Abstract
Advancements in robotic technology have accelerated the adoption of collaborative robots in the workplace. The role of humans is not reduced, but robotic technology requires different high-level responsibilities in human–robot interaction (HRI). Based on a human-centered perspective, this literature review is to explore current knowledge on HRI through the lens of HRD and propose the roles of HRD in this realm. The review identifies HRD considerations that help implement effective HRI in three human-centered domains: human capabilities, collaboration configuration, and attributes related to contact. The eight HRD considerations include employees’ attitudes toward robots, their readiness for robot technology, communication with robots, human–robot team building, leading multiple robots, systemwide collaboration, safety interventions, and ethical issues. Theoretical implications, practical implications, and limitations are discussed. This paper contributes to HRD by introducing potential areas of multidisciplinary collaborations to help organizations implement robotic systems.
People have long imagined robots that act like humans. In science fiction, some robots looked like humans and some did not, but all the robots could think by themselves and outperform humans in many aspects. Is reality close to these science fiction depictions? Robots are already used in many areas of society including in the military, hospitals, factories, stores, and homes (Chuang & Graham, 2018). The pace of robot development has been faster than expected with technology advancements in computer science and engineering. Development grew at an even faster pace during the COVID-19 pandemic when human-to-human contact was restricted (Lund et al., 2021). It is apparent that robotic technology will increasingly impact people’s lives with more interactions between humans and robots (Losey et al., 2018).
Human–robot interaction (HRI), as an emerging area in robotics, has received multidisciplinary interest and has critical potential in human resources. HRI is halfway between traditional manual systems operated by humans and fully automated robot systems (Bruno & Antonelli, 2018). Many industries have introduced semiautonomous robotic systems that require active human involvement. For example, Melecs, an electronics company, recently adopted small robot arms that work together with employees to perform monotonous and time-consuming tasks in the circuit board packing process (Universal Robots, 2021). SSI Schaefer, a logistics firm, increased the number of delivery robots for collaboration with employees in arranging, lifting, and delivering goods in their warehouses (Francis, 2018). In addition, in 2018, about 15% of all surgical procedures in the United States were conducted using surgical robots that assist or collaborate with surgeons (Sheetz et al., 2020).
Despite the increased use of semiautonomous robots in the workplace and the substantial impact on organizations, little is known about how HRI relates to human resources. Interaction processes and outcomes between humans and robots are different from human to human interactions as well as between humans and traditional machines (Tsarouchi et al., 2016). The fast advancement of robot technology and pressure to apply this technology to work systems can cause organizational confusion, errors, and anxiety due to the gap between technology development and organizational practices (Beane, 2019).
In human resource development (HRD), the emergence of virtual HRD opened the door to an ecological perspective of technology (Bennett & McWhorter, 2021), but research has tended to see technology as a tool or a solution for effective HRD activities rather than as a new business context that requires strategic support from HRD (Li, 2016). Moreover, HRD papers related to robots have hastily regarded robotic technology only as fully automated systems in the workplace focusing on the impact on society and the entire workforce rather than on individual employees and organizations (Beer & Mulder, 2020; Chuang, 2021; Mulder & Beer, 2020; Vrontis et al.). The evolving nature of HRD should guide strategic reflections on the changing business environments including new technology (Mitsakis, 2019). HRI will affect organizations as a whole from individual employees to the entire system. To realize the competitive advantage of HRI, organizations should enhance employee skills and abilities to work with robots, maximize the effectiveness of human–robot teams, and build managerial systems that foster institutional synergy while preventing safety and ethical issues that could result from HRI.
Given that human roles are not reduced but require different high-level responsibilities when working with robots (Hirche & Musić, 2017), HRD research can make important contributions to this new type of work system by guiding employees and organizations. As a fundamental step, this literature review is to explore current knowledge on HRI through the lens of HRD and propose the roles of HRD in the workplace. In this paper, HRD is defined as activities and processes that produce positive outcomes through training and development and organization development (Swanson, 2001). The scope of HRI is limited to collaborative robots that perform difficult tasks or assist humans as the most representative and typical form of HRI in the workplace (Hirche & Musić, 2017). Human–human interactions are out of the scope of this paper although multiple employees may work together in a human–robot workgroup. The research question guiding this review is, “What are the HRD considerations from a human-centered perspective that guide employees and organizations in an HRI system?”
Little work in HRD has explored teams working with robots; therefore, many HRD scholars and practitioners lack the knowledge they need for effective HRI. This review contributes to our understanding of how robotic technology affects organizations and what HRD can do in a new work phenomenon of HRI. The findings of this review can guide workforce development plans and policies related to public and private training and education agencies and practitioners as they adjust to technological changes. This review will also help HRD scholars recognize multidisciplinary collaboration opportunities in robot-related research projects by introducing potential applications and the value of HRI.
