Toyota Kata at lean.org

Mike Rother sent out an email today pointing out that the Lean Enterprise Institute’s web site now has a Toyota Kata page.

I believe this is a significant event for the lean community as a whole, as well as for the LEI.

As many of my regular readers know, I have maintained the view that the LEI had not kept up with the current state of knowledge about what makes “lean” work.

Back to Basics

An Open Letter to John Shook

When the LEI published Kaizen Express in 2009, I wrote a review that addressed this topic. The review had two parts. One part about the book itself, and the other about the context of the community’s knowledge at the time.

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. [bolding added for emphasis here]

When Toyota Kata was published, I believe it closed that gap for the community at large. But I felt a bit of irony that while Mike Rother had co-authored the LEI’s flagship workbook Learning to See, Toyota Kata was not only outside the LEI’s community at the time, it was hardly acknowledged to exist.

The purpose of this post is to acknowledge that a significant step has been taken: For the first time in many years, the LEI is embracing material that they did not originally publish.

From my perspective, this looks like a turning point away from the path of irrelevance.

Failure as Success

A great insight from a client today.

The target condition at this point is simply to establish some degree of transparency of the current condition on a status board without having to resort to probing questions to elicit what is working, and what is not.

The observation was:

“We’ll know we are succeeding when we see a failure.”

In other words, “no problem is a big problem” but I think this says it just as well.

Make a Rule / Keep a Rule

I was driving home today and saw a construction sign on the sidewalk. It read: “Sidewalk Closed, Use Other Side.” Ahead was a section of the sidewalk which was, indeed, closed off and impassible.

By the time a pedestrian encounters this sign, he is well into the middle of a long block.

The sign is at least implying that the pedestrian should cross the street in the middle of the block to get around the construction. The alternatives are:

  • Ignore the sign, and walk on the street around the torn up sidewalk.
  • Backtrack to a legal crosswalk, and cross the street where it is legal to do so.

This situation is actually fairly common in a lot of companies. There is a rule “Don’t cross the street in the middle of the block.” Then there is an expectation that is incompatible with following the rule.

  • “Be careful, but hurry.”
  • “Stop and fix problems, but don’t lose production.”
  • Stop for quality, but make the numbers.”
  • Get 90 minutes of work done in an hour.

The team member has the same alternatives as above – ignore the expectation, or ignore the rule.

This is a slightly higher level than Hirano’s observation that “the words ‘just for now’ are the origin of all waste.” Here we are putting the team member in an untenable situation because there is no action available that is clearly OK.

Take a look at the rules you have. Take a look at the actual behaviors. Remember that what people actually do is generally what they sincerely believe you expect of them.

If it is impossible to follow a rule, consider why the rule exists.

The words “Do the best you can.” are a warning that you are in this kind of situation.

Changing Routines

This video by Charles Duhigg is promoting his book The Power of Habit . I haven’t read the book but there is a lot of study that draws the same basic model.

A habit is based on an urge to do something that triggers a reward (dopamine shot) in your brain. Every time it happens, the connection between the action and the reward gets stronger.

The urge itself is usually triggered by some outside condition or stimulus.

Take a look at the video, and then the flowchart beneath it (click on the flowchart for the full size version), then we will discuss what this has to do with lean thinking.

How to Break Habits

Here is the flowchart – click for the full size version:

 

Why this is important to lean practitioners:

When we talk about “change” we are talking about replacing one set of habitual responses with a different set of responses. Thus, it is important to understand that simply applying willpower is not enough for anyone (no matter how well intentioned) to change their fundamental behaviors.

As you may recall, I am a big fan of the book Switch by Chip and Dan Heath. One of their key points is “Build Habits” and they discuss linking the desired response to a specific trigger.

What we have to keep in mind is that the old responses also have triggers, and many of those triggers are subtle and below the level of awareness.

Duhigg’s model is replacing one habit that does not get the results you want with a different habit that does get the results you want.

