Behavioral training of engineering professionals and students for Industry 4.0

Abstract Purpose: To present suggestions for behavioral competency development for engineers and Engineering students to work in Industry 4.0. Originality/value: A human-machine collaboration model (with artificial intelligence application) is proposed for training engineering professionals for the workplace. The behavioral skills for Industry 4.0 to be developed in Engineering degree programs and the quality of evidence of their inclusion in such programs of the Federal University of Rio de Janeiro (Universidade Federal do Rio de Janeiro [UFRJ]) are assessed. Design/methodology/approach: The engineer-machine collaboration model draws on Design Thinking (Brown, 2010) and cognitive modeling of engineers based on a model of logical reasoning (Paul & Elder, 2002), integrating the cognitive model with a model of information flows in human-machine interactions (Riley, 1989). A competency model for Industry 4.0 (Prifti et al., 2017), interviews with leaders of Engineering schools of UFRJ, addressing their planning for the implementation of the new National Curriculum Guidelines for Engineering programs (Resolução no. 2, 2019), and application of the GRADE approach (Balshem et al., 2011) supported the identification of evidence of behavioral competencies for Industry 4.0 in the undergraduate programs. Findings: Engineering professionals train their critical analysis and decision-making skills while the machine searches for and processes information and performs simulations. Low quality evidence was found for the training of undergraduates in emotional intelligence, decision-making, and customer relations. No evidence was identified of training in self-management, entrepreneurship, and understanding of the business model.


INTRODUCTION
Industry 4.0 encompasses advances in the areas of automation, sensors, artificial intelligence, and information and communication technologies based on hyperconnectivity and high degrees of digitalization and senses, making the world increasingly interconnected and interdependent (Hermann et al., 2016). The emergence of a new human-machine relationship (Farooq & Grudin, 2016), based on collaborations between humans and artificial intelligence (AI), has the potential to reshape the way engineers work in the future, calling for a reformulation of engineering curricula to account for the need for graduates to acquire specific behavioral skills, as well as technical skills.
One notable development for the workplace in terms of human-machine collaboration is APPsist. Developed by scientists from the Fraunhofer Institute and implemented at the German multinational Festo, it is a mobile device embedded with an intelligent assistant system that supports the training of production professionals for Industry 4.0, with instructions for process optimization and troubleshooting (Ullrich et al., 2016). Prifti et al. (2017) developed a competency model for Industry 4.0 for Information Systems, Computer Science, and Engineering students at the University of Munich. The model presents a list of competencies that students from these three programs need to master to be able to work successfully in Industry 4.0.
One of the biggest challenges associated with the emergence of Industry 4.0 is how to ensure engineering professionals are trained to work in the workplace reconfigured by this new paradigm (Marra et al., 2017). The training should begin at the undergraduate level, preparing students with the necessary competencies. As such, this article addresses the following research question: • How can Engineering professionals and students be trained to operate in Industry 4.0?
In the engineer-AI collaboration model, the engineer employs critical analysis and decision-making skills, while the machine seeks and processes information and performs simulations for concrete product development situations, focusing on new materials. The two agents (engineer and AI) communicate through intelligent interfaces -voice, gesture, facial expression, body language recognition, and eye tracking -depending on the context. The undergraduate programs of the School of Chemistry and the Poly- ) were found to present low-quality of evidence regarding the training of students in "emotional intelligence, decisionmaking, and customer relations". No evidence was identified regarding their training in "self-management, entrepreneurship, or understanding of the business model". This study contributes to the literature by providing a starting point for more in-depth discussions and debates on the training of engineers for smart work environments in the context of the exponential growth of unstructured data. It is expected that this article helps raise educators' awareness as to the importance of designing curricula aimed at the development of behavioral skills for Industry 4.0 so that engineering students can successfully transition from the classroom to the workplace with the ability to perform more strategic functions.
The article is divided into four sections in addition to this introductory section: literature review, methodology, results and discussion, and concluding remarks.

