A Systematic Review of Collaborative Networks: Implications for Sensing, Smart and Sustainable Enterprises

. The formation of collaborative networks advocates the efficient sharing of information and knowledge, agile and intelligent decision making for the improvement of operational, financial and organizational performance. Such configuration is motivated by the technological advances, increasing demand for customized products and dynamism characteristic of the digital era. Sensing, Intelligent, and Sustainable Enterprises (S ^ 3) address a new vision to be disseminated among organizations seeking competitive advantage. Based on the literature on Collaborative Networks and S ^ 3 Companies, the article proposes to systematically review the state-of-the-art of collaborative networks, identifying challenges and future research opportunities present at the intersection of these two approaches. As a contribution of the research, is presented a conceptual framework based on the main results of the review..

1 Introduction Weichhart et al. (2016) proposed the Sensing, Smart and Sustainable Enterprise, which characterizes a company's sensitive ability to understand its own environment and act in concern with the many collected information, making decisions faster, more efficient and more in order to become competitive and sustainable.Sensing enterprise indicates the ability to anticipate future decisions by capturing multidimensional information, enabling the company to reach and know the different scenarios [2].Smart enterprise refers to the ability of companies to adapt rapidly to competitive market changes and challenges in an agile way to create and exploit knowledge in response to the opportunities [3].Sustainable enterprise is associated with environmental, social, economic and ethical concerns [4].Weichhart et al. (2016) signaled challenges and developments for the S ^ 3 approach to become a reality.S ^ 3 Enterprises cover a number of domains of knowledge in, among them, business collaboration.The review seeks to answer the main question: How has the discipline of collaborative networks addressed in recent years the advances of companies in relation to the new requirements of the competitive market?
This review article intends to contribute to knowledge by identifying mechanisms in the context of collaborative networks that inspire companies that seek to become S^3, contributing by identifying the main domains of application, challenges and research approaches.

Methodological Procedures
According Fischl, Scherrer-Rathje and Friedli (2014), the literature review aims to map, summarize and evaluate the relevant knowledge of a particular subject.The approach used in this research is based on three main steps [6]: planning, conduction and dissemination.In the planning stage, it was identified that S ^ 3 Enterprise need studies on the characterization of the collaboration domain.It was decided to systematically review the concept of "collaborative networks" in search of evidence on the motivators of collaboration.Already in the stage of conducting the study, three databases were selected: Scopus, Web of Science and SciELO.In these databases, the keyword entered was "collabo * network *" with asterisks to contemplate the term and its plural and between quotation marks to search the two words together.The first filter applied in the systematic search was the keyword "collabo * network *" (for Scopus and Web of Science) and "collaborative networks" or "collaborative network" or "collaboration network" (for SciELO) in abstracts, keywords and document titles.The second filter refers to the time limitation, from 2012 to 2017.Because it is an incipient approach (S ^ 3 Enterprises), it is considered that such a limitation does not negatively affect the quality of the research, since the last years are (1988), which is characterized by intense advances in information and communication technologies (ICTs), internet and social networks [7].The third filter was the exclusive selection of papers in journals indexed and related to engineering.The 138 selected articles were read in full and the contributions acquired will be exposed in the sequence, in the stage of disclosure of the evidences found.After reading in full the 138 articles, fifteen articles were disregarded in the analysis because they did not present relevant contributions.Therefore, in total, 123 articles contributed to the research.Facing the necessity of synthesis, the paper presents the main results citing directly 75 papers.
In the next item the main motivators of collaboration are discussed, basing the construction of evidence on S ^ 3 Enterprises and, consequently, the elaboration of a conceptual framework.

Results
The results are based on the identification of the main motivators of the collaboration, search approach and application field.