The less dramatic this change, the better. That is why it is critical to “find the bright spots” (also from Switch), and even if they are not working perfectly, to structure your future state behaviors around them. For that matter, if you can find even a hint of the behavior you want, it is far easier to shape existing actions than to try to tell people they are “doing it wrong” and getting them to pick up something else.

One of the elements of Deming’s model of “profound knowledge” is “knowledge of psychology.” Take a look at these tools and see if they help you be a more effective change agent.

Learning vs Teaching

Coincidently my experience this week ties in nicely to the last post.

I have a couple of teams working to develop pull systems through their respective work areas.

The conventional approach (I suppose) is a lot of PowerPoint about kanban, some exercises, developing a future state value stream map, then devising an implementation plan.

An alternative approach is to have a small group of experts design the system.

Most of the time this results in a fairly arduous process of wringing out the issues once the system goes live. If the team isn’t prepared for that, it is likely the system will come apart as people bypass it out of necessity to get the work done.

What I am watching this week is more organic.

First, we covered a few fundamentals about flow and pull signals in a simple demonstration of “build and push” vs. one-piece-flow with a visual limiter on work-in-process inventory. They saw the throughput, productivity, stability, visibility all increase while lead time dropped by an order of magnitude. That took about an hour.

The team then set up a tabletop simulation of their existing work flow, and exercised it a few times to confirm that it is a fair representation of the way things actually work today. In doing so, they gain more understanding of the current condition because they have to replicate it.

They then set out to make their far more complex real-world situation work more like what they saw in the demonstration. To help them get started, they were given some suggestions about a few things to try, and some basic principles and rules.

Some of that advice included restricting changes to a single factor at a time, and predicting what would happen, then trying it. If you find yourself speculating, or discussing alternative speculations, try it and see.

Two days into it, the teams have full-blown multi-loop kanban working, and are devising experiments to learn how the system responds to things like machines going down, unpredicted shifts in product mix, and other things they normally need to respond to.

They are exploring not only the mechanics and the rules, but the dynamics of the process in operation. They are learning what “normal” looks like in the face of abnormal conditions. They are testing the boundaries – where and when does it break, and what does “broken” look like vs. something that will recover on its own.

They are figuring out how to make it more robust, without making it cumbersome or too complicated.

They are gaining confidence and a deep understanding by iterating through ever more complex scenarios.

The people doing this are the ones who will be working IN the system in the future. We are seeing who emerges as thought leaders.

What they have right now – mid week – is a crystal clear view of their target condition, and they are very confident that they can make it work in their real world. Are there unknown issues? Sure. There always are. Translating this to the real world will involve more cycles of iteration. Only now they know exactly how to do those iterations because they have practiced dozens of times already.

This is actually less about kanban than it is about learning how to gain knowledge about something previously unknown.

It is pretty cool to watch, and a lot more fun (for everyone) than just implementing a process designed by someone else. Even the skeptics get drawn in when people are working hands-on to try to make something work.

Oh – and I’m really glad this process works because that saves me from having to know the answers.

Learning vs. Knowing (or not)

PC once again left a provocative post in the Lean Thinker’s Community, and gave us a link to this Tim Harford TED talk that drives home the point that learning and improvement is more about rapidly discovering things that don’t work than about designing things that do.

Trial and Error

Tom Wujec makes the same point in the Marshmallow Challenge. In that video, Tom talks about how 5 year old kids out perform most adult groups in a problem solving / learning game. While the adults engage in a single cycle of “know-build-fail” the kids engage in multiple cycles of “try-fail-learn-try again.” In the improvement world, we call this process PDCA.

Harford’s key point is that learning only happens through a process of trial of large numbers of ideas, followed by the selection and further trials on the best ones.

Hmmm… that sounds a lot like the 3P process of “Seven Ideas” as well as “Set Based Design.”

Don’t Outrun Your Headlights

I am finding good resonance with my management training sessions. Rather than doing an overview of the “tools of lean” I go in depth into the fundamental things that the leaders need to

  1. Learn to do, and do.
  2. Ensure are done.

in order to build this on a solid foundation.

