Industry 4.0 for the Construction Industry: Review of Management Perspective

Technology and innovations have fueled the evolution of the fourth industrial revolution (Industry 4.0). Industry 4.0 spurs growth and development through its efficiency capacity, as documented in the literature. The growth of the construction industry is a subset of the universal set of the value of gross domestic product, and thus, industry 4.0 has a spillover effect on the engineering and construction industry. The aim of this paper is to map the state of Industry 4.0 in the construction industry from the point of view of manarial activities, such as investment management, project preparation, and an overall approach to the management of related activities. This study employed scoping review techniques to dissect the status quo for Industry 4.0 and the construction industry. The empirical results from the systematic and scoping review methods for the ten sampled publications revealed that information and communication technology (ICT)—Industry 4.0—has a significant positive impact on the growth of the construction industry. Therefore, construction practitioners should partner more with researchers in the ICT industry to enhance the automation of work processes and managerial activities in the engineering and construction industry.


Introduction
German high-tech strategic initiative plans for 2020 for the digital revolution in production, as published in 2011, gave birth to Industry 4.0-the fourth industrial revolution. Society's transition from the first to the fourth industrial revolution (IR4.0) was characterized by production with an inclination toward digitization and the adoption of "smart production" (Lasi et al. 2014;Lee and Lee 2015;Schmidt et al. 2014;Bahrin et al. 2016). Hermann et al. (2016) identified the critical components of IR4.0 as cyber-physical systems (CPS), Internet of things (IoT), Internet of services (IoS), artificial intelligence (AI), big data, and smart production, which are useful for the optimal modus operandi in the construction industry. The essence of IR4.0 is to ascertain intelligent and smart operations during production in which data classification is based on fuzzy clustering/neural networks and scheduling based on a genetic algorithm to revolutionize the management decision-making process (Fengque et al. 2017). great wall, the Egyptians with their majestic pyramids, and the Romans with their sophisticated cities equipped with roads and waterways (Kwok 2018). A series of records and documents of managerial strategies and their contribution to the management field have been documented in The History of Management Thought (Jackson 2013), from ancient civilizations to management in medieval times, the industrial revolution and the beginning of modern management. The development of managerial thought is portrayed in some early writing such as The Art of War (Tzu 1910), Arthashastra by Chanakya (third century BC) and The Prince by Machiavelli Niccolo (1532). These books influenced the management industry with their development of a theory of management and the management of organizations and were reflected in Western military hierarchy and public administration systems (from the Essay UK Evolution of Management Theory (2018)).
The industrial revolution brought about drastic changes in basic technology, thus determining the operating and power modes of the items designed, how people feel, the mode and scale of public perception, and the method that people use to cognize knowledge, to the extent that a new living method can be constructed (Wang et al. 2015). We have heard great stories regarding the success of revolution-era industry that created a global reorganization of production, utilization, demographic activities and international relations, with few names of industrialists having been mentioned. What we have seldom heard about is the unreadiness of most people to adopt new technologies and the increasing amount of the population that demand work but whose opportunities have been replaced by machines (Gulzar 2015). The theory of management provided a rational and scientific basis for the management of organizations to create efficient planning, organizing, influence and control of all work activities (Pindur and Rogers 1995) with a managerial educational framework to motivate employees and to improve productivity (Sarker and Khan 2013). This theory is called classical management theory, which stands on two fundamental pillars: scientific management and administrative management.
According to Khorasani and Almasifard (2017), in the late 19th century, scientific management theory was introduced by Taylor. It is based on the strong principle of dividing employees according to their skills, tasks, knowledge, performance and rewards, which improves the efficiency of production. In contrast to scientific management theory, administrative management theory as described by Fayol and Weber focuses on hierarchical and bureaucratic structured organization for effective management. In the 1930s, management theory extended its boundaries to behavioral science in order to address the concept of development goals through aspiration and motivation (Greve and Argote 2015). Drucker (2007) has identified seven more post-war managerial developments that consist of management science theory, decentralization, personnel management, manager development, managerial accounting, marketing and long-range planning. However, according to Drucker (2007), there is a need to have a 'final' management paradigm that focuses on results and performance as their first task. Another method is project management. This concept was created in the 1990s as a tool for managing project activities (Crawford 2006). A project consists of a temporary organization of cross-functional members that disband at the end of the project. According to PMI Congress Denver 10'08 PMI Congress Denver 10'08 Archives (2008), "the project-based organization is an ideal form for managing increasing product complexity, fast changing markets, cross-functional business expertise, customer-focused innovation and markets, and technological uncertainty" (Using Cross Project Learning to Improve Project Management (2010)). It is therefore clear that it is a contextual concept phenomenon of Industry 4.0.
Industry 4.0 has the potential to create the need for a managerial paradigm shift as the industry experiences technological and innovation changes and is replacing all sort of manual business operation with digital computerization. Shamim et al. (2016) stated that the final managerial shift should tackle workforce training skills, the aging society, resource efficiency, clean production and mass customization, and should increase product variability, shorten life cycles, and deal with dynamic value chains, volatile markets and cost reduction pressures. Future study should consider these issues alongside the applicability of technologies. The concept of IR 4.0 for the construction industry, together Economies 2019, 7, x FOR PEER REVIEW 4 of 14 mass customization, and should increase product variability, shorten life cycles, and deal with dynamic value chains, volatile markets and cost reduction pressures. Future study should consider these issues alongside the applicability of technologies. The concept of IR 4.0 for the construction industry, together with the benefits and challenges of IR 4.0 toward the construction industry, is pictured in Figure 1 (Oesterreich and Teuteberg 2016).