Industry 4.0
Industry 4.0, from the German Industrie 4.0, refers to manufacturing settings in which communication technologies provide an interface between the physical and digital worlds, integrating machines, humans, and products. Among the technologies that enable Industry 4.0, there are cyber-physical systems (CPS), the internet of things (IoT), human-machine interaction, big data, and data security (Hermann et al., 2016;Brühl, 2015).
CPS have a physical component -the object perceived by the human senses -and a component related to the virtual (cyber) representation of the physical object (Roth, 2016). Decisions are based on the assessment of information from internal sensors and other cybernetic systems. CPSs control physical processes and use feedback to adapt to new conditions in real time (Sabella, 2018).
The "things" interconnected on the IoT, named smart products, are capable of communicating and exchanging information among each other and with the environment without human interaction, creating the basis for autonomous systems, which play an important role in Industry 4.0 (Roth, 2016).
Human-machine interaction occurs through smartphones and other mobile devices that have virtual-reality (VR) and augmented-reality (AR) technologies as interfaces. Immersed in VR, users cannot see the real world around them, while AR allows them to see virtual objects overlaid in the real world.
Big data is the term used to refer to the exponential amount of unstructured data that can be captured via interconnected objects, stored, and analyzed. With exponential data creation, confidentiality and integrity are essential, as well as protection against cyberattacks (Zhuang et al., 2017).

Artificial intelligence
The field of AI seeks to understand agents capable of acting autonomously, such as chatbots, which use AI applications to enable longer, unstructured "conversations" with humans (Dale, 2016). The main AI techniques are machine learning, deep learning, computer vision, and natural language processing (Wang & Siau, 2019).
Machine learning (ML) algorithm improves AI performance over time after an initial period of training with large quantities of data without being explicitly programmed (Ertel, 2017). Deep learning is a type of machine learning based on layers of artificial neural networks. Just as stimuli are needed for biological organisms to learn, neural networks also need stimuli, which are provided by training data containing examples of input-output pairs of the function to be learned (Aggarwal, 2018).
Computer vision is used in industrial applications for optical character recognition (OCR), X-ray vision, to inspect parts for quality assurance purposes, three-dimensional (3D) modeling from aerial photographs, fingerprint recognition, and biometrics (Stone et al., 2016).
Natural language processing is used in applications and services in which the ability to understand human language is key. Jurafsky and Martin (2020) point out two classes of algorithm agents that interact by voice/text/ dialogue: agents that use conversations with humans to support them in the execution of tasks and dialogue agents that are digital assistants, such as Apple's Siri and Amazon's Alexa, which give instructions, control devices, and make phone calls.
The adoption and application of AI introduce challenges to business decision-making because, with deep learning, there is no way of knowing how the model reached a particular decision. This has led to the idea of "responsible" AI and, thus, to the concept of explainable AI (Miller,  i.e., AI whose outputs are understandable by human experts. This stands in contrast with the "black box" of ML, resulting in situations in which no explanation can be given for why an AI system made a particular decision (Edwards & Veale, 2017).