But “resonance” seems to mean “in a hurry to get to the good stuff” and a temptation to skip some of the foundational work.

We need to start off in learning mode, working to build a foundation of stability and consistent execution.

Without consistent execution, all of the great plans are nothing but ideas. The first hoshin to work on is establishing a stable process of daily improvement. Once you have that, your improvement management process becomes an exercise in priorities and direction setting.

Without consistent execution, your improvement plan is application of brute force against the momentum of business as usual.

That isn’t “resistance to change” at work. It is “we barely have time to survive down here, so we’ll get to your improvements when we have time.”

You have to create that headroom first. Honestly, it is mostly about instilling confidence, both in themselves, and in you. They have to believe they can carry out the plan. They have to trust you to be consistent with your purpose and not cut their legs out by asking them to change course in the middle.

All of this takes practice. With the right kind of practice comes teambuilding. (That shouldn’t be a separate activity.)

Step by step. You can move quickly, but only if you embrace “smooth is fast.”

Toyota Kata Seminar, Day3

The key points addressed today (Day 3) at the Toyota Kata seminar were:

  • The PDCA cycle – small experiments that the “learner” develops to advance toward the target condition.
  • The coaching cycle (or kata) – an introduction to the role of the coach, and how coaching is structured in practice.
  • A fairly brief discussion on the current experience with the implementation path for an organization.

Roles

Even though the book and course material are quite explicit, a couple of people in the room weren’t readily grasping this until today.

Who Is Being Coached?

In the Kata model, the first level of “learner” is the first line leader who has direct responsibility for the process, and the people who work in it.

On a production floor, this would be the area supervisor.

The core material of the course is how to plan and execute continuous improvement in your work group. This is called the “Improvement Kata”

The “Coaching Kata” is covered and demonstrated (quite well), but it is not the prime topic this week.

Who is doing the coaching?

The coach is nominally the direct supervisor of the person being coached.

To learn how to coach, one must first learn the game. Thus, no matter your role in the organization chart, you come to this seminar gain awareness of the role of your first line leaders.

Then you go home and practice the role some more. Once you have lived in their shoes, then you can turn around and expect them to do the same.

What is absolutely critical to understand here is that this is not a “kaizen event” model. This is a daily improvement model. The coaching cycle happens for a few minutes every day between front line supervisor and the immediate manager. It is a process for developing better supervisors. It cannot (or at least should not) be delegated.

Here is the crucial difference: In many kaizen events, the specialist staff workshop leader is the one directing the actions of the team. The area supervisor may be a member of the team, but she is often not the one actually guiding the effort. In this model, there is no “learner” because there is no deliberate process to improve the problem solving and leadership skills of the supervisor.

If the course has a weak point it is that we “learners” are organized in a way that LOOKS more like a traditional kaizen team, which shifts the instructor / coach more into a role that LOOKS like that of the traditional kaizen workshop leader. Thus, it is easy for a participant to slip into a well-engrained mindset about kaizen events. We have all “practiced” the kaizen event pattern many times. The “kata” pattern is new.

This is the nature of the instructor coaching a group of “learners” rather than the 1:1 that is designed to happen in reality.

So, advice if you decide to attend: Be explicitly conscious that the structural limitations of the course, and deliberately work to overcome them in your mindset. This will help you grasp the material that you are there to learn.

That being said, I have a very explicit picture now of how I want shop floor supervisors to behave and lead. I have a pretty good idea of how to help them get there.

I’ve got an early flight, more later.

From The Toyota Kata Seminar

I am taking the Toyota Kata seminar this week in Ann Arbor. There are two programs offered:

  • A one-day classroom overview of the concepts in Toyota Kata.
  • The one-day classroom overview followed by two days of practice on a shop floor, for a total of three days.

I am taking the three day version.

Impressions of Day 1

There are about (quick count) 36 participants, a big bigger group than I expected considering the premise. I don’t know how many are not going to be attending the shop floor part, but most people are.