Theoretical Background
Human Interactions with Robots
Although the term robot has numerous meanings, a general consensus is that the autonomous nature of robots distinguishes them from non-robot machines. The Institution of Electrical and Electronics Engineers (IEEE) regards a robot as an autonomous machine that senses, computes, and acts in the real world although the degree of the strictness in the three elements varies by scholars (Guizzo, 2018). The development of artificial intelligence (AI) has advanced the capabilities of the three robot elements and led to various types of robotic systems including HRI (Sheridan, 2016).
HRI, defined as a multifaceted area to “understand, design, and evaluate robotic systems for use by or with humans” (Goodrich & Schultz, 2007, p. 204), focuses on how humans are interconnected with robots in terms of the robot elements. Although HRI is not a recent concept, research on operational practices has been rare until recently due to the autonomy and safety capacity of systems (Charalambous et al., 2017). Since robots can be used in many unique circumstances, the features of HRI are also diverse. For example, with social robots that typically resemble a pet or human, HRI is likely to enhance communication and mutual responses so people can build social and emotional relationships with robots (Young et al., 2011). In contrast, robots in the workplace perform assigned tasks or help employees improve task efficiency and productivity while reducing employees’ stress and workload (Tsarouchi et al., 2016). This paper focuses only on HRI in the workplace in which humans and robots team up in dynamic work settings (Schou et al., 2018).
Industry 4.0, a digital and technological revolution that is transforming our lives and work (World Economic Forum, 2016), has stimulated collaborative production with robots, (Bruno & Antonelli, 2018). Collaboration with robots is growing quickly and will greatly affect the workplace in the near future. According to the International Federation of Robotics (2019), the number of collaborative robots increased by 61% in 2017–2018. Loup Ventures (2017) anticipated that by 2025, collaborative robots will constitute at least one-third of all robots. Representative examples of collaborative robots are robot arms, automated guided vehicles (AGVs), and surgical robots. There are several organizational advantages of using collaborative robots. First, compared to traditional industrial robots that require considerable investment for independent work systems, collaborative robots are more affordable, even for small- and medium-sized enterprises (Zanchettin et al., 2018). Second, collaborative robots improve organizational performance and creativity through human–robot synergy and task flexibility (You & Robert, 2017). Third, thanks to developments in computer science, collaborative robots with advanced AI have become safer and more reliable so employees can use them for various tasks with fewer safety concerns (El Zaatari et al., 2019). Fourth, the use of collaborative robots can limit the potential reduction of the workforce since the systems still mostly rely on human resources (Zanchettin et al., 2018). Since collaborative robots require human–robot interaction as the distinguishing feature, HRI scholars have paid increasing attention to how humans and robots can effectively work together.
In performing HRI, a key concern is human–robot synergy that maximizes the capacities of both humans and robots (Beer et al., 2014). Scholars have suggested that humans’ knowledge, skills, and abilities in working with robots and HRI are vital because the robots are not yet autonomous enough to control or compute the variability of complex work processes and settings, especially when humans are involved (Bruno & Antonelli, 2018; Hashemi-Petroodi et al., 2020). In addition, as the number of robots increases and the types of robots become more diverse, quality human resources play a crucial role in successful collaborations and decision-making processes (Hirche & Musić, 2017; Tsarouchi et al., 2016).
Human-Centered Perspective
A foundation of this paper is a human-centered perspective in that employees play a key role in and benefit from HRI. Unlike a traditional perspective on technology that prioritizes algorithms, information processing, and mechanical functions over human activities and impacts, a human-centered perspective considers a larger system with both social (i.e., human interactions) and technical systems (Gasson, 2003). Therefore, any technical approach and solution should be humanistic (Xu, 2019). Popular discourse from a human-centered perspective is about the social impacts of technology like job loss and artificial intelligence threats (Bae, 2015; van Wynsberghe & Comes, 2020). However, empirical research has mainly dealt with changes in the role humans play and the improved performance at the task level and work-unit level (Matheson et al., 2019; Nikolaidis et al., 2015; Oliff et al., 2020). Because humanizing should be considerate of humans for the aim or end product of their work, it can be interpreted that technology should be ready-to-use and human-friendly (Sciutti et al., 2018). However, overemphasis on this view can lead to the belief that humans do nothing to adapt to technologies but technologies have to meet the needs of humans (Broadbent, 2017).
A cutting-edge human-centered perspective focuses not only on social expectations that shape and guide technology but also on systems that support meaningful and enriched work and new ways of understanding how to make the technology more useful and effective with humans (Fiebrink & Gillies, 2018; Persson, 2017). Human involvement and activity should be ensured throughout the design and implementation process (Persson, 2017). Thus, in HRI, it is necessary to determine how humans effectively and meaningfully collaborate with robots so the work processes and outcomes meet the needs of individuals and organizations. From a human-centered perspective, HRI requires human commitment (Adami, 2015; Losey et al., 2018), capability (Prewett et al., 2010; Soh et al., 2020), and fulfillment (Smids et al., 2019).
