Digital transformation in small and medium enterprises: a scientometric analysis

Purpose – This paper aims to explore the research field of digital transformation in small and medium enterprises (SMEs), considering the importance of SMEs in the economic development of countries. Design/methodology/approach – Consideringthe contributionsof researchersand the challengesof SMEs to transform their business models, in this paper, the authors conducted a scientometric analysis using CiteSpace that included 448 documents indexed in Scopus. Findings – The authors appreciated the growth in the number of publications that have studied the digital transformation process in SMEs, showing a niche of researchers interested in the flourishing research topic. Likewise, the authors identified the intention of SMEs to adopt digital technologies such as artificial intelligence, big data, cloud computing, data analytics, electronic commerce and the Internet of Things. Practical implications – This paper is a valuable resource for academics and researchers in information systems, decision-makers in digital transformation in SMEs and governmental organisations concerned with digital technologies adoption in SMEs to achieve digital transformation and increase competitiveness and productivity. Originality/value – This study used CiteSpace to conduct a scientometric analysis to explore how researchers have focused on frameworks and maturity models for measuring SME readiness, the impact of Industry 4.0 on SMEs, guides for helping managers evaluate their Industry 4.0 positioning, the development andimplementationofdigitalbusinessstrategiesforSMEs,thepresentationofcasesofSMEsthathavedriven digitaltransformationandfutureresearchopportunities.


Introduction
Digital transformation is a concept that is becoming increasingly important in public and private organisations (International Telecommunication Union, 2019).It is a process in which Digital transformation in SMEs medium enterprises?For this purpose, we conducted a scientometric analysis using CiteSpace v. 6.2.R1 64-bit advanced, considering 448 documents indexed in Scopus about digital transformation in SMEs.Our study reveals an increase in the number of publications on digital transformation in small and medium enterprises, showing a niche of researchers interested in the flourishing research topic.In addition, we identified some earlier experiences of small and medium enterprises adopting digital technologies, such as Cloud Computing, the Internet of Things and Artificial Intelligence.Section 2 presents the materials and methods to collect and analyse the data.Section 3 presents the results, considering the overview of the field of digital transformation in SMEs and the scientometric analysis.Section 4 presents the discussion.Finally, Section 5 presents our conclusions.

Materials and methods
The scientometric analysis was selected to objectively map the scientific knowledge published about digital transformation in SMEs.The analysis was performed using CiteSpace "a visual analytic tool for visualizing landmarks, critical paths, and emerging trends in the research field based on relevant scholarly publications" (Chen, 2022).The scientometric analysis was used to study the production, distribution, and impact that scientific and academic research has had in the field of digital transformation in small and medium enterprises.The results of the scientometric analysis can be useful to inform SMEs, researchers and public policymakers about the key areas in which progress is being made and the challenges that still need to be addressed in the field of study.

Data collection
The Scopus database was selected as the data source.We chose Scopus because it is a sourceneutral abstract and citation database that indexes many journals, proceedings and other sources that cover multiple disciplines and fields of knowledge, allowing the analysis of an interdisciplinary topic such as digital transformation in SMEs (Scopus, 2023).We used the search string ("Digital transformation" and "SMEs") after conducting several tests.We decided to leave only the acronym SMEs, widely recognised in the scientific literature and industry, to refer to small and medium enterprises because it speeds up the search process.Likewise, using longer terms such as "small and medium enterprises" OR "small and medium-sized enterprises" could generate more irrelevant results, adding more difficulty in filtering results and selecting the relevant documents for the literature review.The data extraction was set from 2016 to June 3rd, 2023.When the preliminary searches were carried out, we found that the first documents dealing with SMEs' digital transformation were published in 2016.In this sense, 2016, as the start date of the document search, was not manually configured but was the result of what was identified in the literature.In addition, this research considers only articles and conference proceedings published in English without additional inclusion or exclusion criteria.This search yielded a total of 448 publications, which when searching the descriptors in the article title, abstract and keywords (data retrieval time: 20:31, 3rd June 2023).

Data analysis
We performed a descriptive analysis of the results obtained in Scopus, considering the number of documents published by year, author, source, affiliation, country or region and keyword occurrence, likewise revising the number of citations obtained by the documents.CiteSpace, v. 6.2.R1 64-bit advanced (Chen, 2023), was used to extract co-citation analyses for co-cited references and conduct burstness analyses.The co-citation analysis helps to identify the most influential publications or authors in the field of digital transformation in small and medium enterprises.At the same time, the burstness analysis helps to determine the most rapidly growing areas of research in the field of digital transformation in small and medium enterprises, as well as areas that have received less attention over time.