Motivators of Collaboration
The main factors that motivate organizations to collaborate are sharing information and knowledge, resources and skills, risks and benefits; growing demand for product variety and customization, dynamicity and market competitiveness, exploration and capture of new business opportunities , innovation, improving business performance, rapid advancement of Information and Communication Technologies (ICTs), costs reduction, economic, social and environmental sustainability.
Sharing information and knowledge: The ability to share information and knowledge motivates companies to create collaborative networks [8].The tools to support sharing are based on information and communication technology (ICT), RFID systems [9], standards-based systems that allows computer-human interaction through a web service [10].Knowledge management allows the aggregation of different factors used and people in order to improve decision making, adapt to new technologies and share knowledge through collaborative networks [11].Collaboration with universities, and with suppliers, reflects on the efficiency of innovation through technical communication and knowledge transfer [12].Technological frontier countries seek incentives to collaborate with other countries investing in research in order to create networks of excellence [13].In this context, the European Union funds collaborative projects between organizations with the intention of disseminating and eventually creating new knowledge [14].Clusters are more likely to receive research and development subsidies, benefiting from the ease of access to the knowledge disseminated in this concentration of companies seeking collaboration [15].Scientists promote the exchange of knowledge in exchange for recognition in the scientific environment [16].The process about knowledge requires adequate strategies, tools and methods, as well as definitions of the consequences and needs of collaborative partnerships [17].

Sharing of resources and skills:
The manufacturing industry faces challenges and the principle of business collaboration helps to share resources and competences [18], reflecting the capture of business opportunities [19], profitability of the company [17], access to information and knowledge and the company's reputation [20].An entrepreneur faces uncertainties such as resource capacity that can be viable through collaboration [21].Resource sharing fosters the search for collaboration [22].
Risk and benefit sharing: The investment in capacity expansion is the uncertainty that motivates a decision maker to collaborate with other companies, since the technologies suffer a rapid obsolescence [23].R&D projects are motivated to form partnerships to share risks and benefits [24], specifically the initial phase of product development.Online collaboration platform can encourage risk management more efficiently and effectively, especially in cases with diminished technical, financial and human resources [25].
Growing demand for product variety and customization: The customization of products enables aggregation of value, quality of service and increase in sales volume [26].The growing demand for customized products generates the stakeholders need for knowledge [27].Collaboration between companies is a mechanism to manage the growing demand for services associated with production processes [28].The e-work encompasses computer-supported collaborative operations in distributed organizations can serve as a tool to assist traditional enterprises [29].
Dynamicity and market competitiveness: The complexity and dynamism of the market are a highly competitive business environment [30].Intense changes such as rapid technological development, internationalization of the market and trade, as well as socioeconomic and political issues have affected society and business [31].Collaborative networks improve the sociability and usability of ICTs [32], and are considered effective for geographic and social issues, as it enables a trust relationship between partners, establishing common policies, infrastructure and interoperability [33].Market demands interfere with the harmonization and interoperability of collaborative networks [34].The dynamic environment reflects in the growing number of publications, conferences, responsibilities and impact society as a whole [35].It is necessary to renew, expand, adapt and modify products and processes [36].Consumers demand quality products with agility and cost-effectiveness [37].Collaboration networks allow the management of complex and dynamic systems [38].During the management of these systems, the loss of knowledge during product development should be avoided [39].Social capital as a key resource for collaborative practices [40].
Exploration and capture of new business opportunities: Collaboration allows capturing new business opportunities.The collaborative networks provide conditions in new and unexpected business opportunity [41].In the academic context, a collaborative can facilitate access to resources [42].Collaboration allows the increase of visibility and the recognition of own competences [16].The search for collaborative partners is an important channel for winning new clients [43].
Innovation: Collaborative networks have six times the capacity to develop innovation compared to organizations that operate individually [44].Companies that collaborate technologically are more likely to generate product innovations and specifically radical innovations, and the larger the company, the more likely it is to generate innovations [36].Public research funding facilitates the production of knowledge and is a key element to develop technology innovations [45].Knowledge management, trust building and communication among partners in a collaborative network are essential factors for innovation [46].The failure to harness the knowledge embedded in the collaborative network is detrimental to the innovation [47].
Improving business performance: Several organizations seek to stablish collaboration networks to gain agility, complement activities, competitiveness, and improve resources, gain innovation power, flexibility, efficiency and effectiveness of operational activities [48].The collaborative scenario encompasses criteria, mechanisms, and decisions that improve business performance [18].Collaboration is proven an effective strategy to improve service levels, process stability and the utilization of productive resources [49].Collaboration among researchers aims to improve the quality of research, increase scientific productivity [50] and longevity [51].In R&D projects, collaboration fosters the exchange of knowledge, sharing of resources and costs among employees, improving expected results, and industry performance [52].In humanitarian projects, intergovernmental collaborative networks improve the quality of services provided to clients, as well as optimize the use of resources and reduce expenses [53].Collaborative networks are motivated by the urgency to rescue lives, thus advocating for efficiency and interoperability in services [54].In the academic and industrial contexts, the motivation is associated with the search for improvement of business performance and, consequently, competitiveness [55].
Rapid advancement of ICTs: The organizations in collaborative networks aim to meet the needs of the market [56], such as virtual organizations and regional clusters [57].ICTs support collaboration and the breakdown of geographical barriers of the global market [58].ICTs accumulate knowledge from different domains to leverage the collaborative relationship [59].ICTs are relevant to help manage the highly unpredictable nature of demand and the short lead times associated with the products [27].Network technologies enable the harmonization of internal and external communications [59].The demand for constant technological improvement and advances capable faces new challenges such as interoperability [37].