Human-machine collaboration
Human-machine interaction first came about with the popularization of personal computers and investments in the research and development of systems to be used by people with no specialized knowledge on information technology (IT). The interface is the part of the system people manipulate to trigger actions and receive outputs, which they then interpret to decide what steps to take next.
Intelligent interfaces incorporate resources associated with humans, such as perceiving, interpreting, learning, using language, reasoning, planning, and decision-making. They enhance the efficiency of human-machine communication through voice, gesture, image, face recognition, and eye tracking. In this way, they allow users to interact and engage in a collaborative environment where they communicate, control events and perform goal-oriented tasks (Sonntag, 2015).
Two key technologies that use intelligent interfaces are AR and VR. AR glasses enable users to overlay virtual elements on the real environment, while VR glasses immerse them in an artificial 3D world. Interactive machines draw on real-time data obtained through cameras, microphones, and sensors, as well as information generated via radar, laser, and ultrasound, to extract information and adapt their behavior to users and the environment.
By interacting with the environment and users, intelligent machines can learn and evolve by processing images, language data, or sensors autonomously, linking them to existing knowledge. This evolutionary ability could become an everyday feature of real-world machines and software agents in the digital space (Acatech, 2016;Bahceci, 2016).
The Acatech (2016) study, entitled Innovation potential of human-machine interaction, reveals a positive scenario for the future of human-machine collaboration, driven by technological advances in the fields of sensors, actuators, data processing/transmission, and AI.
One concept associated with Industry 4.0 is the augmented operator (Weyer et al., 2015), in which humans' capacity to perceive and act in the physical world is magnified by the possibility of being immersed in VR. CPS are transforming the way humans interact with smart systems, just as the internet has transformed the way people interact with information. As digital technologies expand humans' working capacity toward a more strategic focus, the nature of work changes (Sabella, 2018).
The era of human-machine interaction marked by stimulus-response is giving way to collaboration, in which humans and AI are partners in the execution of tasks (Farooq & Grudin, 2016). Stone et al. (2016) highlight AI research efforts aimed at building intelligent systems in which humans are the protagonists. Design Thinking is a powerful methodology used to design, select options, prototype, test, and validate solutions. It combines human needs and technological feasibility to develop innovative solutions in associative reasoning sessions in an iterative process (Brown, 2010). Dignum and Dignum (2020) note that the human-centered view of AI requires agents to be more aware of the social context in which they operate. Accenture Federal Services (2018) has identified human-machine collaboration trends that could reshape the way people work in the future. These include humans training AI to perform specific tasks and machines augmenting human actions in different ways. Lauer et al. (2020) point out that in the current stage of research on human-machine collaboration, AI algorithms are not yet able to emulate human intuition, although they have made advances in cognitive intelligence. They highlight the relevance of studies investigating the ability of AI to replicate human cognitive and emotional competencies, especially with regard to judgments and decision-making (Selwyn, 2019).
In the future, the work will consist of sets of CPS with which skilled humans will have to be familiar, gaining insights on operations directly from smart machines (Lu & Weng, 2018).

Development of behavioral competencies for Industry 4.0
As the focus of Industry 4.0 is to create intelligent products and processes, it is a challenge for those involved in engineering education to tailor their programs to the kind of profile their students will need to have to meet real-world requirements. Hecklau et al. (2017) examined the impact of digitalization on the competencies required by companies in their "Human resources management: meta-study -analysis of future competences in Industry 4.0". To identify competencies in publications focused on Industry 4.0, they used the concept of job-specific technical and behavioral competencies. Since 2015, the German-based research group Plattform Industrie 4.0 has been researching the competencies required for Industry 4.0 and the training needed to meet the requirements of the digitalized workplace (Federal Ministry for Economic Affairs and Energy, 2017). Siemens created the project Industrie 4.0@SPE, focusing on analyzing the changes resulting from the increasing digitalization in the world of work to adapt the content, teaching methods, knowledge, and skills of instructors working in continuing education. Systems, applications, and products (SAP) use learning platforms that can be accessed via mobile devices to enable the preparation of learning roadmaps.
Senderek and Geisler (2015) have highlighted the contribution of intelligent assistants to skills development for Industry 4.0 in work environments. Its potential to support human decision-making processes is based on their capacity to capture and combine data and provide and evaluate information about the environment. A unit of the Fraunhofer Institute in Stuttgart worked on the APPsist research project (Ullrich et al., 2016), which presents instructions for fixing machine failures on tablets, through texts and videos that demonstrate how to execute the necessary tasks. The system has a VR/AR interface that enables workers to progress according to their own pace of learning, request videos with in-depth content and skip explanations on processes they already master. Prifti et al. (2017), from the University of Munich, have developed a competency model for Industry 4.0 with a focus on the Information System, Computer Science, and Engineering programs. The basis for the model is the Universal Competency Framework, which is centered on behavioral skills and the probability of success in the workplace. This framework is structured in three hierarchical levels, with level 1 consisting of eight major categories of competencies (Table 1), followed by competency dimensions at level 2, and behavioral competencies at level 3. It offers a structured overview of competencies, which are allocated to categories (Bartram, 2012). This structure is widely used in practice to develop competency models for specific positions or contexts (Kleindauer, 2012).
To develop their model, Prifti et al. (2017) maintained the structural relationship between the elements (levels 1 and 2) but adapted level 3. They replaced the general competencies from the framework with competencies for Industry 4.0 obtained from a literature review and focus group sessions with professors, specialists, and consultants involved in research on the subject. Table 2 presents the resulting competencies model for Industry 4.0.

Interacting and presenting
Communicates and influences others with confidence.