Management in the Construction Industry
Construction involves many people with diverse interests, talents and backgrounds. The primary triad involves stakeholders-who are the owners-design professionals and contractors, with subcontractors, material suppliers, bankers, insurance and bonding companies, attorneys and public agency officials as the supporting team (Bennett 2014). This overall construction management team will undergo very complex project life cycle processes which are decomposed into several stages: market study, conceptual planning, design, procurement and construction, startup for occupancy, operation and maintenance and disposal (Hendrickson 2012). Activities and tasks in some stages may depend on which country and what authority controls the project. RIBA (2013), from Royal Institute of British Architecture has developed a thorough explanation of the RIBA work plan project stages, with 7 stages in total: strategic definition, preparation and brief, concept design, development design, technical design, construction, handover and close out. The construction industry is known for the heterogeneity of its construction activities (Gálvez-Martos et al. 2018), and all projects need to undergo these stages for the effective management of a project's schedule, cost, quality, safety, scope, and function. IR 4.0 has introduced construction digitalization, where building information modeling (BIM) has become the center of the project. BIM is presented as an ideal stage for the development of powerful and innovative applications for the engineering and construction (AEC) industry by providing additional layers of data that are able to interact in real time and collaborate throughout the design stage (Bilal et al. 2015). The innovation of BIM provides a new means of predicting, managing and monitoring the quality and quantity of material to achieve better material handling. Currently, with BIM360 API, existing construction management tools are possible to integrate with BIM to extend its capabilities in the construction ecosystem during the design stage (Autodesk BIM 360 API 2019).
The critical components of IR 4.0, cyber-physical systems (CPS), Internet of things (IoT), Internet of services (IoS), artificial intelligence (AI), big data, and smart production applications (Hermann et

Management in the Construction Industry
Construction involves many people with diverse interests, talents and backgrounds. The primary triad involves stakeholders-who are the owners-design professionals and contractors, with subcontractors, material suppliers, bankers, insurance and bonding companies, attorneys and public agency officials as the supporting team (Bennett 2014). This overall construction management team will undergo very complex project life cycle processes which are decomposed into several stages: market study, conceptual planning, design, procurement and construction, startup for occupancy, operation and maintenance and disposal (Hendrickson 2012). Activities and tasks in some stages may depend on which country and what authority controls the project. RIBA (2013), from Royal Institute of British Architecture has developed a thorough explanation of the RIBA work plan project stages, with 7 stages in total: strategic definition, preparation and brief, concept design, development design, technical design, construction, handover and close out. The construction industry is known for the heterogeneity of its construction activities (Gálvez-Martos et al. 2018), and all projects need to undergo these stages for the effective management of a project's schedule, cost, quality, safety, scope, and function. IR 4.0 has introduced construction digitalization, where building information modeling (BIM) has become the center of the project. BIM is presented as an ideal stage for the development of powerful and innovative applications for the engineering and construction (AEC) industry by providing additional layers of data that are able to interact in real time and collaborate throughout the design stage (Bilal et al. 2015). The innovation of BIM provides a new means of predicting, managing and monitoring the quality and quantity of material to achieve better material handling. Currently, with BIM360 API, existing construction management tools are possible to integrate with BIM to extend its capabilities in the construction ecosystem during the design stage (Autodesk BIM 360 API 2019).
The critical components of IR 4.0, cyber-physical systems (CPS), Internet of things (IoT), Internet of services (IoS), artificial intelligence (AI), big data, and smart production applications (Hermann et al. 2016), can optimize the use of BIM during the construction stage. This increases productivity by improving waste management operations. It extends the capabilities of BIM by monitoring the material handling on site, segregating the waste on site, monitoring the operation of the project and supervising the workers using the BIM model. An example could be the location of Economies 2019, 7, 68 5 of 14 the truck and the amount of waste carried by the trucks. This will enhance the operation and data management by the local authorities and government agencies. This paper is expected able to highlight the new route of construction management in the IR 4.0 era.

