The smart factory represents a leap forward from more traditional automation to a fully connected and flexible system—one that can use a constant stream of data from connected operations and production systems to learn and adapt to new demands.
CONNECTIVITY within the manufacturing process is not new. Yet recent trends such as the rise of the fourth industrial revolution, Industry 4.0,1 and the convergence of the digital and physical worlds—including information technology (IT) and operations technology (OT)—have made the transformation of the supply chain increasingly possible. Shifting from linear, sequential supply chain operations to an interconnected, open system of supply operations—known as the digital supply network—could lay the foundation for how companies compete in the future. To fully realise the digital supply network, however, manufacturers likely need to unlock several capabilities: horizontal integration through the myriad operational systems that power the organisation; vertical integration through connected manufacturing systems; and end-to-end, holistic integration through the entire value chain.2
In this paper, we explore how these capabilities integrate to enable the act of production. This integration is colloquially known as the smart factory and signifies the opportunity to drive greater value both within the four walls of the factory and across the supply network.
The smart factory represents a leap forward from more traditional automation to a fully connected and flexible system—one that can use a constant stream of data from connected operations and production systems to learn and adapt to new demands.3 A true smart factory can integrate data from system-wide physical, operational and human assets to drive manufacturing, maintenance, stock tracking, digitisation of operations through the digital twin and other types of activities across the entire manufacturing network. The result can be a more efficient and agile system, less production downtime and a greater ability to predict and adjust to changes in the facility or broader network, possibly leading to better positioning in the competitive marketplace.
The smart factory represents a leap forward from more traditional automation to a fully connected and flexible system
Many manufacturers are already leveraging components of a smart factory in such areas as advanced planning and scheduling using real-time production and stock data, or augmented reality for maintenance. But a true smart factory is a more holistic endeavour, moving beyond the shop floor towards influencing the enterprise and broader ecosystem. The smart factory is integral to the broader digital supply network and has multiple facets that manufacturers can leverage to adapt to the changing marketplace more effectively.
The concept of adopting and implementing a smart factory solution can feel complicated, even insurmountable. However, rapid technology changes and trends have made the shift towards a more flexible, adaptive production system almost an imperative for manufacturers who wish to either remain competitive or disrupt their competition. By thinking big and considering the possibilities, starting small with manageable components and scaling quickly to grow the operations, the promise and benefits of the smart factory can be realised. In this paper, we define and describe the concept of the smart factory:
In Deloitte’s first publication of this series, The rise of the digital supply network,4 we examined how supply chains traditionally are linear in nature, with a discrete progression of design, plan, source, make and deliver. Today, however, many supply chains are transforming from a static sequence to a dynamic, interconnected system—the digital supply network—that can more readily incorporate ecosystem partners and evolve to a more optimal state over time. Digital supply networks integrate information from many different sources and locations to drive the physical act of production and distribution.5
In figure 1, the interconnected lattice of the new digital supply network model is visible, with digital at the core. There is potential for interactions from each node to every other point of the network, allowing for greater connectivity among areas that previously did not exist. In this model, communications are multidirectional, creating connectivity among traditionally unconnected links in the supply chain.
Automation has always been a part of the factory to some degree and even high levels of automation are nothing new. However, the term “automation” suggests the performance of a single, discrete task or process. Historically, situations in which machines have made “decisions” have been automation based and linear, such as opening a valve or turning a pump on and off based on a defined set of rules. Through the application of artificial intelligence (AI) and increasing sophistication of cyberphysical systems that can combine physical machines and business processes, automation increasingly includes complex optimisation decisions that humans typically make.6 Finally—and perhaps most crucially—the term “smart factory” also suggests an integration of shop floor decisions and insights with the rest of the supply chain and broader enterprise through an interconnected IT/OT landscape. This can fundamentally change production processes and enhance relationships with suppliers and customers.
Through this description, it becomes clear that smart factories go beyond simple automation. The smart factory is a flexible system that can self-optimise performance across a broader network, self-adapt to and learn from new conditions in real or near-real time and autonomously run entire production processes.7 Smart factories can operate within the four walls of the factory, but they can also connect to a global network of similar production systems and even to the digital supply network more broadly.
The smart factory is a flexible system that can self-optimise performance across a broader network, self-adapt to and learn from new conditions in real or near-real time and autonomously run entire production processes.