I suppose the ultimate irony is the slide that makes the point that classroom training doesn’t work very well for this.

Realistically, I can see it as necessary to level-up everyone on the concepts. The audience runs the gamut of people who have read, studied, written about, made training material from, and applied the concepts in the book; to people who seem to have gone to the class with quite a bit less initial information.

That being said, everyone had some kind of exposure to lean principles, though there was a lot of “look for waste” and “apply the tools” mindset present. Since one of the purposes of the class is to challenge that mindset, this is to be expected.

You can get a good feel for the flow and content of the material itself on Mike Rother’s web site. He has a lot of presentations up there (via Slide Share).

Like any course like this, the more you know when you arrive, the more nuance you can pull out of the discussion.

Since I have been trying to apply the concepts already, my personal struggles really helped me to get a couple of “ah-ha” moments from the instruction.I arrived with a clear idea of what I wanted to learn, and what I thought I already knew. Both pre-disposed me to get insight, affirmation, and surprise learning from the material.

I would not suggest this for anyone who was looking to be convinced. Classroom training in any case doesn’t do that very well, and this material isn’t going to win over a skeptic. You have to be disposed to want to learn to do it.

At the end of the day, the overall quality, etc. of the presentation was pretty typical of “corporate training” stuff – not especially riveting, but certainly interesting. But we don’t do this for the entertainment value, and the learner has a responsibility to pull out what they need in any case.

Insights from Day 2

Day 1 is intended, and sold, as a stand-alone. The next two days are available as follow-on, but not separately.

The intended purpose was to practice the “improvement kata” cycle in a live shop floor environment. Today was spent:

  • Developing our “grasp of the current condition.” There is actually a quite well structured process for doing this fairly quickly, while still getting the information absolutely necessary to decide what the next appropriate target is.
  • Developing a target condition. Based on what we learned, where can this process be in terms its key characteristics and how it performs, in a short-term time frame. (A week in this case)

Key Points that are becoming more tangible for me:

The “Threshold of Knowledge” concept.

I elaborated on Bill Costantino’s (spelled it right this time) presentation on this concept a while ago. In the seminar, I am “groking” the concept of threshold of knowledge a bit better. Here is my current interpretation.

There are really three thresholds of knowledge in play, maybe more. First is the overall organization. I would define the organizations’ threshold of knowledge as the things they “just do” without giving it any thought at all.

For example – one company I know well has embedded 3P into their product design process to deeply that the two are indistinguishable from one another. It is just how they do it.

They still push the boundaries of what they accomplish with the process, but the process itself is familiar territory to them.

Likewise, this company has a signature way to lay out an assembly line, and that way is increasingly reflected in their product designs as 3P drives both.

It wasn’t always like that. It started with a handful of people who had experience with the process. They guided teams through applying it, in small steps, on successively more complex applications until they hijacked a design project and essentially redid it, and came out with something much better.

Another level of knowledge threshold is that held by the experienced practitioner.

Today I walked into a work cell in the host company for the first time, and within a few minutes of observation had a very clear picture in my own mind of what the next step was, and how to get there. My personal struggle today was not in understanding this, but in methodically applying the process being taught to get there. I knew what the answer would be, but I wasn’t here to learn that.

An extended threshold of knowledge in one person, or even in a handful of people, is not that useful to the company.

But that is exactly the model most kaizen leaders apply. They use their expert knowledge to see the target themselves, and then direct the team to apply the “lean tools” to get there.

They tell the team to “look for waste” but, in reality, they are pushing the mechanics. You can see this in their targets when they describe the mechanics as the target condition.

The team learns the mechanics of the tools, but the knowledge of why that target was set remains locked up in the head of the staff person who created it.

So his job is to set another target condition: Expanding the threshold of knowledge of the team.

He succeeds when the team develops a viable target themselves. It might be the same one he had, but it might not. If he framed the challenge correctly, and coached them correctly, they will arrive at something he believes is a good solution. If they don’t he needs to look in the mirror.