Costs reduction:
The importance of the efficient structuring of the collaborative network so that the costs of adopting this strategy do not exceed the desired benefits [60].Uncertainties on the global stage drive collaboration to reduce costs, improve trust, and meet consumer demand [61].The reduction of transportation costs through the formation of collaborative networks among suppliers [62].
Economic, social and environmental sustainability: Global warming as a factor that motivates companies to improve their environmental and social reputation [63].Managers have been attacking the question of environmental sustainability for the development of products, intensifying the collaborative partnerships [64].There is a trend of international collaborative partnerships for mitigating climate change [65].Collaborative efforts contribute to the reduction / minimization of environmental impacts.Network sustainability requires strategic planning as well as a common understanding of how partners collaborate, and interact with society and the physical environment [31].

Search Approaches
The first approach is conceptual.Durugbo and Riedel (2013) proposed a conceptual model to assess the readiness of organizations in collaborative networks to service the product / service system, with multiple case study in four different sectors.Grilo et al. (2013) proposed a model for business interoperability in the context of collaborative networks.Kumar (2014) proposed a framework for knowledge management, which could serve as an early warning system to avoid excessive product recalls.This framework was approached in a practical study in the food sector.The second approach is bibliographic review.Di Cagno, Fabrizi and Meliciani (2014) conducted a study on R & D projects and concluded that participation in projects funded by the European Union is an important channel for knowledge transfer.Karimi and Khalilpour (2015) developed a bibliometric review, considering the years 1980 to 2013, on the evolutionary trend of international carbon capture and storage collaborations, analyzing the collaborative network of the countries that publish on this subject.Kim and Perez (2015) considered the years from 1997 to 2012 to carry out a bibliometric review of industrial ecology.
The third approach was the proposition of models, frameworks, prototypes, systems, architectures, etc., in a conceptual or mathematical way, without practical applications.Li and Du (2015) proposed a framework to support the sharing of data among all the participants of a collaborative network, proposing the cloud as the main support tool.This framework is an intelligent intermediary system that helps companies to search, question and recommend potential collaborators.
Surveys and case studies were addressed in fewer investigations.Macke et al. (2013) conducted a survey to identify the relationship between the elements of interorganizational social capital and the competitiveness of the collaborative network.Dias and Escoval (2012) also used the survey to identify the main pillars of innovation in hospitals and concluded that external collaboration is the main driver of innovation, while technology behaves as a mechanism that facilitates innovation in hospitals.The case study was used in the research of Saetta, Tiacci and Cagnazzo (2013), where they presented the first organization that adopted the model of Virtual Development Office.Boehm and Hogan (2014), in turn, conducted a qualitative case study to analyze collaborative networks between universities and industries.
In summary, approximately 55% of the selected studies proposed models, architectures, prototype frameworks or systems, considering both the studies that applied in a real case and those that did not apply in a real case.