It is important to note, however, that the smart factory as defined and described in this paper should not be considered the “end state,” given the rapid pace of technological development. Rather, it represents an ongoing evolution, a continuous journey towards building and maintaining a flexible learning system—rather than the “one and done” factory modernisation approach of the past.
The true power of the smart factory lies in its ability to evolve and grow along with the changing needs of the organisation—whether they be shifting customer demand, expansion into new markets, development of new products or services, more predictive and responsive approaches to operations and maintenance, limited of new processes or technologies, or near-real-time changes to production. Because of more powerful computing and analytical capabilities—along with broader ecosystems of smart, connected assets—smart factories can enable organisations to adapt to changes in ways that would have been difficult, if not impossible, to do so before.
As many manufacturers grapple with the myriad organisational and ecosystem-wide changes exerting pressure on their operations (see the sidebar “The smart factory: Why now?”), the smart factory offers ways that can successfully address some of those issues. The ability to adjust to and learn from data in real time can make the smart factory more responsive, proactive and predictive, and enables the organisation to avoid operational downtime and other productivity challenges.
As part of its efforts to implement a smart factory while producing air conditioners, a leading electronics company used a fully automated production system, three-dimensional scanners, Internet of Things (IoT) technologies and integrated machine control. The benefits of this automation included lower lead times for customers and lower overall costs, along with production capacity improvement of 25 per cent and 50 per cent fewer defective products.8
Figure 2 depicts the smart factory and some of its major features: connectivity, optimisation, transparency, proactivity and agility. Each of these features can play a role in enabling more informed decisions and can help organisations improve the production process. It is important to note that no two smart factories will likely look the same and manufacturers can prioritise the various areas and features most relevant to their specific needs.
Perhaps the most important feature of the smart factory, its connected nature, is also one of its most crucial sources of value. Smart factories require the underlying processes and materials to be connected to generate the data necessary to make real-time decisions. In a truly smart factory, assets are fitted with smart sensors so systems can continuously pull data sets from both new and traditional sources, ensuring data are constantly updated and reflect current conditions. Integration of data from operations and business systems, as well as from suppliers and customers, enables a holistic view of upstream and downstream supply chain processes, driving greater overall supply network efficiency.
An optimised smart factory allows operations to be executed with minimal manual intervention and high reliability. The automated workflows, synchronisation of assets, improved tracking and scheduling and optimised energy consumption inherent in the smart factory can increase yield, uptime and quality, as well as reduce costs and waste.
In the smart factory, the data captured are transparent: Real-time data visualisations can transform data captured from processes and fielded or still-in-production products and convert them into actionable insights, either for humans or autonomous decision making. A transparent network can enable greater visibility across the facility and ensure that the organisation can make more accurate decisions by providing tools such as role-based views, real-time alerts and notifications, and real-time tracking and monitoring.
In a proactive system, employees and systems can anticipate and act before issues or challenges arise, rather than simply reacting to them after they occur. This feature can include identifying anomalies, restocking and replenishing stock, identifying and predictively addressing quality issues,9 and monitoring safety and maintenance concerns. The ability of the smart factory to predict future outcomes based on historical and real-time data can improve uptime, yield and quality, and prevent safety issues. Within the smart factory, manufacturers can enact processes such as the digital twin, enabling them to digitise an operation and move beyond automation and integration into predictive capabilities.10
Agile flexibility allows the smart factory to adapt to time-table and product changes with minimal intervention. Advanced smart factories can also self-configure the equipment and material flows depending on the product being built and time-table changes and then see the impact of those changes in real time. Additionally, agility can increase factory uptime and yield by minimising changeovers due to scheduling or product changes and enable flexible scheduling.
These features afford manufacturers greater visibility across their assets and systems and allow them to navigate some of the challenges faced by more traditional factory structures, ultimately leading to improved productivity and greater responsiveness to fluctuations in supplier and customer conditions. For example, an apparel, accessories and shoe company is exploring ways to address some of the challenges manufacturers typically face, including global fragmentation of production and rapidly shifting demand (see the sidebar “The smart factory: Why now?”), by building one new smart factory each in Europe and North America. Traditional factories and supply chains can face challenges in keeping up with ever-shifting fashions. Located close to the point of customer demand, the new smart factories can better adapt to new trends and allow shoes to reach customers faster—an estimation of less than a week, compared with two to three months with traditional factories. Both smart factories will leverage multiple digital and physical technologies, including a digital twin, digital design, additive manufacturing machines and autonomous robots. The company plans to use lessons learnt from the two initial smart factories as it scales to more facilities in other regions, such as Asia.11
While automation and controls have existed for decades, the fully smart factory has only recently gained traction as a viable pursuit for manufacturers. Five overarching trends seem to be accelerating the drive towards smart factories:
Until recently, the realisation of the smart factory remained elusive due to limitations in digital technology capabilities, as well as prohibitive computing, storage and bandwidth costs. Such obstacles, however, have diminished dramatically in recent years, making it possible to do more with less cost across a broader network.12 Further, the capabilities of technologies themselves have grown more sophisticated: AI, cognitive computing and machine learning have enabled systems to interpret, adjust to and learn from the data gathered from connected machines.13 This ability to evolve and adapt, coupled with powerful data processing and storage capabilities, allows manufacturers to move beyond task automation towards more complex, connected processes.
