ARTICLE - The set of guidelines explained in this article will help you to understand how to properly structure your lean transformation, keeping into account the entire organization as it tries to embrace and manage change.
Words: René Aernoudts, President, Lean Management Instituut
Part of my job is to walk around organizations and help them to see - and ‘solve’ - their problems. It’s ‘solve’ between quotation marks because it often comes down to testing a hypothesis by implementing countermeasures in a very controlled manner, as opposed to squarely fix a problem.
The challenges companies face are varied, and go from reducing the lead-time to making sure the customer doesn’t leave for another supplier or getting people to take more initiatives to improve work. None of them are easy to tackle.
When organizations decide it’s time to improve the way they work, there are a number of elements we tend to see a lot of as we analyze the chosen approach to achieving a lean transformation. Too often, one or more of the following seem to apply to the most common approaches companies adopt:
Many of these rather limited approaches can bring some positive effect, or otherwise not harm too much, but they also suffer a common problem: they can’t lead to stability and sustainability of results. Implementations will start an inevitable decay as soon as a leader of the pack moves on, a problem reoccurs or interest fades away. Alternatively, when the implementation moves to other areas or divisions, discussions arise or the entire transformation comes to a stop because of power battles people on the floor won’t even see. There are also cases where the knowledge and experience level or the earning model of the (internal or external) consultant erode the chosen approach.
Long story short, I rarely see a well-thought lean transformation that takes into account the organization in its entirety.
However, there are a number of guidelines that can help set the foundations for a successful transformation. There are three ‘sets’ of guidelines you might find useful.
The first set refers to the tasks a lean manager (or at least that manager who is responible for the implementation of lean) should concentrate on, as stated by lean expert Dan Jones:
The second set of guidelines is based on interviews with Toyota veterans by colleague and lean expert Art Smalley (a Toyota veteran himself). One the one hand, they focus on finding and understanding the key questions (or key challenges or the vital few). On the other hand, they relate to the logic of using specific analytical methods and countermeasures. This second set consists of eight key questions:
The first two questions focus on the purpose of the organization; questions 3 to 6 are about process; and the last two questions are about people and how to create a sustainable improvement culture.
Related to each of the results these basic questions refer to, we can see a number of symptoms or problems (some can be caused by more than one of these activities – rework, for example, can be a symptom of points 3, 5 or 6).
Again, each question finds its answer in the set of methods that can be used to identify the root cause of and the countermeasure to the problem it addresses. For example, the way to achieve JIT production and delivery (as per question 4) is using value stream mapping to create insight, or implementing a pull system as a countermeasure. For question 5 and 7 it is using job instructions and standardized work.
This set of questions can help to better understand your problems as an organization, and points you in the direction of the methods and countermeasures you can deploy.
The third set of guidelines is mainly used within Toyota (even though not every Toyota veteran is aware of it) and focuses on the order in which improvement activities should be performed (possibly within the entire course of a transformation).
It is known as OSKKK, which stands for: Observation; Standardization; Kaizen 1; Kaizen 2; Kaizen 3.
Here’s a more detailed description on each of these elements:
1. Observation: by actively observing the workplace and speaking with staff you can see problems arise (see the set of core questions above). Look at multiple cycles of the same process, and several people performing that same process. Try to detect variation, the source of your woos. How many leaders do you know who are actually willing to stand in an Ohno Circle for two hours?
2. Standardization of equipment, movement, tasks and management: prioritize where in the process standardization is critical, explain to all employees which method is considered best practice, and help everyone to learn how to work according to the standard. Eliminate problems and introduce 5S (workplace organization), if useful.
3. Kaizen 1: improve the information and material flow and process. Only after you have standardized is it time for Kaizen 1: using value stream mapping, you can outline the current information and material flow, process and timeline. To determine the objective, ask yourself what you want to achieve with this kaizen. Analyze the situation, determine the countermeasures, and implement the action plan. In general, the focus is on reducing the cycle time so that the real issues on the table can be addressed.
4. Kaizen 2: improve the equipment. If you have more than one type 1 Kaizen running and you have come to the limit of what can be achieved, start working on improving equipment. If you rely on machinery to complete your work, then you are going to work on reducing the changeover time, accelerating machine speed, simplifying your equipment, etc. This type of Kaizen generally calls for some investment.
5 . Kaizen 3: improve the layout. Only when you have gone through the other two types of Kaizen can you move on to Kaizen 3 to improve the layout of your workplace. This type of Kaizen usually requires considerable investment, so it’s better to focus on Kaizen 1 and 2 first. Based on various data (from value stream maps, OEE , products, etc) you will come up with at least three alternative proposals for a new layout, all of which apply lean principles. You can effectively test the new layout by using cardboard mock-ups to simulate the process.
Too often we see people quickly start running kaizen events without fully understanding what the situation is and what the potential issues that will arise are. In technically-oriented environments especially (where most of the people employed have technical skills), Kaizen 2 and Kaizen 3 are very popular, and people prefer to drop Kaizen 1 because it is perceived as being too difficult. It requires working with people, and that’s difficult: after all, you will need many people to collaborate and different working methods to co-exist. Plus, social interaction will require your full attention.
So here they are, the three sets of guidelines that can help you to shape your lean transformation. Don’t forget that every good transformation is characterized by the application of PDCA to the transformation process itself. So keep learning, adjusting and testing. This will require some explaining, understanding and courage at first, but it will ultimately facilitate the transformation of your organization, and yourself. Good luck!