Links between HRI and HRD
Considering the critical impact of technology, an effective use of robots is a key driver for many organizations. Organizational performance and development depends on how all of the systems interact with new technologies and how the units of the organization are interrelated as dynamic and open entities for change (Nadler & Tushman, 1980; Teece, 2018). As Hughes (2010) and Bennett (2014) highlighted, technology development should not be separate from developing human resources and adopting new technologies. Thus, technology development requires both managing and developing the technological expertise of employees and organizations. HRI is related not only to changes in individual employees but also processes at the group and organizational levels since changing one component of an organization leads to subsequent changes in other components (Král & Králová, 2016). The adoption of HRI should follow systematic approaches of HRD at the individual, group, and organizational levels.
Method
I systematically reviewed the HRI literature to identify HRD considerations that guide employees and organizations in an HRI system. The literature search was conducted using the Web of Science database. Web of Science is convenient and has good coverage of high-quality journals and proceedings in the field of natural science (Li et al., 2018; Visser et al., 2021). Unlike social science, the use of Web of Science in natural science is rapidly growing and becoming a common source for literature reviews (Mongeon & Paul-Hus, 2016). Given that the author’s background is not robotics, using a widely used database that provides high impact literature provides credibility for this review.
The initial search yielded 5689 papers using the keywords “human-robot interaction,” “human-robot collaboration,” and “human-robot communication.” Selection of the literature for this literature review included three rounds. First, documents were screened out based on criteria including document type, language, publication year, research area, and focused topic. Specifically, the selection was limited to journal articles, conference papers, and book chapters written in English in the areas of robotics, engineering, and automation control. The selected literature was limited to publications from 2006 to 2020, as the HRI research and conceptual debates began to proliferate after the IEEE Conference on HRI in 2006. Papers related to social, home, and service robots and humanoids were excluded since they were not relevant to the topic of this paper. The first round generated 344 papers (205 journal articles, 134 proceedings papers, and five book chapters). Second, I briefly examined the title, abstract, and findings, focusing on whether they involved human activities. In this round, I excluded studies that dealt with programing and developing a system or robotic experiments designed for humans (e.g., testing a facial recognition or motion sensor system), but did not involve humans in the research. The third round included checking the references of the searched literature. An additional 18 papers that the search system had failed to detect but that satisfied the criteria of the first two rounds were added to the review list. Most of these newly added papers were from interdisciplinary fields. The final sample included 67 papers (55 journal articles, 10 proceedings papers, and two book chapters).
For analysis, I first inductively analyzed the selected papers using a qualitative research approach (Patton, 2014). I thoroughly read the papers focusing on human-centered approaches, human behavior changes, and human involvement in HRI. I then created a spreadsheet with key passages and coded them by identifying themes in the text. I again reviewed the passages line-by-line several times to ensure validity and reliability of the results. After the initial coding, I carefully re-read the passages to merge, eliminate, and rename the codes, which resulted in 46 codes. The codes were then categorized into eight themes of HRD considerations, which were grouped into three human-centered domains of HRI. Because the coding was fully inductive without using a pre-existing frameworks or categories, I revisited the codes several times until the categories adequately addressed the research question and had the same level of specificity and importance. Finally, I labeled the categories to represent the meaning of the units at the same level. Figure 1 shows the final codes, themes, and domains. Analysis of the HRI Literature. Note. Some codes and themes are linked to multiple themes and domains.
Findings
Several HRI features have important implications for HRD in terms of how employees collaborate with and manage robots. Human capabilities, collaboration types, and work settings are closely related to the performance and well-being of individuals and organizations. Eight HRD considerations emerged in three domains of HRI that are associated with human activities and development.
Human Capabilities
How employees prepare for HRI and what they do to collaborate with robots is a key interest of HRI. From a human capabilities perspective, scholars have emphasized the stance of employees in the HRI process, which affects performance (Moniz, 2014; Prewett et al., 2010) and how the employees address challenges (Dobra & Dhir, 2020). For example, attitudes toward robots and skills to interact with robots are important human competencies in HRI (Hancock et al., 2011; Sheridan, 2016). Human capabilities are also important when greater uncertainty exists, such as complex interactions and a lack of autonomy in the robotic system (Oliff et al., 2020). Compared to novices, experienced employees who understand robots and the HRI process are likely to make better decisions in the control loop (Gombolay et al., 2017; Hirche & Musić, 2017). In this regard, HRD considerations for HRI include human attitudes, readiness, and communication (learning).
Attitudes Toward Robots
How people perceive robots is critical for HRI because negative attitudes can make employees avoid robots (Nomura et al., 2006). Although public opinions about robots in the workplace are mostly negative due to the threat to jobs and roles (Gnambs & Appel, 2019), employees’ feelings about their robot partners tend to be more favorable than the public’s perceptions, in general (Kahn et al., 2011). Attitudes toward robots are likely to depend on each employee’s individual background, experiences, and abilities (Hancock et al., 2011). For example, technology savvy and robot-literate individuals are more open to having interaction with robots (Bartneck et al., 2007; Soh et al., 2020).