So the next level of knowledge threshold is that held by the team itself.

If enough teams develop the same depth, then they start to interconnect and work together, and we begin to advance the organization’s threshold. Now what was previously required a major “improvement event” to develop is just the starting baseline, and the ratchet goes up a bit.

None of the above was explicitly covered today, but it is what I learned. I am sure I’ll get an email from a certain .edu domain if I am off base here. Smile

There is no Dogma in Tools

This is the third explicit approach I have been taught to do this.

The first was called a “Scan and Plan” that I learned back in the mid/late 1990’s. It was more of a consultant’s tool for selecting a high-potential area for that first “Look what this can do” improvement event.

Though I don’t use any of those forms and tools explicitly, I do carry some of the concepts along and apply them when appropriate.

Then I was exposed to Shingijutsu’s approach. This is heavily focused on the standard work forms and tools. Within the culture of Shingijutsu clients, it would be heresy not to use these forms.

The “Kata” approach targets pretty much the same information, but collects and organizes it differently. I can see, for myself, a of better focus on the structure of establishing a good target. I can also see a hybrid between this method and what I have used in the past. Each form or analytical tool has a place where it provides insight for the team.

One thing I do like about the “Kata” data collection is the emphasis on (and therefore acknowledgement of) variation in work cycles. (All of this is in the book by the way. Read it, then get in touch with me if you want some explanation.)

Now, I want to be clear – in spite of the title of this section, when I am coaching beginners, I will be dogmatic about the tools they use. In fact, I plan to be a lot more dogmatic than I have been.

I am seeing the benefit of providing structure so that is off the table. They don’t have to think about how to collect and organize the data, just getting it and understanding it.

What I can do, as someone with a bit more experience, is give them a specific tool that will give them the insight they need. That is where I say “no dogma.” That only applies when the principles are well within your threshold of knowledge.

The real ah-ha is that, unlike the Shingijutsu approach, we weren’t collecting cycle times at the detailed work breakdown level. Why not? Because, at this stage of improvement, at this stage of knowledge threshold for the team, the work cell, that level of detail is not yet necessary to see the next step.

I will become necessary, it just isn’t necessary now.

Target Conditions and PDCA Cycles

One place where my work team bogged down a bit this afternoon was mixing up the target condition that we are setting for a week from now, and what we are going to try first thing in the morning.

The target condition ultimately requires setting up a fairly rigid standard-work-in-process (SWIP) (sometimes called “standard in-process stock) level in the work cell.

There was some concern that trying that would break things. And it will. For sure. We have to stabilize the downstream operation first, get it working to one-by-one, and make sure it is capable of doing so.

The last thing we want to do while messing with them is to starve them of material.

So – key learning point – be explicitly clear, more than once, that the Target Condition is not what you are trying right away. It is the predicted, attainable, result of a series of PDCA steps – single factor experiments. You don’t have the answers of how to do it yet. So don’t worry about the SWIP level right now. That will become easier… when it is easier.

More tomorrow…

Clearing the Problem / Solving the Problem

As I work with clients to get a “problem solving culture” embedded, one common challenge is the distinction between the short term work-around to remove the obstacle, and the long-term countermeasure that actually improves the process.

I addressed this at a conceptual level in the “Morning Market” post a while ago.

Last week I was working with a client who has begun using the work-around as their key insight into the issue they have to solve.

When the work flow is disrupted, they are careful to capture what they had to do in order to clear the problem and get the item back into the normal production flow.

“We had to wait for parts.”

“We had to rework _____.”

“We had to get on someone else’s login for enough security to do the task.”

“We had to find the ____.”

“We had to replace ___”

This is really valuable information. By appending “Why did…” in front of the statement, they have a fairly well defined starting point for getting to the bottom of the actual issue.

By making the containment action the first “Why?” they get off the containment-as-solution mindset.

It might not work for everyone, but it is working very well for them.

“Please continue.”  Smile