Analyzing and interpreting
Demonstrates analytical thinking for complex problem solving and is quick to assimilate new technologies.

Creating and conceptualizing
Actively seeks new learning opportunities and employs broad, strategic thinking.

Organizing and executing
Provides services or products that meet the agreed quality standards.
6. Adapting and coping Adapts and responds well to change and pressure.
7. Enterprising and performing Shows understanding of business and finance and seeks out opportunities for their own career development.

Leading and deciding
Takes control and exercises leadership, initiates action, gives direction, and takes responsibility.
Source: Adapted from the Universal Competence Framework (Bartram, 2012).  Interestingly, most of the behavioral skills are compatible with the three programs -Information Systems, Computer Science, and Engineering -, indicating that professionals need to demonstrate a wide range of interdisciplinary competencies to work successfully in Industry 4.0. For example, engineers will have to collaborate with experts in computer science and information systems to deliver results.

New curriculum guidelines for degrees in Engineering
Brazil's new National Curriculum Guidelines for Engineering programs (Resolução nº 2, 2019) are designed to raise the quality of engineering education in the country and update the delivery of this education. The processes covered in the new national curriculum guidelines (Table 3) are competencybased training, innovative methodologies, encoura gement of innovative institutional policies, emphasis on the management of the learning process, strengthening ties with different organizations, and valuing the qualification of the faculty (Resolução nº 2, 2019).

Table 3
Processes in the new curriculum guidelines for degrees in Engineering Employing

competency-based training
Engineering education should be based on competencies involving the diversity of people's expectations and behaviors. Techniques should be used to transform observation into an economically viable problem formulation and problem-solving, with the application of technologies to meet user and market demands.

Adopting innovative methodologies
This implies adopting teaching methodologies that better meet the needs of the global reality, combined with developing behavioral competencies and motivating students to seek out different sources of input. The idea is to make the engineering learning process more dynamic and autonomous, engaging students in solving concrete problems that require interdisciplinary knowledge in a bid to raise the quality of teaching and reduce drop-out rates.

Encouraging innovative institutional policies
The idea is to promote a greater diversity of engineers to meet the different needs of society, such as housing, security, education, and health. The new guidelines are more flexible so that each higher education institution can structure its courses as it wishes to foster the competencies needed for the graduates of each program.

Managing the learning process
The new curriculum guidelines are designed to encourage the development of a culture within higher education institutions that fosters the management of competency development. This means developing academic and professional profiles that are aligned with international benchmarks and training students to work effectively in the area of engineering anywhere in the world.

Strengthening ties with different organizations
The programs should promote interactions with organizations for the development of projects of mutual interest while also encouraging the students' final-year projects to address concrete problems faced by companies. (continues)

Valuing the qualification of professors
Professors should be encouraged to train in new teaching/learning methods and strategies, develop their pedagogic and academic management skills, strike a balance between functional incentives, academic incentives, research funding, outreach, and teaching activities and involve business professionals in academic activities.

METHODOLOGY
The research has a exploratory and qualitative nature. Exploratory research is carried out when the chosen topic is little explored, making it hard to formulate precise hypotheses (Gil, 2008). Qualitative research is interpretive as the researcher interprets the data (Creswell, 2007).
Design Thinking (Brown, 2010) was applied iteratively to identify and summarize ideas for designing the functionalities of the machine AI-engineer collaboration model. First, a brainstorming session was held with experts in the human factor, product design, and engineering processes, and, subsequently, with experts in intelligent interfaces, VR, and AR.
Once the functionalities had been decided, the engineer-machine collaboration model was formulated. This included cognitive modeling of the engineer's critical thinking to train the AI algorithm, integrating Paul and Elder's (2002) and Paul et al. (2006) critical thinking/logical reasoning model/checklist with Riley's (1989) model.
The implementation of the competency model for Industry 4.0 (Prifti et al., 2017), interviews with leaders from the School of Chemistry and Polytechnic School of the UFRJ addressing their planning for the implementation of the new national curriculum guidelines for engineering programs (Resolução nº 2, 2019), and the GRADE approach (Balshem et al., 2011) were used to assess the quality of evidence of behavioral skills for Industry 4.0 in the undergraduate programs.
UFRJ was chosen because of its long, internationally recognized tradition in engineering education. The School of Chemistry offers programs in Chemical, Bioprocess, and Food Engineering, as well as joint programs with the Polytechnic School and/or the Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering (Petroleum, Control and Instrumentation, and Environmental Engineering). The Polytechnic School offers 13 Data were collected from interviews with the deputy director of undergraduate studies of the Chemistry School and the director of the Polytechnic School, with questions that focused on their plans for the implementation of the new processes in the new curriculum guidelines for Engineering degree programs (Table 3). According to Gil (2008, p. 11), "different types of interviews can be used according to how structured they are. The most structured interviews are the ones that predetermine, to a greater degree, the answers to be obtained".
The first stage of implementing the model of competencies for Industry 4.0 proposed by Prifti et al. (2017) consisted of transcribing and analyzing the content to extract relevant information. Next, the process of grouping the information into the eight major competency categories (level 1) was started. After this, the GRADE approach (Balshem et al., 2011) was applied in individual sessions to assess the quality of evidence (Table 4) (Table 2), this evaluation of the quality of evidence performed for level 1 was repeated through to level 3, extracting the relevant behavioral competencies for engineering training regarding Industry 4.0.