Methods
This scoping review is performed to provide an overview and summary of current studies that focus on IR 4.0. To date, although the number of publications covering these topics is limited, the data indicate rapid development, as the number of studies is growing tremendously. For example, in the Scopus database, using the Industry 4.0 search theme, the number of publications has doubled every year. In 2014, 8 papers were recorded, which increased to 36 papers in 2015, 44 papers in 2016, 67 papers in 2017, and 143 in 2018, making a total of 298 papers. However, this study focuses only on the construction industry topic, and so searching for Industry 4.0 and construction industry-related papers is required.
The methodological framework by Arksey and O'Malley (2005) was used for the scoping review, which involved five stages: (1) identifying research questions; (2) identifying relevant studies; (3) selection of the study; (4) charting the data; and (5) collating, summarizing, and reporting the results (Arksey and O'Malley 2005). A flow diagram referring to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2009) showed the flow of articles from the search to final selection. Authors identified the following research question: What are the key activities, benefits and challenges in Industry 4.0 from a managerial perspective?

Search Strategy and Eligibility Criteria
In this paper, on December 2018, the authors conducted a scoping review to clarify the working definition for IR 4.0 in the construction industry, scoping from a paper published from 2014 to 2018 in the Web of Science and Scopus. The following keywords were used for the search: "Industry 4.0 and construction." A total of 298 IR 4.0-related construction studies were identified on the Scopus and Web of Science. After eliminating duplicate papers focusing only on reviews and original papers, the study distributions are illustrated in Table 1.

Synthesis of Search Results
The stylized facts of articles related to Industry 4.0 and construction are conducted in the form of a relative analysis by comparing annual published articles from the Scopus and Web of Science  The search for "Industry 4.0 and construction" revealed 300 published articles, in which two were undated articles and were excluded in the review process because they would have been difficult to properly cite. Thus, 298 articles remained for an initial desktop review, but 223 were excluded at this stage because of the partial exclusion of the keywords for this study, leaving 75 articles. After thoroughly reading the abstract, 36 were excluded because of specialization description issues, and 39 articles remained. This study comprehensively reviewed these 39 articles and found that only 10 were most relevant to this study for a systematic review synthesis (Figure 3).

Results
The scoping review for this study relies on the synthesis of the literature gathered from the empirical studies conducted to dissect the connection between the fields of IR 4.0, construction, and engineering. In this study, 10 articles fall into these categories and were conducted primarily in developed countries in Europe, with a few from developing countries in Asia. These studies shared the common attribute of the important role that digitization plays in ascertaining efficiency in management and production (Table 2). .0 and construction" revealed 300 published articles, in which two were undated articles and were excluded in the review process because they would have been difficult to properly cite. Thus, 298 articles remained for an initial desktop review, but 223 were excluded at this stage because of the partial exclusion of the keywords for this study, leaving 75 articles. After thoroughly reading the abstract, 36 were excluded because of specialization description issues, and 39 articles remained. This study comprehensively reviewed these 39 articles and found that only 10 were most relevant to this study for a systematic review synthesis (Figure 3).