Research has also paid considerable attention to trust, which focuses on how well people accept robots and believe that they can be fully committed to a robotic system to achieve a goal (Kim et al., 2020; Soh et al., 2020). In the workplace, the importance of trust lies in transparent collaboration in which employees willingly recognize the information that robots provide, accept suggestions from robots, and predict interactions (Hancock et al., 2011). Although robot performance is the main factor affecting trust in HRI (Kim et al., 2020), there are also human-related and environmental factors such as individual experiences and expertise, group tasks for collaboration, and organizational policies related to integrity and safety (Natarajan & Gombolay, 2020; Sanders et al., 2019).
Another group of researchers has focused on anthropomorphism in which transmission of human-like attributes to robots may increase the acceptance of robots (Damiano & Dumouchel, 2018) and improve collaborative performance (Fraune, 2020; Natarajan & Gombolay, 2020). While positive attitudes are expected to reduce employees’ cognitive workload and lead to more commitment to HRI, overreliance can undermine the value of HRI (Natarajan & Gombolay, 2020; Rahman & Wang, 2018). The role of HRD should be to evaluate the effects of employees’ attitudes about HRI and ensure a positive experience when working with robots through organizational activities and interventions such as orientation, small pilot tasks, virtual training, and job opportunities.
Technology Readiness
Given that a new industrial method is typically applied based on users’ capabilities, employee readiness is a key consideration in HRI (Charalambous et al., 2017; Gombolay et al., 2017). Parasuraman (2000) defined technology readiness as preparedness and willingness to accept and use new technologies to achieve goals at work. With low readiness, employees are likely to feel insecure about and uncomfortable with new technologies, which could lead to low motivation and productivity (Islam et al., 2019; Parasuraman & Colby, 2015). In contrast, high readiness could help employees have a positive view of technology and efficiently manage it for their jobs. Individual characteristics and organizational support are key elements in enhancing technology readiness (Blut & Wang, 2020).
Charalambous et al. (2017) developed a systematic model for technology readiness in HRI based on NASA’s evaluation scale (Mankins, 2009). In their model, low levels of readiness are related to identifying and recognizing the basic principles and concepts of robots. Middle levels of readiness include a clear understanding of the process and complexities of HRI, allocating the necessary resources, and understanding the place of employees in the actual workplace of HRI. A high level of readiness is where actual production begins, and employees are given discretion over operations and handling system errors. Given that failed technology implementation is often caused by a lack of human capabilities (Abdelaal et al., 2020; Hentout et al., 2019), it is crucial for organizations to provide appropriate training, organizational support, and senior management involvement to increase employees’ level of readiness.
Communication With Robots
Effective HRI requires a clear understanding of the behaviors and anticipation of the intended purposes for both humans and robots (Hentout et al., 2019). Thus, humans and robots need mutual communication. Robotic research has focused mainly on robots’ capability to be aware of and react to the intent of the human operators through sensory and voice-command devices (Makrini et al., 2017). The development of AI and machine learning (i.e., a method to improve AI through experience and data) enables robots to learn better. Through recent advancements, robots are starting to instantly and accurately recognize their human partners’ intent and appropriately respond to variations in human behaviors (Oliff et al., 2020). However, fluent mutual communication between humans and robots enhances the effectiveness of HRI in a similar way to open communication among humans, which is a key for team performance (Villani et al., 2018).
For effective communication, employees are expected to play two roles. One is to be aware of and learn robots’ behaviors (e.g., actions, work processes, and outcomes) and the other is to teach and guide robots by providing demonstrations, feedback, and reinforcement (Sheridan, 2016). In their experimental study, Nikolaidis et al. (2015) revealed that mutual learning about the roles humans and robots should play increased the performance of a collaborative task. Bidirectional human–robot communication led to improved mutual adaptation for humans and robots in their collaborative tasks compared to single-direction communication (Nikolaidis et al., 2017). Therefore, developing effective communication skills with robots, which is different from a human-to-human setting, will be a new but key area of HRD for HRI.
Collaboration Configuration
The literature showed that in collaborations with robots, task dependence and sequences create new forms of work. In their early theoretical paper, Yanco and Drury (2004) described eight combinations of HRI by considering the different number of humans/robots (single vs. multiple) and their dynamics (direct vs. indirect). Dealing with human–robot dynamics, El Zaatari et al. (2019) divided how humans interact with robots into four types (i.e., independent, simultaneous, sequential, and supportive) based on whether the employees and robots worked in the same workspace and concurrent processes. Organizations need a novel design for each type of team, which is different from human-to-human collaboration (Hirche & Musić, 2017) because tasks and authority may differ by collaborative assignments and roles in HRI (Prewett et al., 2010). Given these differences, group tasks and communication approaches should be clarified for effective collaboration with robots (Matheson et al., 2019). Organizations may need different approaches for leading a mixed human-robot team, which requires an understanding of both the employees and robots (Hirche & Musić, 2017; Moniz, 2014). Thus, HRD should consider various collaboration contexts of HRI.