Results and analyses
3.1 Overview of the field of digital transformation in SMEs 3.1.1Publication trend.Analysis of the recovered documents indicates a noteworthy increase in publications on digital transformation in SMEs from 2016 to 2023.It is remarkable that even if only three documents appeared in 2016 and 2017, in 2018, the number of publications increased to 16 (growth rate 433,33%); in 2019, it further increased to 30 (growth rate 87,5%).In 2020, there was a significant jump in the number of publications to 73 (growth rate 143,3%), followed by another increase in 2021 to 107 documents (growth rate 46,57%).The trend appears to continue in 2022, with 152 documents published (growth rate 42,05%).However, it is important to note that the data only covers June 2023, with 64 documents published on digital transformation in SMEs this year.Regarding citations, 299 of 448 documents have citations, totalling 5,167 citations.The results highlight that the ten most cited documents add up to 1,658 citations, equivalent to 32%.Table 1 presents the top 10 most cited documents.
The most cited documents have laid the foundations for exploring the digital transformation process in SMEs and correspond to original articles.No literature reviews were identified in the top 10.The papers focused on studying how small and medium enterprises drove digital transformation, the environmental changes due to the COVID-19 pandemic and the adoption of digital technologies to transform the business model, the drivers and barriers for Industry 4.0 readiness and the factors affecting the digital transformation process in small and medium enterprises.
3.1.2Top 10 most productive countries.Table 2 presents the countries that have made the most significant contribution regarding the number of documents published on digital transformation in SMEs.The total number of documents published by the top 10 most productive countries is 283 (63,17% of the total documents), which adds up to 4,789 citations, equivalent to 92.68% of the total citations.The results indicate that Italy, Germany and China are leading the study area, while countries such as Spain, the United Kingdom and France show potential for high impact.Specifically, Italy is in first place with 61 documents published and an average citation rate per document of 22.23.With 56 documents published, Germany is in second place, with an average citation rate per document of 9.63.In third place is China, with 28 documents published and an average citation rate per document of 19.64.These three countries show leadership in the research topic regarding the number of documents published.However, countries such as Finland (18 documents, 465 citations and an average citation rate per document of 25.83) and the United States (17 documents, 676 citations and an average citation rate per document of 39.76), despite having fewer publications, have a high impact in the field of study.In contrast, countries such as Spain (23 documents, 165 citations and an average citation rate per document of 7.17) and Portugal (18 documents, 152 citations and an average citation rate per document of 8.44) have a lower citation rate per document, suggesting that their research output may not be as influential or widely recognised in the field of digital transformation in SMEs.
3.1.3Top 10 sources publishing about digital transformation in SMEs.   5 presents the affiliations that have made the most significant contribution regarding the number of documents published on digital transformation in SMEs.The total number of documents published by the top 10 most productive affiliations is 63 (14,06% of the total documents), which adds up to 858 citations, equivalent to 16.60% of the total citations.The results indicate that the Universit e du Qu ebec a Trois-Rivi eres, Politecnico di Milano and Universit a degli Studi di Torino are leading the study area.Regarding the impact of the affiliations in terms of citations received, Friedrich-Alexander-Universit€ at Erlangen-N€ urnberg (tenth in the ranking) reports four published documents, which have received a total of 129 citations and an average citation rate per document of 32.25.Link Campus University (ninth in the ranking) reports five published documents, which have received 149 citations and an average citation rate per document of 29.80.Universit a degli Studi di Torino (third in the ranking) reports eight published documents, which have received 234 citations and an average citation rate per document of 29.25.The high average citation rate per document shows the impact of the affiliations on the research topic.
3.1.6Top 10 keywords.This work identifies 105 keywords with at least five occurrences extracted from the 448 documents.As shown in Table 6, the subject terms of this study are digital transformation and small and medium enterprises, ranking in the first and second places of the top 10 keywords, respectively.The other most frequent keywords related to our study are Industry 4.0 Digitalisation, Digital Technology, Innovation, Manufacture, Finally, it is interesting to note that the impact of the COVID-19 pandemic on encouraging firms to adopt digital technology is mentioned in the literature.