As manufacturing has grown increasingly global, production has fragmented, with stages of production spread among multiple facilities and suppliers across multiple geographies.14 These shifts, coupled with the increased demand for regional, local and even individual customisation; strong demand fluctuation; and increasingly scarce resources, among other shifts, have made supply chains more complex.15Due to these changes, many manufacturers have found it important to be agile, connected and proactive to address ever-shifting priorities.
The rise of smart digital technologies has ushered in the threat of entirely new competitors who can leverage digitisation and lower costs of entry to gain a foothold in new markets or industries in which they previously had no presence, sidestepping the legacy of ageing assets and dependence on manual labour encumbering their more established competitors.
Factory automation decisions typically occur at the business unit or plant level, often resulting in a patchwork of disparate technologies and capability levels across the manufacturing network. As connected enterprises increasingly push beyond the four walls of the factory to the network beyond, they are beginning to have greater visibility into these disparities. The increasing marriage of IT and OT has made it possible for organisations to move many formerly plant-level decisions to the business-unit or enterprise level.16 This can illuminate where inefficiencies exist or where changes in one plant have resulted in complications in other facilities. It has also made the notion of the smart factory more of a reality than an abstract goal. While connectivity within the factory is not new, many manufacturers have long been stymied about what to do with the data they gather—in other words, how to turn information into insight and insight into action. The shift towards the connected digital and physical technologies inherent in Industry 4.0 portends solutions to this challenge: the ability to not only gather data, but to now analyse and act upon them in the physical world.17
Multiple talent-related challenges—including an ageing workforce, an increasingly competitive job market and a dearth of younger workers interested in or trained for manufacturing roles—mean that many traditional manufacturers have found themselves struggling to find both skilled and unskilled labour to keep their operations running.18 Deloitte has estimated that the US manufacturing industry could face a 2 million worker shortage over the next decade.19 Many companies are making investments in smart factory capabilities to mitigate the risk associated with this possibly pervasive labour shortage.20 However, this move can create a new set of talent-related consequences, as automated assets typically require highly skilled personnel to operate and maintain;21 even the location of manufacturing facilities would need to take into account factors such as this.
Many companies are making investments in smart factory capabilities to mitigate the risk associated with a possible labour shortage.
The decision on how to embark on or expand a smart factory initiative should align with the specific needs of an organisation. The reasons that companies embark or expand on the smart factory journey are often varied and cannot be easily generalised. However, undertaking a smart factory journey generally addresses such broad categories as asset efficiency, quality, costs, safety and sustainability. These categories, among others, may yield benefits that ultimately result in increased speed to market; improved ability to capture market share; and better profitability, product quality and labour force stability. Regardless of the business drivers, the ability to demonstrate how the investment in a smart factory provides value is important to the adoption and incremental investment required to sustain the smart factory journey.