Human–Robot Team Building
Human–robot teams are expected to recognize the team capacities of different units (humans and robots) and establish ways to improve group processes based on key elements of team building including goals, roles, and member relations in the team. Based on team building components, first, goal setting for human–robot teams may require identification of the individuals’ capabilities, task allocation, and resources for collaborative tasks (Gombolay et al., 2017; Sheridan, 2016). In addition, humans and robots have different skills and abilities that should be considered in individual and group goal setting (Bruno & Antonelli, 2018). Although workload balance may not be a critical issue in human–robot teams, too heavy or too light of a human workload can have a negative impact on individual well-being and team performance (Gombolay et al., 2017). The decision making for collaborative tasks should be based on the definitions of the tasks and human–robot team capacity (Tsarouchi et al., 2017).
For role clarification in a human–robot team, individuals should understand their own and other team members’ (humans and robots) tasks and duties (Hentout et al., 2019). Team communication should be a two-way interaction so both humans and robots are clearly aware of the other in terms of roles, work progress, and upcoming objectives in collaborative tasks, including learning robots’ jobs, teaching human jobs to robots, and role switching between humans and robots (Nikolaidis et al., 2017; Whitsell & Artemiadis, 2017). Although role-clarification activities may not lead to a positive experience for humans (e.g., cognitive and emotional pressure), they may help build trust between humans and robots through improved communication (Nikolaidis et al., 2015). Human–robot team performance also increases when members proactively assist, guide, and work together with other members rather than reactively participating in collaboration only when needed (Baraglia et al., 2017).
Human relationships with robots relate to teamwork skills and synergy. Fraune (2020) found that although humans tend to favor humans over robots, humans accept and treat robots as in-group members when they work together. Like in human teams where relationships among members depend on how they interact with each other, research has indicated that active human–robot communication and strong human trust are crucial factors that influence human relationships with robots and eventually increase the performance of human–robot collaboration (Hentout et al., 2019; Nikolaidis et al., 2015). Organizational support and interventions to adapt to working with robots will help employees develop relationships with robots and learn how to treat their robot partners.
Leading Multiple Robots
To effectively lead a team with multiple robots, it is important to solve problems that occur within the team just like in a human work team. In a human–robot mixed team, problems between humans and robots may be addressed by ensuring proper execution of goal setting, role clarification, and relation development. The performance of a team that involves multiple robots depends on the leader’s role, which is likely more salient when the robots are different from each other (Prewett et al., 2010). Several researchers have also emphasized the importance of human skills in multirobot systems because of the complex variations that cannot be anticipated or pre-treated (Adams, 2009; Hirche & Musić, 2017; Oliff et al., 2020). To effectively deal with problems that impact performance, a team with multiple robots requires agile approaches, such as establishing the decision-making process, delegating problem-solving actions, and developing robot management skills (Abdelaal et al., 2020; Moniz, 2014). HRD approaches to leading multiple robots may include enhancing employees’ leadership and management skills for robots through training programs and learning sources and providing relevant experiences.
Systemwide Collaboration
HRI involves far more complicated processes and activities than operating machines or using fully automated robots. For effective management and development of HRI, organizations are encouraged to practice multifaceted approaches by reconsidering the whole work system including decision processes, flexibility, guidelines, and policies (Moniz, 2014). In this regard, van Wynsberghe and Li (2019) proposed a novel approach for operators (employees), developers (engineers), and management to help them intensively and systematically collaborate, optimize effectiveness, and safeguard employees. In HRI, an essential consideration is likely to be the transparent incorporation of various stakeholders’ characteristics (Vrontis et al.), such as the operator’s experiences and needs, the developer’s expertise and design intention, and the management’s system perspective and production objectives. For effective systemwide collaboration, HRD should play a coordinator role that links the various actors and aspects. Coordinating functions may include observing robots and their performance, sharing feedback with robot developers on robot operation, developing employee competency for more effective collaboration with robots, and ensuring the well-being and satisfaction of employees (Thomas et al., 2018).
Attributes Related to Contact
HRI also varies by humans’ physical distance from robots and the sensory capability of robots. Because human roles and applications differ by the amount of contact between employees and robots (Goodrich & Schultz, 2007), organizations should consider various scenarios and consequences for employees (Benos et al., 2020). For example, human–robot proximity is directly related to organizational safety and health (Zacharaki et al., 2020). A lack of confidence in sensory systems for physical contact also causes concerns about working with robots (Dobra & Dhir, 2020). Another issue is maintaining confidentiality of the data obtained from robots’ sensory functions and machine learning (Fletcherd & Webb, 2017). The related HRD considerations were grouped in safety interventions and ethical issues.