Table 4
Quality levels of evidence and definition

Level of quality of evidence Definition
High High level of confidence in the quality of the evidence.

Moderate
Moderate level of confidence in the quality of the evidence: estimate is very similar to reality but could diverge.

Low
Low level of confidence in the quality of the evidence: estimate may diverge from reality.

Very low
Very low level of confidence in the quality of the evidence: estimate may diverge substantially from reality.

RESULTS AND DISCUSSION
The model for engineer-machine (AI application) collaboration, based on the design-thinking-inspired brainstorming sessions with specialists described above, illustrates the development of the engineer's critical analysis and decision-making competencies while the machine searches for and processes information and performs simulations. The conception of the functionalities of the collaboration model is illustrated in Figure 1, in which two agents (engineer and AI) communicate through intelligent interfacesvoice, gesture, facial expression and body language recognition, and eye tracking -, depending on the context. In order to exemplify engineer-machine collaboration, a concrete case of product development and decision-making competency development has been chosen, with a focus on new materials: • Engineer: requests search for products similar to the one they want to develop.
• AI: provides the design, lists, and types of materials from similar product(s).
• Engineer: inputs the thermal conductivity and elasticity parameters for the material.
• AI: provides options for materials, suppliers, and test videos with a similar product.
• Engineer: explores features of simulation using VR and AR tech nologies, gaining insights into the material's characteristics and product handling. With VR, they can develop prototypes and handle the product or components, and with AR, they can inspect component assembly.
The modeling of the engineer's cognitive process to train the AI algorithm was based on the critical thinking model (Paul & Elder, 2002) presented in Figure 2 and The thinker's guide to engineering reasoning (Paul et al., 2006).  Functionalities of the human-machine (AI) collaboration model

Figure 2
Critical thinking model

Intellectual patterns
Clarity Range

Relevance Depth
Logic Equity

Elements of reasoning
Purpose Information

Problem Concepts
Suppositions Inferences

Point of view Implications
Source: Adapted from Paul and Elder (2002). Paul et al. (2006) applied the critical thinking model to engineering (Figure 2), offering instructions to guide engineers in their logical reasoning and critical thinking: 1. express the purpose clearly; 2. ask the right questions to solve the problem; 3. make assumptions and suppositions; 4. consider the stakeholders' points of view; 5. use valid data and information from reliable sources; 6. use alternative concepts with precision; and 7. ascertain the implications of inferences and interpretations. An example of the checklist would be as follows: 1. the engineer states the purpose, distinguishes it from other related purposes and monitors its progress periodically; 2. the engineer sets about solving a specific problem, defining it clearly, representing it in different ways to ascertain its scope and whether it requires reasoning from different hypotheses or points of view, and so on, for all the elements of reasoning.
The model and its functionalities (Figure 1) were applied to Paul et al.'s (2006) checklist to model AI training (Table 5). The engineer's actions are described on the left, and the machines are on the right. For example, in the first line, the engineer defines the problem and expresses the objectivethey make a decision regarding the development of new products. The machine checks for permission and infers the engineer's intent. Next, the engineer asks questions (e.g., "What type of material is most suitable for the top and bottom coating of the product?"), and the machine receives and processes the information and displays a drawing and a list of materials.