Fields Application
Fields application are diverse, however, the intention to systematize their occurrence is to elucidate possible applications within the scope of S^3 Enterprise.Approximately 34% of studies were performed without specifying a sector.These studies usually present problems and solutions without necessarily associating them to a given field.Chen et al. ( 2013) proposed a collaborative network security management system that can identify and treat new distributed attacks more quickly and effectively.Huang et al. (2016), in turn, studied how much regulatory pressure and customer pressure affect the organizations' environmental decisions.
The studies about collaborative networks in the academic context have been quite frequent.Boehm and Hogan (2014) investigated the role of the lead researcher in collaborative research projects and empirically validated the entrepreneurial role in building collaborative networks.Chakraborty et al. (2015) proposed two classification models to predict at the beginning of a researcher's career, how long the group to which it belongs will remain active and how productive it will be.Other studies focused on R & D, technology, virtual organization and other sectors.Arriagada and Alarcón (2014) proposed a model to develop management strategies and maturation of knowledge applied to civil construction.Baek et al (2015) proposed a framework for the design of collaborative services in agricultural communities.
Seventeen publications have specified the field of study, however, were unique in addressing such a sector.Studies were carried out on start-ups in industry: auto parts, state environmental agencies, silk, malting, wine, bio-pharmaceutical, furniture, consultancies, and humanitarian organization, among others.This diversity of fields in the framework of collaborative networks motivates the conduction of studies on S^3 Enterprise.Regardless of the industry or focus of the research, companies and universities are generally looking for collaborative relationships to meet the new challenges imposed by current business models.

Results Systematization
The systematic review of a widespread and consolidated discipline (collaborative networks) sought to detect how much the researchers have directed, albeit indirectly, their respective research to the new vision mentioned above.It was possible to highlight the main motivators for the formation of collaborative networks: sharing of information and knowledge; resources and skills; risks and benefits; increasing demand for variety of products and customization; dynamism and competitiveness of the market; exploration and capture of new business opportunities; innovation; improving business performance; ICTs; cost reduction and economic, environmental and social sustainability.The main challenges identified by the researchers were: trust among partners; the interoperability of the information systems of the partners involved; the stage of selecting the collaborative partners; the alignment and clear definition of strategies and objectives; ensuring the security of data and information shared over the internet or other informational system.
Figure 1 presents a conceptual framework contemplating the challenges and opportunities identified in the systematic review with the objective of organizing and facilitating the understanding of the objectives intended in the work, as well as contribute with literature and future practical work on the theme.The study of collaborative networks was adopted through the intersections with the S ^ 3 approach.

Conclusions
The systematic review on collaborative networks was carried out because it is a consolidated subject in the literature and that meets the research gaps identified in the work of Weichhart et al. (2016).The approach of a mature discipline aims to guide the development of the new paradigm discussed in the present study, S ^ 3 Enterprise.
The research sought to identify the main motivators, research approaches, most frequent application domains and the list of countries that published the most, for the construction of a conceptual framework with the main challenges and opportunities of collaborative networks and S ^ 3 Enterprise.Motivators represented the reasons why companies seek collaboration, and consequently the benefits they seek are implicitly associated.It is worth mentioning that they are implied in the proposed framework, since they were essential for understanding the challenges and opportunities of the areas under study.The most common research approaches, application domains, and the list of countries that most published on the subject were complements that sought to reinforce the idea that collaborative networks are comprehensive and effective strategies for addressing aspects of the digital age.
However, although collaborative networks have advantages, they also have internal limitations such as the availability of resources (physical, human, organizational and financial) and the ability to coordinate them in an integrated way; external constraints expressed by institutional factors governed by rules and conduits in the network operating environment; and associated challenges such as developing trust between partners, interoperability of information systems, selection of collaborative partners, alignment and clear definition of strategies and objectives among all stakeholders, ensuring data security and information shared over the internet or other informational system.
The systematic review allowed us to identify some opportunities in the intersection of collaborative networks and S ^ 3 Enterprise, such as: the need to develop new business models; the fostering of a digital ecosystem; the development and / or adaptation of emerging technologies; the optimization of manufacturing processes; the exploration of the aspects brought by the internet of everything; the use of cloud computing; the development of interoperable systems; the elaboration of ontologies, architectures, models, frameworks that support the development of the disciplines in question; and sustainable development in the economic, social and environmental aspects of business.
Lyons et al. (2013) developed a knowledge-based framework to demonstrate how different collaborative networks can support product variety and customization.

Figure 1 :
Figure 1: Conceptual Framework of Collaborative Networks and Enterprises S ^ 3