Results
The scoping review for this study relies on the synthesis of the literature gathered from the empirical studies conducted to dissect the connection between the fields of IR 4.0, construction, and engineering. In this study, 10 articles fall into these categories and were conducted primarily in developed countries in Europe, with a few from developing countries in Asia. These studies shared the common attribute of the important role that digitization plays in ascertaining efficiency in management and production (Table 2).
Construction project management represents the adequate coordination of construction resources (labor, materials, financing, and machinery) to achieve the highest quality, minimum duration and minimum cost to achieve optimal project targets. Management faces concurrent interdependent decisions during construction projects, and, with the aid of IR 4.0, efficient and effective management decisions are made (Niu et al. 2016). Most synthesized studies do not directly discuss management's perspective on IR 4.0 and the construction industry; however, this study determined the applicability of the research problem.
The synthesis for this study relied on the assessment of the residual 10 articles, among which 1 is a conference paper, 1 is a paper, 1 is a book publication, and 7 are journal papers. From a broader perspective, IR 4.0 is a comprehensive term that researchers have described from different angles, but a connection is always made at some point in the description. Liu et al. (2018) asserted that IR 4.0 in most studies is linked to IoT, cyber CPS, ICT, enterprise architecture (EA), and enterprise integration (EI). These areas of technology (automation) have spillover effects into managerial operations/decisions and efficiency in the construction industry.
The development and deployment of other technologies supporting the success of this approach to date are pushing toward IR 4.0. Several studies have provided clear evidence that the construction industry is doing more and is generating and championing the use of these digital methodologies (Table 3). At the same time, IR 4.0 introduces some implications for the construction industry. In particular, over the last three years, the use of digital techniques in design and construction has started to mature and has even become the norm for many companies. Dallasega et al. (2018) and Alaloul et al. (2018) concluded that IoT's speedy management of real-time information sharing and coordination of communication improves flow and the supply chain of construction materials, thus enhancing the efficiency of the production line. Therefore, production costs will be at a minimum and profit margins will be improved because investments are adequately applied. Eroshkin et al. (2017) opined that an automated control system assists the performance of long-term projects and, thereby, allows management decisions to be less taxing and cumbersome because investment monitoring and implementation are handled through an automated system. Niu et al. (2016) asserted that the global construction industry before the advent of IR 4.0 faced problems such as delayed deliveries, unsatisfactory quality, and poor budgeting techniques; however, with the adoption of information technology, the narrative has changed, leading to a satisfactory result and, thereby, ensuring management's productivity (Maresova et al. 2018;Oesterreich and Teuteberg 2016;Alaloul et al. 2018).
In summary, all of the assertions regarding IR 4.0 and the construction industry from the management perspective are captured in the benefits from IR 4.0 to the construction industry: cost savings, time savings, on-time and on-budget deliveries, improved quality, improved collaboration and communication, improved customer relationships, enhanced safety, an improved image for the industry, and improved sustainability in E&C (Oesterreich and Teuteberg 2016). To identify the way Internet of Things (IoT) solutions are conceived.
Longitudinal review of the literature Understanding the transformational process in the construction industry.

Lacks uniformity
Bock (2015) "The future of construction automation: Technological disruption and the upcoming ubiquity of robotics" To describe opportunities for potential construction automation.
Scoping review and overlay of S-curves i. Robot systems are more developed and work independently. ii. General-purpose robots are disrupting the construction industry space.
Lacks methodological steps and case study Oesterreich and Teuteberg (2016) "Understanding the implications of digitization and automation in the context of Industry 4.0: A triangulation approach and elements of a research agenda for the construction industry" To explore the designing and application of technologies to the construction industry.

Systematic review
The use of a digitization process in managerial operations is rare in the construction industry.
Lacks empirical analysis Eroshkin et al. (2017) "The paradigm of the integration of different types of management information systems in investment and construction company implementing the project approach" To examine trends and developments in construction project management systems.

Report
Technologies boost optimal production lines in the construction industry.

Scant literature review
Hampson (2014) "R&D Investment and Impact in the Global Construction Industry" To bring together contributions from leading industry researchers in a diverse group of countries to investigate the role of research and development (R&D) in the construction industry.
Case study Industry 4.0 maximizes the impact of R&D in the construction industry.