Table 5
Model for AI training by engineer Engineer Machine (AI application) Defines problem and expresses objective: makes a decision regarding the development of new products.
Checks for permission and infers the engineer's intention and knowledge.
Expresses questions: what types of material are most suitable for the top and bottom coatings of the product?
Receives and processes information -presents a drawing and list of materials.
Provides information: conductivity/elasticity parameters of the material for the upper and lower coating of the product cylinder.
Processes information and offers alternatives for decision-making.
Presents options of materials, suggesting which is best.
Presents a video with a performance test, similar product(s), and suppliers and awaits approval from the engineer before taking further action.
Perceives the machine's behavior, perceives the information presented and monitors and requests information: VR simulation/3D prototyping of product to gain insights on its handling and performance; quality simulation of the complete product using AR to check for potential gaps.
Does a simulation, generates a 3D prototype of the product and advises the engineer as to the correct way to handle the product.

Engineer Machine (AI application)
Checks inferences: production cost. Presents a holographic projection of the production area, monitors movements of other production workers and requests collaboration.

Makes a decision.
Source: Elaborated by the authors.
The steps proceed in succession until a decision is made. The engineer draws on their own logical reasoning and critical analysis to train the machine (AI application), which expands its memory, seeks and processes information, does simulations, suggests actions and provides support for decision-making.
The model for AI training by the engineer (Table 5) was then integrated into an adaptation of Riley's (1989) model of the information flow in human-machine interactions (Figure 3). Finally, the AI training model (Table 5) was incorporated into an adapted version of Riley's (1989) model of information flows in human-machine  (Figure 3) to generate the model of engineer-machine collaboration with an AI application (Figure 4).

Figure 4
Model of human-machine collaboration with AI application Infers engineer's intent

Makes assumptions
Perceives context

MACHINE ENGINEER
Expresses objective This engineer-machine collaboration model encompasses the machine (left), the engineer (right), and the context (middle). In this model, context means the various intelligent interfaces -voice, gesture, facial expression, body language recognition, and eye tracking -used in the engineer-machine (AI application) interaction. In the three loops (engineer-context, machinecontext, and engineer-machine), information from the collaboration between the two agents is processed, with the context providing the machine and engineer with information, the machine and engineer providing the context with information in the form of actions, and a loop for exchanges of infor- mation between the engineer and the machine. The machine searches for and processes information and performs simulations, while the engineer employs logical reasoning, critical analysis, and decision-making skills. An evaluation of the quality of evidence of the development of behavioral competencies for Industry 4.0 in the Engineering degree program of the UFRJ is presented in Table 6. The eight main competency categories from Prifti et al.'s (2017) model (Table 2) are described in column 1, relevant information extracted from the leaders' responses are in column 2, and evaluations of the quality of evidence of the relevant information are in the respective categories in column 3. Moderate confidence in the quality of evidence, but the reality could be different.

Interacting and presenting
A plan to expand our interactions would be important to showcase the students' true profile. This is being planned by the coordinators of the internships, and once our partner companies have been analyzed, it will be possible to prospect other companies.
Low confidence in the quality of evidence, the reality may be substantially different.

Analyzing and interpreting
As for Industry 4.0 and AI in engineering education, this means taking action to include, in the courses taught, scientific computing and tools that can introduce the students to this expertise. The actions should be executed by the faculty, provided they are properly incorporated into the course syllabuses and the descriptions of the courses that use these approaches. Moderate confidence in the quality of evidence, but the reality could be different.

Great eight competencies
Relevant information extracted from interviews with leaders from the schools of engineering of UFRJ Level of quality of evidence

Creating and conceptualizing
Engineering is, by definition, multidisciplinary. It's been broken down by an excess of the scientific method applied to the professional area -the optimal method for research but really bad for doing a project (design). We have to get back to the method of developing solutions for problems, identifying problems, studying problems, identifying requirements, devising solutions, scaling up projects (design), studying their feasibility (now with multiple criteria, sustainable), and detailing their execution. The curriculum reform is moving in this direction.
Moderate confidence in the quality of evidence, but the reality could be different.

