Visual management is a hot topic in lean manufacturing. It is not a do-or-do-not method like kanban or SMED, but it is an underlying soft approach that just makes manufacturing easier. It won’t fundamentally change your operations, but it will smoothen a lot of problems. In this post I will go through the reasons WHY a shop floor needs visual management.
Kaizen
Kaizen Through Growing Your People
As mentioned in my last post, continuous improvement (kaizen) is done through people, ideally close to the shop floor. You should always look for people to develop and grow, as they in turn nurture your continuous improvement. While it is really hard to give specific recommendations that apply to everybody, let me muse a bit on the topic.
Who Does Kaizen?
One core aspect of lean manufacturing is continuous improvement, or kaizen in Japanese. This concept emphasizes ongoing, incremental enhancements to processes, products, and services. Yet, there are commonly differences between how Toyota does kaizen and how the rest of the world does kaizen. These mostly relate to who does most of the kaizen activities. In Western companies, kaizen is usually driven by management. At Toyota, most of the improvement originates from and is handled on the shop floor. Let me explain…
Different Ways to Do Kaizen
Kaizen (改善), or continuous improvement, is a cornerstone of lean manufacturing. If you stop becoming better, you will fall behind. But not all improvement activities are equal. There are different ways to do kaizen projects suitable for different situations. Let me give you an overview:
Making the Problem go Away Is NOT Improvement
Managing problems 
is an important part of manufacturing because it allows companies to identify and address issues that can impact product quality, production efficiency, and overall profitability. However, it is not to be confused with actual improvement. While taking care of the problem (hopefully) makes the problem go away, actual kaizen requires that the problem should not come back.
How to Reduce Your Lot Size Part 3—Customer, Machine, Leveling, and Tradition
This is the third and last post in my series on how to reduce the lot size. The first post gave some introduction and how to approach the problem of reducing lot sizes. The second post looked in more detail at how to reduce lot sizes due to changeovers, container size, and shipment size. This final post will look at the remaining causes of customer order size, machine batch size, the abominable leveling pattern, and tradition.
How to Reduce Your Lot Size Part 2—Changeover, Container, and Shipments
In my last post I gave some basics on how to reduce the lot size in order to reduce both inventory and fluctuations (mura). There are many different reasons why you may have larger lot sizes in the first place. Depending on the root cause, the possible solution may differ. In this and the next post I will look at these different root causes and possible solutions in more detail.
How to Reduce Your Lot Size Part 1—Introduction
In lean, the perfect lot size is one. Ideally, you should be able to make your products in a lot size of one. However, especially in mass production, larger lot sizes are common. Getting down to smaller lot sizes, or ideally to a lot size of one, is not always easy, and sometimes may not even be economically feasible (yet!). Let me discuss ways to reduce lot sizes.