Safety Interventions
Safety is another important consideration in a workplace with robots. Unlike a conventional setting with machines and large industrial robots that mainly require physically isolating employees from unexpected contact with the machines, HRI requires more specific and complex management because physical contact is necessary (Benos et al., 2020). To take full advantage of employees’ performance and to maximize the effectiveness of HRI, safe interactions should be guaranteed (Villani et al., 2018). The field of HRI has recognized the importance of protecting employees against accidents and injuries and, therefore, has devoted considerable attention to designing safe and reliable operation environments and systems. The efforts related to safety guidelines include International Organization for Standardization (ISO) standards that are specific to industrial environments (ISO 10218: 2011), personal use (ISO 13482: 2014), and collaborative robots (ISO/TS 15066: 2016). Literature has also sought to design systems (e.g., control systems and motion/collision detection) to ensure collaboration without sacrificing operation speed and separation from robots (Saenz et al., 2020).
The causes of accidents in HRI can be categorized as engineering errors, human errors, and poor environmental conditions (Vasic & Billard, 2013). Although the last two categories are due to human factors (e.g., inattention, fatigue, neglecting safe procedures, inadequate training programs, and incorrect procedures), the literature has focused predominantly on the first category: engineering errors. Few studies have dealt with a human-centered perspective of safety, and the focus has been limited to employees’ perceptions of robots (Zacharaki et al., 2020). Given the need for organizational effectiveness based on safety interventions (Robson et al., 2012), HRD should contribute to and take the lead in developing and conducting safety interventions, especially when risk exposure severity is high (Burke et al., 2011). For example, safety training sessions and safety awareness tools help employees learn and practice safe behaviors. In addition, a psychological safety assessment will allow organizations to monitor employees’ safety concerns and feelings about working with robots. Well-established systems, standards, and employee awareness will also help avoid safety-related disasters, enhance employees’ trust in working with robots, and result in better collaborative performance (Maurtua et al., 2017; You & Robert, 2018).
Ethical Issues
Robot ethics has received increasing attention in various disciplines including engineering, computer science, law, psychology, and philosophy. The aspects of robot ethics have mainly focused on how to design, deploy, and treat robots, which requires the development of moral competences (Malle, 2016). Most studies on robot-related ethics have focused on the human impact of social and domestic robots (Lin et al., 2011; Smids et al., 2019). However, the ethical implications of HRI in the workplace have not been sufficiently explored. Thus, there is little understanding of what human and organizational issues could occur when there are immoral practices or ignorance of appropriate actions in collaborating with robots (Fletcherd & Webb, 2017).
I identified two approaches to address ethical concerns in HRI. First, organizations need to establish ethical systems and environments to protect employees in HRI. Employees should have sufficient information about robots and full awareness of the code of behavior and risks (Fletcherd & Webb, 2017). Employees who have little trust in robots should not be pushed into HRI work settings because distrust may overwhelm them and deteriorate their well-being (Kim et al., 2020; Rahman & Wang, 2018). In addition, the data that robots generate and collect should be stored and used ethically with a rigorous protocol to protect privacy (Lee et al., 2011).
The second approach is that organizations should guide employees to properly treat and manage robots. A clear standard for working with robotics helps employees understand appropriate behaviors toward robots and their own human rights and responsibilities in HRI (Lin et al., 2011). Organizations should also be aware of immoral applications of robots, such as inappropriate teaching/programming for malevolent purposes, hacking other robots, sharing unnecessary sensitive information with robots, and social loafing when employees shift their work to robots (Bonaci et al., 2015). HRD should lead initiatives for HRI ethics by educating and training employees and be resourceful in establishing an ethical culture and system in the organization.
Discussion
This literature review identified eight HRD considerations in three HRI domains that guide employees and organizations in an HRI system. From a human-centered perspective, the analysis highlighted key themes related to HRI that HRD should consider for employees and organizations. As an emerging work context, HRI has not been explored in depth in terms of both the impact of HRI on employees and the impact of employees on HRI. Although most HRI research has attempted to solve issues and improve performance by developing the capacity of robots (e.g., physical features and algorithms) from a robot perspective, scholars agree that effective HRI is achieved by considering both humans and robots (Charalambous et al., 2015; Dobra & Dhir, 2020; Gombolay et al., 2017). HRD considerations are wide-ranging from individual capabilities to organizational systems, which are closely related to key areas of HRD. Figure 2 shows what HRD should consider to improve HRI at the individual, group, organizational levels, and how the considerations are interrelated. For example, employees’ readiness and communication skills are important for their comfort level in HRI and mutual reliability in human–robot team building. The collaboration design, safety, and integrity of HRI are also based on employees’ attitudes toward robots (Hancock et al., 2011; Kim et al., 2020). HRD considerations for HRI.
This paper contributes to our understanding of what HRD can do for organizations to maximize the effectiveness of robotic and automation technologies in HRI. Interdisciplinary collaboration is vital for developing related theories and applying them in practice by working with not only computer science and mechanical engineering but also other applied disciplines such as educational technology, ergonomics, medicine, industrial psychology, and management. HRD needs to continue to focus on how to apply technologies and their integration to develop employees working in a collaborative HRI context (Li, 2016). Further scholarly efforts are needed to explore human aspects and design applications, and to examine the impact on individuals, groups, and organizations.