Organizing and executing
There are a lot of methodologies to bring about a reformulation of the teaching and training methods for these professionals, always maintaining the relationship between practice and theory: active methodologies, integrated projects, flipped classroom, use of blogs, robotics, Moodle, modeling, videos, forums, group problem-solving, workshops.
Low confidence in the quality of evidence, the reality may be substantially different.

Adapting and coping
The students who drop out of the program are the ones who are extremely intelligent, and so they stand out, even on a course that wasn't their first choice. When they realize this, they drop out in search of their real aptitudes. I think the main way of measuring a student's success during an Engineering program is whether they enter the market, whether it is through internships during the program or even getting a job after completing the program. Today, about 80% of our students take an internship in companies, and at the end of the program, 70% are employed, and 10% do graduate studies. It's become standard practice to analyze the student's average grade, which is actually valued more by the professors than by the market, which evaluates other skills.
Moderate confidence in the quality of evidence, but the reality could be different.

Enterprising and performing
No evidence. Low confidence in the quality of evidence, the reality may be substantially different.
Source: Elaborated by the authors.
Following the structure of Prifti et al.'s (2017) model (Table 2), the evaluation of the quality of evidence at level 1 was extended up to level 3. In this study, only the competencies for Industry 4.0 related to engineering education were extracted, as shown in Figure 5.
The results indicate that most behavioral skills were attributed to a mode rate level of confidence (light blue). There is room to strengthen and diversify relationship networks through the development of joint projects between academia and the business sectors. The assimilation and application of digital technologies could lead to more opportunities for training in solving complex problems. This would call for a curricular redesign focused on continuous learning, collaboration with multidisciplinary teams, creation of business strategies, flexibility, leadership, innovation, creativity, and mastery of oral and written communication for developing, prototyping, testing, and presenting solutions of value to customers and society. The issue of student drop-out is critical because, as pointed out, students may stand out academically and still choose to leave the program. The pressure for results could be addressed by getting students involved in team projects focused on real-world problems. The new curriculum presents opportunities for this, potentially enhancing results in the short term (one semester or 120 days) if resources (accumulated knowledge, talent, and teaching experience), processes (governance, infrastructure, laboratories, research), and values (student learning as a priority) are properly mobilized. With regard to the competencies with a low level of confidence (dark blue), network expansion, with new partnerships between academia and business professionals, could provide opportunities to improve negotiating skills, oral/written communication, and the ability to put across an argument or point of view. Being committed and organized is a prerequisite for making things happen with a high standard of quality. It takes a lot of practice for students to learn how to take ownership of their learning process, learn to give directions, focus, take the initiative, and take on responsibility. Similarly, it poses a big challenge for professors as they take on new roles and adopt new methodologies to train students in the kinds of situations the students will experience in their professional life.
No evidence was found (grey) for entrepreneurship, understanding of business models, or self-management. One way to develop such competencies would be to seek out external partners who could give advice on how to develop teaching strategies for them in the medium term (one academic year or 240 days). No behavioral competencies with strong evidence of quality were identified.

CONCLUDING REMARKS
One of the biggest challenges to emerge with Industry 4.0 is the training of engineers qualified to work effectively in workplaces reconfigured by this new paradigm. Training in the necessary skills should be given when prospective engineers are still taking their first degree. This article seeks to answer the following research question: "How can engineering professionals and students be prepared for Industry 4.0?".
The subjective evaluation used in this study to assess the quality of evidence of behavioral competencies based on answers to questions given by leaders of engineering schools has some limitations. Nonetheless, the GRADE approach used here provides a robust framework for the analysis of judgments.
This study contributes to the literature by providing a starting point for more in-depth discussions and debates on the training of engineers for smart work environments in the context of the exponential growth of unstructured data. It is expected that this article helps to raise educators' awareness as to the importance of designing curricula aimed at the development of behavioral skills for Industry 4.0, so that Engineering students can successfully transition from the classroom to the workplace with the ability to perform more strategic functions.
Future studies could apply a similar methodology to engineering schools in other Brazilian states. Quantitative research to compare evidence of behavioral competency development for Industry 4.0 between federal and private universities could also provide valuable insights for forums to discuss engineering education and for defining what new functions engineers need to have when working in smart environments.