Every aspect of the smart factory generates reams of data that, through continuous analysis, reveal asset performance issues that can require some kind of corrective optimisation. Indeed, such self-correction is what distinguishes the smart factory from traditional automation, which can yield greater overall asset efficiency, one of the most salient benefits of a smart factory. Asset efficiency should translate into lower asset downtime, optimised capacity and reduced changeover time, among other potential benefits.22
The self-optimisation that is characteristic of the smart factory can predict and detect quality defect trends sooner and can help to identify discrete human, machine, or environmental causes of poor quality. This could lower scrap rates and lead times, and increase fill rates and yield. A more optimised quality process could lead to a better-quality product with fewer defects and recalls.23
Optimised processes traditionally lead to more cost-efficient processes—those with more predictable stock requirements, more effective hiring and staffing decisions, as well as reduced process and operations variability. A better-quality process could also mean an integrated view of the supply network with rapid, no-latency responses to sourcing needs—thus lowering costs further. And because a better-quality process also may mean a better-quality product, it could also mean lowered warranty and maintenance costs.24
The smart factory can also impart real benefits around labour wellness and environmental sustainability. The types of operational efficiencies that a smart factory can provide may result in a smaller environmental footprint than a conventional manufacturing process, with greater environmental sustainability overall.25 Greater process autonomy may provide for less potential for human error, including industrial accidents that cause injury.26 The smart factory’s relative self-sufficiency will likely replace certain roles that require repetitive and fatiguing activities. However, the role of the human worker in a smart factory environment may take on greater levels of judgement and on-the-spot discretion, which can lead to greater job satisfaction and a reduction in turnover.27
Manufacturers can implement the smart factory in many different ways—both inside and outside the four walls of the factory—and reconfigure it to adjust as existing priorities change or new ones emerge.28 In fact, one of the most important features of the smart factory—agility—also presents manufacturers with multiple options to leverage digital and physical technologies depending on their specific needs.
The specific impacts of the smart factory on manufacturing processes will likely be different for each organisation. Deloitte has identified a set of advanced technologies that typically facilitate the flows of information and movement between the physical and digital worlds.29 These technologies power the digital supply network and, by extension, the smart factory—creating new opportunities to digitise production processes. Table 1 depicts a series of core smart factory production processes along with a series of sample opportunities for digitisation enabled by various digital and physical technologies.
It is important to note that these opportunities are not mutually exclusive. Organisations can—and likely will—pursue multiple digitisation opportunities within each production process. They may also phase capabilities in and out as needed, in keeping with the flexible and reconfigurable nature of the smart factory.
It is important for manufacturers to understand how they intend to compete and align their digitisation and smart factory investments accordingly. For example, some manufacturers could decide to compete via speed, quality and cost, and may invest in smart factory capabilities to bring new products (and product changes) to market faster, increase quality and reduce per-unit costs. Others may choose to focus on “lot size of one” product customisation and fulfilment models and invest in other technologies to fulfil those goals.
Just as there is no single smart factory configuration, there is likely no single path to successfully achieving a smart factory solution. Every smart factory could look different due to variations in queue layouts, products, automation equipment and other factors. However, at the same time, for all the potential differences across the facilities themselves, the components needed to enable a successful smart factory are largely universal and each one is important: data, technology, process, people and security. Manufacturers can consider which to prioritise for investment based on their own specific objectives.
Data are the lifeblood of the smart factory. Through the power of algorithmic analyses, data drive all processes, detect operational errors, provide user feedback and, when gathered in enough scale and scope, can be used to predict operational and asset inefficiencies or fluctuations in sourcing and demand.30 Data can take many forms and serve many purposes within the smart factory environment, such as discrete information about environmental conditions including humidity, temperature, or contaminants. How data are combined and processed, and the resulting actions, are what make them valuable.31 To power the smart factory, manufacturers should have the means to create and collect ongoing streams of data, manage and shop the massive loads of information generated, and analyse and act upon them in varied, potentially sophisticated ways.
In order to move to higher levels of smart factory maturity, the data sets collected will likely expand over time to capture more and more processes. For example, implementing a single use case might require the capture and analysis of a single data set. Implementing further use cases or scaling an operation to an industrial level will typically require expanding the capture and analysis of greater and different data sets and types (structured vs. unstructured), leading to considerations around analytical, storage and management capabilities.32
Data might also represent a digital twin, a feature of an especially sophisticated smart factory configuration. At a high level, a digital twin provides a digital representation of the past and current behaviour of an object or process. The digital twin requires cumulative, real-world data measurements across an array of dimensions, including production, environmental and product performance. The powerful processing capabilities of the digital twin may uncover insights on product or system performance that could suggest design and process changes in the physical world.33
For a smart factory to function, assets—defined as plant equipment such as material handling systems, tooling, pumps and valves—should be able to communicate with each other and with a central control system. These types of control systems can take the form of a manufacturing execution system or a digital supply network stack. The latter is an integrated, layered hub that functions as a single point of entry for data from across the smart factory and the broader digital supply network, aggregating and combining information to drive decisions.34 However, organisations will need to consider other technologies as well, including transaction and enterprise resource planning systems, IoT and analytics platforms, and requirements for edge processing and cloud storage, among others. This could require implementing the various digital and physical technologies inherent in Industry 4.0—including analytics, additive manufacturing, robotics, high-performance computing, AI and cognitive technologies, advanced materials and augmented reality—to connect assets and facilities, make sense of data and digitise business operations.35
One of the most valuable features of the smart factory—its ability to self-optimise, self-adapt and autonomously run production processes—can fundamentally alter traditional processes and governance models. An autonomous system can make and execute many decisions without human intervention, shifting decision-making responsibilities from human to machine in many cases, or concentrating decisions in the hands of fewer individuals. Additionally, the connectivity of the smart factory may extend beyond its four walls to include increased integration with suppliers, customers and other factories.36 This type of collaboration may raise new questions about processes and new governance models. With a deeper, more holistic view across the factory and the broader production and supply network, manufacturers could face new and different questions. Organisations may want to consider—and perhaps redesign—their decision-making processes to account for these shifts.
