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Lean Thinking: Benefiting from Your Most Important Resource
Digital presses, workflow software, high-speed finishing equipment, UV ink, new substrates...These are just a few of the topics and products I see in the various print industry trade journals that find their way to my inbox each month.
By John Compton
Adopting new technologies and integrating state-of-the-art equipment are significant challenges that demand money, time and attention, among other resources. An even greater challenge to companies is how to improve on those new and existing processes so that waste, cost and time are continually reduced at a rate faster than the competition. As a result, many companies in the printing industry have turned to the practices of lean manufacturing and continuous improvement based on the Toyota Production System.
The fundamental elements of this system are displayed in Figure 1. This "house of quality" illustrates that the goals of highest quality, shortest lead time, least waste and lowest cost are built on a foundation of stability, load leveling, standardized work and kaizen. This base supports the two pillars of just-in-time and build-in quality, and their respective methods - all of which supports the company's pursuit of those four goals.
Perhaps the most glaring revelation was that most of the stalled companies focused their lean implementation almost exclusively on applying lean tools and techniques during kaizen events. Methods such as 5S, make-ready reduction, kanban scheduling and standardized work were, and still are, used to improve targeted processes. While they can produce significant improvement in their early application, in most cases, these methods were simply grafted on to the existing systems of production and management. In short, the culture didn't change.
With only a superficial understanding of how different lean manufacturing is from traditional production practices, it's not surprising this approach yields diminishing returns. Areas that were improved through 5S are unable to hold, let alone improve on, their gains, and eventually revert to their old state.
The same limited outcomes occur in the use of kanban systems, standardized work and make-ready reductions. Problems are not revealed and solved while small batch sizes are not reduced, inventory builds up and shortcuts are taken. Though the tools and methods of lean will help targeted areas, the improvements are not captured, sustained and built upon, and improvement initiatives can slow down and stall out. This has been the case for nearly 80% of the printing organizations I've worked for directly and as a consultant.
The Toyota Way
Additionally, I learned the companies that had experienced significant and sustained improvement had made serious investments in developing people and tapping into their brainpower for problem-solving activities. This included a behavioral change as supervisors and managers shifted from a fire-fighting/ directing role to a listening/coaching role - a difficult transition to achieve.
Let's take a deeper look at the Toyota Way's five elements, i.e., the basis of lean manufacturing.
Lean methods refer to the point where the tools of lean are used to assist with kaizen. The most fundamental of these is standardization of work as it defines the way things should be and what we should be striving for. A standard is simply the currently established best known way of performing a task or operating a process. Departures from standard - often spotted visually - identify problems that should be worked on through kaizen. To quote Taichi Ohno, the father of the Toyota Production System: "Without standardization, there can be no kaizen."
Lean requires a high level of management presence on the shop floor, so that if a problem exists, it can be fully understood before being solved. This is often accomplished through what is known as a "gemba walk," with the word gemba meaning "the place where real work is done."
Gemba does not mean the place of supporting or secondary work, such as accounting or human resources. It means the value-adding work that directly creates or delivers the product or service the paying customer cares about. For example, the place where people are creating layouts, making plates or operating presses - not sitting in a meeting room or office near the workers.
If you want to know the status of an important product shipment, get up and go to the shipping area to check. If there is a problem with quality in the pressroom, go to the shop floor to fully understand it. If there is a customer complaint, go to the customer's place of work to grasp the situation.
While data give us indicators, the facts are discovered by going to where the actual work is being done. There is high value in seeing and deeply understanding what is really happening.
The handful of printing companies that have achieved rapid performance improvement have developed a culture where people develop and improve while processes are being improved. They have learned that people improve processes and solve problems, thus respecting and developing people leads to sustained rates of operational improvement.
By coaching their team members to identify and solve problems, lean managers challenge them to think and act differently when they encounter issues at work. As a result, individual employees and teams continually improve their problem-solving and critical-thinking skills through guided practice.
Making Lean Work
One of lean's basic elements that management must be fully committed to is the "customer-first" philosophy. Most printing companies are dedicated to satisfying their external customers, but lean organizations also take a process view. Essentially, each succeeding process, function or department is the internal customer. The people in lean companies work hard to ensure that all team members and all departments realize their dual role: They are the customers of the previous operation and the supplier to the next operation downstream. For this concept to thrive, there must be no artificial barriers between areas or departments. The entire organization shares problems and must work together to ensure a solution is found.
Lean is an integrated and interdependent system involving many elements. You can think of it as a triangle, as seen in Figure 3, where the three sides represent philosophy, technology and management. Cradled in the middle of the triangle is what lean and continuous improvement is all about - people. Personal development is at the core of lean and continuous improvement. Unfortunately, this is frequently overlooked as management is drawn to the tools and technical elements such as kanban, just-in-time, visual control and 5S.
Of course, these tools are important to manage and improve the day-to-day production system as efficiently as possible. But the basic tenet of lean manufacturing is that people are the most important asset, which is why management must have a shop floor focus. Managers must understand that all value-added activities start on the shop floor and their job is to support the team members. Production staff appreciate management on the shop floor only when they can see that they are out there to help them do their jobs, rather than as part of the command structure telling them what to do.
Lean is not simply a set of concepts, techniques and methods that can be implemented by command and control. It is a fully integrated management and manufacturing philosophy that must be practiced throughout the organization from top to bottom and consistently applied and improved day after day.
The human dimension is the single most important element for success. Of all the resources that exist inside a printing company, people are the only asset that appreciates. Management's most critical role is coaching and helping large numbers of people work together to achieve a common goal. This includes defining and explaining what that goal is, sharing a path to achieving it, helping people to take the journey with you and assisting by removing obstacles. Striving to achieve a lean and continuous improvement initiative without respect for people is like trying to walk with only one leg.
Are you getting maximum value from your people?
John Compton is owner and principal of Compton & Associates, a consulting organization dedicated to improving the people, processes and profits of its clients. He is Professor Emeritus at the Rochester Institute of Technology, where he taught quality systems and process improvement for 25 years and served as Director of the Center for Quality and Productivity in the Graphic Arts. He was Vice President of Quality and Organizational Development at Fort Dearborn Company and later Vice President of Quality and Training at Vertis. Currently, he advises the Printing Industries of America on matters related to lean manufacturing and continuous improvement.
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