside, this book is a welcome review of familiar material.

Now, the second part. I want to go beyond the book itself, and look at its context. This becomes not so much a review of the book, but one person’s opinion (mine, to be sure) of the state of our communities understanding of the Toyota Production System itself.

The TPS is somewhat unique among all of the various “management systems” in the popular business press today in that it grew organically rather than being explicitly designed. Thus, rather than consult standard documents to learn about it, knowledge comes from research.

In the early days, through the late 1980’s, the topic of “JIT” or “Japanese manufacturing techniques” was a quiet, esoteric backwater of consultants and a few committed practitioners. We knew about Harley Davidson, and some of the other early adopters. Danaher was just getting started, and some of the household name early leaders were starting to gain meaningful experience and reputations. The knowledge base came from practitioners trying to make it work, rather than professional academics who are in the business of developing and testing rigorous theory.

In late 1990, everything changed. The Machine That Changed the World by Womack, Jones and Roos published the results of good, solid research from MIT and became a hot seller. It broke out of the practitioner’s technical corral, got the attention of mainline executives and managers, and introduced the buzzwords “lean production” (which later morphed into “lean manufacturing”) into the lexicon of everyday business.

This was followed by Lean Thinking which profiled a number of these companies and put Shingijutsu on everyone’s radar.

The Lean Enterprise Institute was founded shortly thereafter, and in the late 1990’s published Learning to See and introduced everyone to value stream mapping. This was the first of a series of workbooks designed to take the practitioner through the mechanics of implementing various aspects of the basic elements of modern manufacturing techniques.

These workbooks were something new. Rather than the encyclopedic approach of a single book devoting short chapters to descriptions of the various tools, these workbooks went into much more depth on a single topic, such as materials distribution, creating a work cell, the basics of heijunka or mentoring someone through solving a problem.

In the background of all of this, “lean manufacturing” became the hot topic. Writers, consultants, managers were all talking about how to “get lean” and to “lean out” a business. Hundreds of books were published on the topic, a few of them good, many of them re-hashing old stuff in new ways, a few just using the buzzwords to sell bad information.

This explosion resulted in a lot of noise pollution. What had started as peer-reviewed academic research of the automobile industry turned into the “lean industry” – a crowded, bustling bazaar with everyone hawking and touting their “solutions.” This, by the way, included a mountain of junk academic research.

But there was also some really exceptional academic research, especially out of Harvard. While everyone was busy implementing the tools of lean – the things in the tables of contents of all of those books, the success rate was a far cry from the promise. I have experienced this myself a couple of times. But Steven Spear made it the topic of his 1999 groundbreaking PhD thesis at Harvard. Let me quote, and offer my interpretation, of a few key sentences from the abstract of his dissertation.

Researchers have established that Toyota enjoys advantages in cost, quality, lead-time, and flexibility when compared to its competitors in automotive assembly.

There is no doubt here. It’s why we are all reading this stuff in the first place! And while there was considerable anecdotal evidence before that, The Machine That Changed the World offered up a solid base of good research to confirm what everybody was thinking.

Differences in generating value have been attributed to differences between the Toyota Production System (“TPS”) and alternative management systems. Distinctive tools and practices have been associated with TPS.

Those “tools and practices” are what are covered in the classic books I cited earlier. They are also what is covered in Kaizen Express if not by industry in general, certainly by the community of experts.

However, evidence suggests that merely copying these [tools and practices] does not generate the performance advantages enjoyed by Toyota. This has prompted several questions … [including] … why is it so difficult to imitate?

So we (the community of experts) were happily out the there doing the stuff that was in the books, teaching the basics, trying to implement them, and finding it generally difficult to get a lot of traction once the initial novelty wears off.

Meanwhile, the noisy bazaar continued to churn out more and more “solutions” aimed at the “gaps in lean manufacturing.”

“Lean looks at waste, but doesn’t address variation…” so “Sigma” was spliced in. Yet Toyota obsesses on stability and eliminating variation at levels we cannot even fathom.

“We need someone to implement quality in our lean company.” Hello? How can you leave out quality? Yet in our efforts to implement flow and reduce inventory, we did it all of the time!

We try to bring kaizen into administrative and creative process flows – well enough, but upon finding that the “tools and techniques” need to be adjusted somewhat, people draw the conclusion that there is more to it.

All of these things, over the last ten or fifteen years seemed to make things very complex indeed.

So we go back to the basics.

I agree with the principle. But we need to discuss exactly what the basics are.

The second paragraph of Steven Spear’s abstract is pretty clear:

… the tools and practices that have received attention are not fundamental to TPS.

(emphasis added)

Then he brings up things that the rest of us never talk about:

… the … Rules-In-Use promote distinctive organizational features. These are nested, modular [organizational] structure; frequent, finely grained self-diagnostics; and frequent, structured, directed problem solving that is the primary mechanism for training and process improvement.

(emphasis added) (For explanation of what Spear means by “Rules-In-Use” read the dissertation itself, or Decoding the DNA of the Toyota Production System, which is the HBR summary of his conclusions. Personally, I “got it” a lot better from the dissertation, but then he has 465 pages to make his points vs. 10 pages in the article.)

What has all of this got to do with the little green book, Kaizen Express?

I think it is a great book, for 1991.

But this is 2009. So while Kaizen Express is a welcome refresher of the mechanics, those mechanics are, according to the current standing theory, built upon a foundation of something that Kaizen Express, and for that matter, the LEI has not, to date, addressed. What is missing, in my view, is how the tools and practices outlined in Kaizen Express and its predecessors actually drive daily continuous improvement that engages every team member in the process.

Anyone out there is perfectly welcome to refute Spear’s research and make a compelling case that “the fundamentals” are, indeed, the things addressed in Kaizen Express. But to do so means bringing credible peer-reviewed, published research to the table. It means building a compelling case of documented observations that contradict Spear’s theory. Anything else is simply conjecture.

My challenge to the Lean Enterprise Institute: Your organization is unique. It emerged from the world of academia with very solid credentials, with a great mission to carry this message to the non-academic world. Because of its academic origins, LEI has a real opportunity to be the bridge between the cutting-edge understanding coming out of these top-flight research institutions and translate it into practical things the rest of us can put to use. Extend your charter to taking PhD words like “nested modular structure” and “frequent finely grained self-diagnostics” and giving the daily practitioners some workbooks that lay out how to do it.

Kaizen Express is a great little book.

LEI can do better, though, than to re-publish material that has been out there since 1988.