A smart factory does not necessarily translate into a “dark” factory. People are expected to still be key to operations. However, the smart factory can cause profound changes in the operations and IT/OT organisations, resulting in a realignment of roles to support new processes and capabilities.37 As mentioned earlier, some roles may no longer be necessary as they may be replaced by robotics (physical and logical), process automation and AI. Other roles might be augmented with new capabilities such as virtual/augmented reality and data visualisation. New, unfamiliar roles will likely emerge. Managing changes to people and processes will require an agile, adaptive change management plan.38 Organisational change management could play an important role in the adoption of any smart factory solution. The successful smart factory journey will require a motivated workforce that embraces the greater impact of their roles, innovative recruiting approaches and an emphasis on cross-functional roles.39
A smart factory does not necessarily translate into a “dark” factory. People are expected to still be key to operations.
By its nature, the smart factory is connected. Thus cybersecurity risk presents a greater concern in the smart factory than in the traditional manufacturing facility and should be addressed as part of the overall smart factory architecture. In a fully connected environment, cyberattacks can have a more widespread impact and may be more difficult to protect against, given the multitude of connection points. Cybersecurity risk seems to only grow more pronounced as the smart factory scales and potentially moves beyond the four walls of the factory to include suppliers, customers and other manufacturing facilities. Manufacturers should make cybersecurity a priority in their smart factory strategy from the outset.40
The challenge to begin may seem daunting. The nearly limitless configurations of smart factory solutions provide a number of pathways to proceed on the journey that need to be defined, planned and executed at a pace suitable to the organisation and the challenge—or opportunity. As manufacturers consider how to build their smart factory, they can begin with the following steps:
Smart factory investments often start with a focus on specific opportunities. Once identified, digitisation and insight generation fuel actions that can drive new value. Building and scaling the smart factory, however, can be as agile and flexible as the concept itself. Manufacturers can get started down the path to a true smart factory at any level of their network—value creation can begin with and scale from a single asset and use an agile approach to iterate and grow.
In fact, it can be more effective to start small, test out concepts in a manageable environment and then scale once lessons have been learnt. Once a “win” is achieved, the solution can scale to additional assets, production lines and factories, thus creating a potentially exponential value creation opportunity (figure 3).
A company’s manufacturing strategy and environment will determine which specific issues to address and the way to unlock value through smart factory solutions. Customising the approach to each scenario and situation can help ensure the resulting smart factory meets the needs of the manufacturer.
The smart factory journey requires more than just a set of connected assets. Manufacturers would need a way to shop, manage, make sense of and act upon the data gathered. Moreover, companies would need the right talent to drive the journey and the right processes in place. Each smart factory journey would require transformation support across solution design, technology and change management dimensions.
Far from being an “end state,” the smart factory is an evolving solution—one that taps into multiple features such as agility, connectedness, and transparency.
As mentioned earlier, the smart factory solution is a holistic solution, joining what happens within the four walls with what happens across the entire digital supply network. Therefore, in order to achieve a truly successful outcome, any organisation embarking on the smart factory journey should consider the full array of supply chain partners and customers from the start. Actions in one node, or for one stakeholder, can impact the others.
Far from being an “end state,” the smart factory is an evolving solution—one that taps into multiple features such as agility, connectedness and transparency. At a high level, the dynamic nature of the smart factory speaks to an unending call for creative thinking: imagining the possibilities of the nearly endless configurations that a smart factory solution makes plausible. Investing in a smart factory capability can enable manufacturers to differentiate themselves and function more effectively and efficiently in an ever-more complex and rapidly shifting ecosystem.