9 minute read 25 Aug. 2021
Businessman and woman having a meeting in front of industrial robots in a high tech company

How manufacturers can capture the knowledge of experienced workers

9 minute read 25 Aug. 2021

The gap in knowledge between experienced and less-experienced workers is a concern.

In brief
  • Digital presents a massive opportunity for manufacturers to capture experienced workers’ knowledge.
  • When a manufacturer builds models that combine shop floor data with the intuition of knowledge workers, it can generate truly powerful insights.
  • The foundation of operational excellence at P&G is the company’s Integrated Work System (IWS), which has played a major role in the firm’s performance.

Imagine having a team of workers who walk through a factory every day and can tell if the plant’s heating, ventilating and air conditioning (HVAC) system is running properly just by the hum the equipment is making. What are they hearing and what do they know? That’s the kind of multimillion-dollar question so many manufacturers today want to answer.

More and more manufacturers looking to create a resilient, smart factory face an urgent challenge: capturing what's in the heads of their most experienced workers and translating it into process standards that other workers and the broader business can benefit from (see figure 1). It’s especially critical today, given the fact that the most important “tribal knowledge” in manufacturers is held by older workers who are nearing retirement. Manufacturers simply can’t afford to watch that knowledge walk out the door without codifying it so that it can be passed on to other workers.

Figure 1. Capturing workers’ knowledge

Figure 1. Capturing workers’ knowledge

Variable performance is a big challenge for manufacturers

The gap in knowledge between experienced and less-experienced workers is a significant and highly visible problem for most manufacturers. Take, for instance, the performance of a plant across different shifts. It’s not uncommon for performance metrics — such as mean time between failures, yield, quality or overall equipment effectiveness — to be better for one shift than another. And typically, the better-performing shift is the day shift. This is probably because this is the more desirable shift, which means it is the shift that longest-tenured operators and maintenance employees get to work in. The night shift, which is the domain of less-experienced workers, is usually the laggard. 

Clearly, experienced workers are doing something different from what their less-experienced colleagues are doing that leads to better performance. That “something different” is a by-product of years of experience: long time workers instinctively know what to do because they’ve pretty much seen it all in the 30 or so years they’ve been doing their jobs. That means a veteran line operator understands the tweaks to make throughout the day to keep a process in control in response to fluctuations in conditions, such as temperature, humidity, pollutant particulates or light. And yes, it also means experienced maintenance workers can immediately detect a problem with the HVAC equipment if the hum it makes isn’t just right.

The trick for manufacturers is how to turn this gut feel or art form into formal, documented standards and procedures that everyone can use so that the entire company enjoys a consistently high level of performance, regardless of who’s working which shift or in which plant. And that’s where digital can help.

Digital presents new opportunities to capture knowledge more effectively

Digital presents a massive opportunity for manufacturers to capture experienced workers’ knowledge, and to use that knowledge in conjunction with all the variable process conditions. This knowledge asset can be used to create more granular standards that enable less-experienced workers to effectively deal with the myriad changes a typical manufacturing process can experience.

With the proliferation of internet of things (IoT) sensors across the shop floor, manufacturers now have access to increasingly rich data on process, equipment conditions and performance they never had before. With that data fed into a Microsoft Azure-based platform, manufacturers can identify an event that happened at a point in time and record how experienced workers responded. In other words, it’s now possible to document in Azure that when certain measurable conditions existed, these experts recognized what was happening and reacted in a specific way because they’ve seen the same conditions thousands of times before and know what adjustments they needed to make.  

When a manufacturer builds models that combine this shop floor data with the intuition of knowledge workers, it can generate truly powerful insights that are specific to the manufacturer’s own dynamic environment. That prediction and those data points can then be built into the company’s standards. Workers with less experience and intuition can use this information to understand what they should do when the data tells them they’re encountering the same situations.

The same approach benefits maintenance activities. Let’s say a manufacturer has a piece of rotating equipment that loses its set point and begins vibrating. If the equipment doesn’t have sensors that generate performance data, a maintenance worker would have to take the equipment offline and try to figure out what was wrong and fix it. A highly experienced person who’s very familiar with the equipment might be able to do that in an hour. A less-experienced worker might take three or four hours — and may end up replacing non-defective parts in a trial-and-error effort to eliminate the vibration. A standard based on the experienced worker’s approach — how he diagnosed and fixed the problem — accompanied by a video of how to do it would help less-experienced workers benefit from that knowledge (and, thus, significantly reduce the equipment’s downtime). Augmented reality glasses such as the Microsoft HoloLens could further help the worker with the maintenance procedure, ensuring compliance with standards and taking more time out of the process.  

Now imagine the equipment is fitted with a variety of sensors that measure temperature, torque, resistance, voltage, pressure and other performance aspects. The data those sensors generate can enable workers to zero in on the exact cause of the vibration — for example, a pump nearing failure. Then, using a mobile device to access the Azure-housed standard and video for repairing the pump that’s based on an experienced worker’s knowledge, any maintenance person can quickly and effectively fix the pump. That’s a far better approach than a worker having to spend time poring over a paper-based manual with the pump’s bill of materials and schematic trying to figure out what to do. 

