In manufacturing, buzzwords and trendy concepts seem to appear quicker than new product launches. One concept that has been around for decades yet continues to dominate debates is “Lean Manufacturing.” However, while everyone is talking about it, not everyone is aware of what is actually going on in the lean area. Surprisingly (or not), not every trend you hear about is based on actual facts or proven results.
So, what is going on in lean manufacturing? Let us break it down.
The Human Side of Lean
For years, lean manufacturing debates were mostly on tools, processes and technologies. However, there is a growing understanding that the human aspect is critical to lean performance.
Respect for people is not a new concept; it has long been a basic element of lean started by Toyota years ago. We have to emphasise employee involvement, constant learning, and fostering an innovative culture. Tear up the old rule book and start afresh. If your employees are involved with, and own the changes, then the changes and improvements will happen. If you just tell people what to do and throw a book of ‘lean tools’ at them, expect more of the same.
Companies such as Danaher Corporation have made news for their lean culture efforts. They say that these initiatives have been critical to their success in implementing lean across many business divisions. (1)
Building a lean culture is easier said than done. It necessitates long-term commitment and a desire to completely alter how your business functions. Don’t anticipate quick results and don’t expect to do this in a classical top-down management environment.
Industry 4.0 Integration
You can’t toss a stone at a manufacturing convention without encountering someone discussing Industry 4.0. What’s the promise? The seamless integration of digital technology and lean concepts results in unparalleled efficiency. Doesn’t it sound great?
But here’s the reality: while integrating lean with digital technology has undeniable potential, it’s not the silver bullet some consultants claim. Many businesses are trying to make this integration work in practice.
According to a McKinsey report, 70% of organizations that trial digital transformation fail. Why? Often, it’s because they’re attempting to push digital solutions onto existing processes without first streamlining those processes using lean concepts.
What’s the lesson? Do not put the digital cart before the lean horse. First and first, focus on mastering the principles of lean, then consider how technology may improve those processes.
The Magic of Lean-Agile Manufacturing
There has been a lot of talk about merging lean manufacturing concepts with agile software approaches. The goal is to develop more flexible and responsive production systems.
But we have to walk carefully. While lean and agile have certain complementing characteristics, they are not necessarily a perfect fit. Agile stresses quick iteration and adaptability, whereas lean focuses on waste elimination and flow creation.
Some businesses have found success with this strategy, especially in industries with frequently changing product needs. Toyota, the original lean pioneers, experimented with “lean-agile” approaches to software development.
However, this is not a one-size-fits-all answer. Before jumping on the lean-agile bandwagon, think about if your unique manufacturing setting might benefit from this strategy.
Green Is the New Black?
Sustainability is a major subject right now, and lean manufacturing is no exception. There’s a rising trend of incorporating environmental sustainability into lean methods, sometimes known as “Green Lean.”
On paper, this makes logical sense. Lean is all about decreasing waste, and what could be more wasteful than environmentally harmful practices? But… some businesses are using “Green Lean” as a marketing catchphrase without making any significant adjustments.
While many businesses claim to be following Green Lean techniques, just a tiny number are doing so in a thorough, meaningful way.
What’s the takeaway? If you’re serious about sustainable lean manufacturing, it must be more than simply a catchphrase. It necessitates a complete rethinking of your operations, from sourcing to manufacturing to distribution.
Is Lean in the Supply Chain the New Frontier?
Global events over recent years have highlighted the fragility of many supply chains, reigniting interest in adopting lean ideas outside the four walls of the plant.
The concept of a “lean supply chain” is not new, but what is new is the awareness that genuinely efficient lean manufacturing necessitates examining the whole value chain, from suppliers to end consumers.
Companies like Walmart are well-known to make attempts to establish leaner, more responsive supply networks. They say that these initiatives have resulted in considerable cost reductions and increased customer satisfaction.
That being said, executing lean in a complicated global supply chain is really difficult. It necessitates unprecedented levels of cooperation and data exchange across organizations.
Before you rush to rethink your whole supply chain, identify the most significant pain areas and focus your lean efforts on them.
AI and Machine Learning in Lean
Artificial intelligence and machine learning are the newest buzzwords in lean manufacturing. What’s the promise? Using these technologies to accelerate continuous improvement efforts and develop self-optimizing manufacturing systems.
Some early adopters, like Siemens, claim to have seen significant benefits from AI-powered lean programs. They report considerable enhancements to predictive maintenance and quality control.
But let’s not get carried away. While AI and machine learning have the potential to improve lean manufacturing, they are not a silver bullet. They require massive volumes of high-quality data to function well, something many manufacturers struggle with.
Furthermore, there is a risk of becoming overly reliant on these technologies and losing sight of the core lean value of respect for people. AI should support, not replace, human decision-making in lean operations.
The goal is to approach these patterns with a critical mindset. Don’t just join the bandwagon because everyone else does. Instead, thoroughly consider each trend in light of your unique manufacturing constraints and goals..
Lean is really about continual improvement. That necessitates being open to new ideas and technology while also being willing to question and test them thoroughly. It’s about discovering what works best for your own scenario, rather than mindlessly following the next fad.
Lean manufacturing is about continuously chasing perfection in your own distinct way. Keep this in mind, and you’ll be better able to smell the difference between significance and fad.