Implications for HRD Theory
According to Bennett (2014), there are two theoretical application modes for technology in HRD: technology to support HRD activities and technological changes that need HRD support. The latter mode is related to strategically embracing changes. However, scholarly interest in technology advancement has mainly focused on how to apply new tools in learning and development (Li, 2016). In the same way that digitalization has led to virtual HRD, HRI is another fundamental transformation in the workplace that requires the strategic involvement of HRD rather than simply updating automated work systems. With the increased adoption of HRI, researchers are urged to rethink previous theories developed for traditional human–human settings and reflect the reality of new human–robot collaborations in the workplace (Broadbent, 2017; Leichtmann & Nitsch, 2020). Therefore, HRD scholars should carefully examine HRI activities and conceptualize how to maximize the new roles and collaboration. Based on the findings of this paper, I identified four theoretical HRD areas that are highly relevant to the eight considerations for HRI: psychological capital, workplace learning, organizational learning, and organization systems model.
Psychological Capital
Working with robots introduces attitude challenges in human–robot relations. For effective communication and collaboration with robots, employees need positive attitudes toward robots. Organizations with employees who are reluctant or unprepared to interact with robots may need organizational accommodations and developmental remedies. Given that a positive mental state is related to in-group approaches and relationships (Avey et al., 2011; Chen et al., 2019), human perceptions and behaviors related to HRI correspond to psychological capital theory. Psychological capital requires psychological resources (e.g., confidence, optimism, and resilience) and promotes growth and development of individuals, all of which contribute to employee well-being and performance (Luthans, Youssef, & Avolio, 2006). The role of HRD in promoting psychological capital and positive employee behaviors involves building a culture of trust, promoting reciprocity, and implementing ethical standards in the organization (Luthans et al., 2006). Although psychological capital originally focused on employees’ work settings, HRI requires a new application of the process. Specifically, for employees with traditional tools, HRD has focused on improving the culture and interactions among employees. However, as humans increasingly work with robots as colleagues in HRI, it has become more important to focus on the significance of human perceptions toward robots. The same importance of developing a positive culture in human–human relations also applies to human–robot relations. Through trusting, ethical, and safe interactions with robots, employees will be confident, optimistic, and resilient as they work with robots, robotic systems, and human–robot relations, which, in turn, will result in effective HRI. Thus, an expanded theory that considers human–robot relations can be newly added in HRD which will help scholars and practitioners better understand how positive attitudes are shaped in HRI and how HRI affects the workplace.
Workplace Learning
Collaboration with advanced AI-based robots suggests a mutual learning model that includes how employees communicate, learn, and train their collaborative robots. To date, HR scholarly interest in AI technology has focused on how to utilize machine learning for HR activities, such as assessing individuals, predicting performance, identifying training needs, measuring training effectiveness, and identifying teamwork patterns (Garg et al.; Mulder & Beer, 2020). This approach exemplifies how scholars view technology as a supporting tool in Bennett’s (2014) typology. However, the reality of HRI is the assumption that there are mutual influences between humans and robots that involve more than humans using machines. Recent scholarly attention has focused on the trainer’s (human employee’s) role in an HRI environment since robot intelligence improves as robots learn from humans. In human-to-robot training, Ramos et al. (2020) underscored that the training capabilities and subject-matter expertise of humans are critical for machine learning and building AI models. Learning about robots includes not only obtaining skills and knowledge about robotic technology, but also understanding their behaviors for appropriate reactions (Sheridan, 2016). The mutual learning model may open up a new learning realm that relates to developing human competencies for learning and training robots and an AI improvement process of teaching, coaching, and guiding robots.
Organizational Learning
The broad impact of HRI on HRD suggests that scholars and practitioners need to rethink learning at the organizational level. The core of organizational learning is adjusting to a change in the organization at the individual, group, and organizational levels and fostering knowledge creation and learning (Argote & Miron-Spektor, 2011; Nonaka, 1994). Learning experiences from a new technological system such as HRI will restructure the existing knowledge and help create a new culture and structure (Popova-Nowak & Cseh, 2015). However, unlike a traditional organizational learning model in which information is obtained and evolves from internal activities among individuals, organizations with HRI may require different approaches to learning. These organizations may seek to extend their technological knowledge and learning capabilities from external sources, such as M&A, outsourcing, and talent acquisition (Argote & Miron-Spektor, 2011). Given that sources of state-of-the-art knowledge like robotic technology are very scarce, organizations may rely on a broad range of online expert communities or publicly shared resources on the internet (e.g., YouTube) to increase robot technology readiness and obtain more up-to-date knowledge despite the security and validity risks (Bean, 2019).