Discussion
Science, technology, and innovations (STIs) are engines to drive growth, as witnessed in the fourth industrial revolution (IR 4.0). IR 4.0 is viewed as an impetus to technological improvements in an organization and increases the remote coordination of human, material, and financial resources in the construction industry. Given these IR 4.0 qualities, operations with geographical and cognitive proximity dimensions are efficiently managed (Dallasega et al. 2018).
These mechanisms transform most developed countries from traditional societies towards high-mass consumption driven by mass production, as aided by "smart production" (Rostow 1960). One of the traditional factors of production is land, which is directly associated with the E&C industry and is not excluded from the benefits that IR 4.0 brings to the economy. The key relevance of IR 4.0 for construction is categorized by 3D value chain models: smart factory, simulation and modeling, and digitization and visualization. The smart factory value chain consists of automation, modularization (prefabrication), and product-lifecycles (PLM). The simulation and modeling value chains involve simulation tools, building information modeling (BIM), augmented reality (AR), virtual reality (VR), and mixed reality (MR). Lastly, digitization and visualization entail cloud computing, mobile computing, and social media, and these are utilized for the effective management of construction tasks (Maresova et al. 2018;Oesterreich and Teuteberg 2016;Alaloul et al. 2018). These dimensional value chains are key to successful managerial operations in the construction industry that will facilitate organization growth. In specific terms, the benefits and challenges of IR 4.0 for the construction industry are highlighted in Figure 1 and we have rephrased them as follows.
The benefits are as follows: The aforementioned factors indicate that the merits of IR 4.0 to construction clearly outweigh the demerits, from continual gains to decision making and managerial efficiency that are obtained as a result of "smart production" (Liu et al. 2018). The complexity of construction will further enhance massive investments in R&D that will further transform the industry to the next level of revolution.
Within the above findings, the authors are aware of the possible limits caused by our research method. Some of the activities, benefits, and challenges in the management view of Industry 4.0 may have been neglected due to the search method. Attention was focused on keywords from management tied directly to construction and Industry 4.0. However, there may be benefits found in management areas that are widely used in the construction industry, such as in project management. On the other hand, the results of the study also point out that this sector is not yet sufficiently researched in the context of current management trends. The benefit of this study is a summary of the current state of knowledge and the challenges in management of construction industry.

Conclusions
This study found that the majority of the articles used for synthesis employed systematic and scoping review techniques to display the importance of IR 4.0 to the construction industry. The technique used assisted these articles in showing the opportunities that innovations, R&D, and cloud computing afford to management decision making, investment management, project preparation, and project assessment in the construction industry.
Despite the enormous efficiency impetus that technologies, innovations, and IoT give in terms of the smartness of the managerial functions in the construction industry, their adoption is still in its infancy; particularly in low-income countries, in which per capita income is minimal and unevenly distributed among members of society. Thus, traditional (manual) production lines and management operations are still largely employed given the high cost of technology adoption in low-income countries, but these are relatively well adopted in high-income countries. In most underdeveloped countries, construction activities were engaged more with manual labor given the availability of cheap labor and the high unemployment rate.
Therefore, stakeholders in the construction industry are advised to engage more in terms of investment in STIs with innovators to enhance cheap technologies that will promote the adoption of inclusive "smart production and management" in the construction industry.
For the best performance of managers, the adoption of technologies is key to the optimal operation of the construction industry. Adequate skills for utilizing the technologies are required, thus necessitating technological transfers in the form of labor development, skills transfer, training, and retraining to fully explore the capacity of new technologies for improved management performance.
Industry 4.0 is a brand-new philosophy bringing social change and affecting areas from security, education, science, the labor market to the social system. In the construction industry, the managerial perspective is addressed from several aspects, such as management decision making, investment management, and project assessment. However, management optimization models at the company level remain a challenge for future research. Modern enterprise solves not only the question of self-production but also an attendance system and energy. The interoperability of the individual parts of the process should be addressed at the optimization plan level. Service can also be remotely addressed. The construction market in developed countries suffers from a lack of labor force. This problem may be solved by an up-to-date method "age management". This managerial approach searches for potential workers among older people. Another point for follow-up research could be open communication and a knowledge of cultures. At the 2015 "The Fourth Industrial Revolution" meeting (World Economic Forum Annual Meeting 2015), it was said that, thanks to modern technology, communication at a global level and in the digital environment is commonplace, and openness and respect for other cultures needing to communicate with each other has become one of the preparations for technological progress.