Think back to the HVAC inspectors mentioned earlier. That manufacturer ultimately used digital capabilities to codify the capabilities of the maintenance workers’ finely tuned ears. By applying sensors across the equipment to measure such things as decibel levels, vibration and sound waves, the company was able to translate the hum workers listened for, into objective data that less-experienced workers could use to diagnose the equipment’s condition. 

 

The process for capturing experts’ knowledge

Capturing experienced workers’ knowledge and insights so everyone can benefit seems like an obvious and intuitive thing to do. So why doesn’t every manufacturer do it? The reason is — it’s not that easy. Many manufacturing processes are highly dynamic, with myriad combinations of variables that are difficult to account for, and experienced workers do things instinctively on the fly. Getting these workers to sit down and document everything they do in every possible scenario in a written standard is unrealistic — especially when that takes them off the floor, where they’re the most valuable.

Manufacturers that lack operational excellence discipline especially struggle with this. They’re far more likely to experience variations in process performance because they tend to only capture experienced workers’ leading practices in an ad hoc way, almost by accident. These companies could benefit from multimedia platforms, housed in Azure, that can help workers quickly and easily turn their knowledge and experience into instructional content of all kind — including video, audio, written documents, webcam images, screen captures and hyperlinks. So, instead of spending hours writing about, for example, how to repair a piece of equipment, an expert can record a video of the process with his smartphone in actual time and upload it to the platform — where it’s available for other workers to access via their laptops or mobile devices wherever and whenever they need it. 

“Microsoft cloud-based business intelligence tools can allow employees to view and manage data in a visual and intuitive manner, and in real time — enabling them to make more evidence-based and timely decisions at all levels of production, operations and sales,” notes Neal Meldrum, Business Strategy Manager at Microsoft. Similarly, cloud analytics tools can reduce the time and expense of analyzing large amounts of product data, and thereby help reduce production costs.”

Using these and other such tools can get less-disciplined manufacturers on a path to a more formal and systematic approach to capturing “tribal knowledge” that’s embedded in highly advanced operational excellence programs, such as the one developed and curated over 20 years by Procter & Gamble (P&G). The foundation of operational excellence at P&G is the company’s Integrated Work System (IWS), which has played a critical role in the company’s culture and world-class performance for decades. IWS is based on the philosophy of striving for zero loss and 100% employee ownership, and it’s used in all P&G plants around the world to drive continuous improvements in throughput, quality, productivity and cost reduction. It’s also a key component of the EY Smart Factory solution, which is based on leading Microsoft technologies.  

Microsoft cloud-based business intelligence tools can allow employees to view and manage data in a visual and intuitive manner, and in real time.
Neal Meldrum
Business Strategy Manager at Microsoft

One of the defining elements of IWS is the emphasis on continually evolving and improving standards to generate operational consistency (see figure 2). These standards are unique in two ways. The first is that they’re positioned as not the definitive, unquestioned way of working, but rather, the current best approach. All workers are encouraged to always look for better ways to do things and improve on the standards in place — which means the standards continually benefit from P&G’s best practices and thinking. The second is that standards are put in place where problems have been solved, to draw a direct line between the use of those standards and beneficial impacts to the company. Such a clear connection illustrates the importance of standards and builds a cultural desire for people to follow them, which results in consistently high levels of performance across all of the company’s plants.

Figure 2. P&G’s Pyramid of Manufacturing Excellence

Figure 2. P&G’s Pyramid of Manufacturing Excellence

“IWS is valuable because it unleashes 100% of our employees to go and generate tangible value in the form of cost savings, inventory reductions, cash generation for the company. And this is fundamental for the company to grow,” Julio Nemeth, Global Product Supply Office, P&G

Accelerating the move to digital

As manufacturers look to strengthen their resilience, digital becomes increasingly important. That’s especially true in a post-COVID-19 environment, which will only accelerate manufacturers’ digital adoption. Going forward, digital will play a vital role in helping manufacturers capture the knowledge of their most experienced workers, give them a platform to use that knowledge to continually improve their standards and make that knowledge easily accessible to all workers. 

IWS is valuable because it unleashes 100% of our employees to go and generate tangible value in the form of cost savings, inventory reductions, cash generation for the company. And this is fundamental for the company to grow.
Julio Nemeth
Global Product Supply Officer, P&G

When workers’ best practices and thinking are combined with ever-richer digital process and equipment data, manufacturers will gain unprecedented ability to quickly and effectively diagnose and correct operational issues before they become big problems that can undermine performance. They also will be in a strong position to be able to respond to and bounce back from all kinds of disruptions, both big and small.

Keep an eye out for the next instalment of this series which will look at accessing workers knowledge. Read the previous article on this series, Four ways to use digital solutions to strengthen manufacturing resilience.

The views of third parties set out in this publication are not necessarily the views of the global EY organization or its member firms. Moreover, they should be seen in the context of the time they were made.

Summary

Using digital tools can get manufacturers to adopt a systematic approach to capturing “tribal knowledge” that can be embedded in highly advanced operational excellence programs. One such program is the “IWS,” developed by P&G. IWS has played a critical role in the company’s culture and world-class performance for decades.

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