Virtual HRD (i.e., a digital environment to improve the expertise and performance of employees and organizations) requires non-traditional sources of learning through informal methods and plays an important role in organizational learning about technology (Bennett, 2014). Similarly, with increased HRI, strategic, smart, and legitimate uses of technology-mediated learning have become critical for businesses (Thite, 2022). Therefore, HRD research should pay increased attention and establish new theories for organizational learning practices related to new technology and related challenges. For HRI, organizational learning processes are more complicated because HRI knowledge is created by both employees and robots through their interactions, and the knowledge is interpreted and analyzed by multiple stakeholders (e.g., employees, engineers, programmers, managers, HRD practitioners) to transfer the knowledge to other work units and projects. Organizational learning in HRI should not only be flexible but also robust to create and safeguard information obtained from numerous sources.
Organization Systems Model
From an organization development perspective, AI and HRI robotic technologies, as a push factor of change, impact major design components of organizational systems (Nadler & Tushman, 1980). Technologies are likely to affect the individual- or group-level performance, and the impact of the fundamental changes brought on by HRI affects the whole organization. This paper identified key HRD considerations for HRI at the individual, group, and organizational levels. At the individual level, a new competency model of employees is required given the knowledge, skills, and abilities needed for HRI. Ensuring job enrichment of these employees is a critical concern because HRI may affect employee satisfaction and well-being. At the group level, goal setting and task design approaches may change because of the new work boundaries between humans and robots and because the definition of group membership is becoming blurred. At the organizational level, the need for systemwide collaboration among operators, developers, and management requires a novel organizational structure. Human resource systems require new mechanisms for deploying, developing, and assessing both humans and robots. The inter-relatedness among the HRD considerations within levels and across levels indicates that HRI affects the whole organizational system. Thus, the organizational changes and impacts of HRI should be understood through the lens of the systems model.
Implications for Practice
This paper raises important questions about robot-related competencies and HRD roles. HRD practitioners should recognize the impact of robotic systems on employees and organizational systems and consider systematic approaches to HRI so they can be strategic business partners for their organizations. HRD practitioners may pay a high price if they implement previous interventions without customizing their previous approaches. Practitioners should be careful about adopting practices from human-to-human settings, as has often been the case in HRI settings. Organizations need to pay attention to HRI-specific research with clear implications for how certain HRD practices will be effective in HRI settings. They should also be aware of human–robot settings and reflect HRI knowledge in their HRD interventions. A pilot test may be necessary to determine if the newly developed practices work well in HRI settings. HRD should also be more agile and responsive so employees and systems can quickly prepare for HRI and receive timely support. Beane’s (2019) findings on the side effects of incorporating new robots implies that HRD practitioners should proactively and immediately react to the new HRI work setting to reduce confusion and employees’ struggles as they adapt to and learn the new technology and environment.
Limitations and Future Research
There are several limitations. First, due to the introductory and exploratory nature of this phenomenon, this paper simplified the dynamics and impacts of HRI. Considering the complexity of HRI in practice, there will likely be adverse effects when organizations adopt HRI. Future research may focus on alerting HRD professionals to the negative impacts of HRI on employees, organizations, and society. The findings should suggest HRD roles from a different perspective. Second, this paper lacks specific guidelines to support HRD influences on HRI due to the emerging nature of the field and the very limited practical examples in the literature. Case studies and experimental studies may help HRD professionals develop applied approaches that reflect workplace changes in HRI and measure the effectiveness of HRD. Third, this paper limited the focus to collaborative robots of HRI. HRD research can be extended to AI technology by including how humans work with similar future technological applications, such as AI programs and industrial automation systems. Future research may also investigate how other AI-based technologies relate to HRD and integrate the impacts of AI technology and the roles of HRD. Lastly, the main source of the literature search was Web of Science since this database is convenient, includes highly cited documents, and some exclusive journals and proceedings in natural science. However, Web of Science has limitations in literature coverage compared to other sources, such as Scopus, Dimensions, and Crossref. Although I checked the references sections of the searched literature to address this limitation, in the future, researchers should use multiple sources to expand the search.
Conclusion
Working with robots is a reality. Recent developments in automation and control technologies have enabled organizations to introduce robots in the workplace where humans were once the only workers (Bruno & Antonelli, 2018). As organizations have increasingly adopted and considered human–robot collaboration in their production, interactions between employees and robots have been on the rise. Therefore, HRD should strategically support and prepare for this technological change. This literature review explored current knowledge on HRI through the lens of HRD and proposed the roles of HRD. The eight HRD considerations in three human-centered domains of HRI will help organizations implement effective HRI from individual, group, and organizational aspects. By better understanding HRI, HRD can guide organizations that adopt collaborative robots for workforce development plans and policies, workplace well-being, and organization development.
Footnotes
Acknowledgments
The author wishes to thank two robotics scholars, Jung Yun Bae (Ph.D.) and Myungkuk Park (Ph.D.), for their suggestions, comments, and insights on this paper.
Declaration of Conflicting Interests
The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The author(s) received no financial support for the research, authorship, and/or publication of this article.