3.2 Scientometric analysis 3.2.1The co-cited reference network.The dataset analysed in this study consisted of 448 documents containing 21676 references.The co-cited reference network analysis reveals the evolution of research trends, clusters and hotspots in the literature on digital transformation in small and medium enterprises.The network comprises 347 nodes and 1152 links with an overall density of 0.0192, indicating the clarity and influence of the network (see Figure 1).A density of 1.00 represents a highly centralised and connected network.The network's weighted mean silhouette score is 0.8777, and its modularity is 0.7068, indicating that the clustering result of the network map is highly reliable.The network is divided into seven clusters, each with a size greater than or equal to 16, as shown in Table 7.The cluster size indicates the total number of citing articles, while the mean year reflects the recentness of the cluster.The log-likelihood ratios (LLR) labels of the clusters reflect the research frontiers in this knowledge domain.Overall, the co-cited reference network analysis suggests that digital The largest cluster (#0), labelled "Managerial attribute", has 50 members and a silhouette value of 0.889.The mean year of this cluster is 2020.This cluster includes top research topics: managerial attributes, digital literacy, transforming SMEs, technology interaction and organisational roles.The main cited article of the cluster is Zahoor, Zopiatis, Adomako, and Lamprinakos (2023), which studied the effect of managers' digital literacy (MDL) on digital transformation in SMEs.The authors tested a moderated mediation model using survey data from 158 SMEs operating in the United Arab Emirates.The findings suggest that MDL impacts digital transformation through digital technologies.The most cited members in this cluster are: Vial (2019) reviewed a comprehensive body of information systems literature on digital transformation, Li, Su, Zhang, and Mao (2018), who studied how small and medium enterprises with inadequate capabilities and limited resources drove digital transformation and Verhoef et al. (2021) identified three stages of digital transformation: digitisation, digitalisation and digital transformation.
The second largest cluster (#1), labelled "Digital transformation success", has 44 members and a silhouette value of 0.889.The mean year of this cluster is 2018.This cluster includes top research topics: digital transformation success, strategic guidelines, empirical evidence, medium-sized manufacturer and company size.The main cited article of the cluster is Ghobakhloo and Iranmanesh (2021), which offered a guideline for digital transformation success in small and medium-sized manufacturing enterprises under Industry 4.0.The study identified eleven success determinants crucial to SMEs' digital transformation efforts, emphasising that obtaining external support for digitalisation is the first step in ensuring digital transformation success among SMEs.The most cited members in this cluster are: Mittal, Khan, Romero, and Wuest (2018) reviewed Smart Manufacturing (SM) and Industry 4.0 maturity models and analysed their fit for SMEs, M€ uller, Buliga, and Voigt (2018) studied how Industry 4.0 impacts manufacturing SMEs' business models, and Moeuf, Pellerin, Lamouri, Tamayo-Giraldo, and Barbaray (2018) conducted a literature review of Industry 4.0 issues concerning SMEs.
The third largest cluster (#2), labelled "Digital technologies", has 37 members and a silhouette value of 0.901.The mean year of this cluster is 2017.This cluster includes the top research topics: digital technologies, digital-related capabilities, shaping digital innovation, export management and small-sized firms' practice.The main cited article of the cluster is by Nasiri et al. (2020), which explored the conditions under which digital innovation opportunities emerge in small and medium enterprises.The authors followed a quantitative research method, collecting data through survey questionnaires distributed  (2018), conducted a longitudinal analysis of a business-to-business (B2B) company's journey to enact its business-to-consumer (B2C) digital strategy through a dynamic capabilities approach.
The fourth largest cluster (#3), labelled "Entrepreneurial ecosystem", has 35 members and a silhouette value of 0.773.The mean year of this cluster is 2018.This cluster includes the following top research topics: entrepreneurial ecosystem, digital transformation era, sustainable digital transformation, volatility, uncertainty, complexity and ambiguity (VUCA) environment and dynamic capability.The main cited article of the cluster is by Khurana, Dutta, and Singh Ghura (2022), which focused on adopting digital technologies by small and medium enterprises to build their resilience during a crisis.The study highlights how SMEs shift their focus from the core to the periphery of their organisational boundaries to develop resilience and dynamically transform their businesses.This cluster underscores the importance of the first-order dynamic capabilities of sensing, seizing and transforming in enhancing SMEs' resilience during a crisis.The most cited members in this cluster are: Warner and W€ ager (2019) explored how incumbent firms in traditional industries built dynamic capabilities for digital transformation, Coreynen, Matthyssens, and Van Bockhaven (2017) explained how digitisation can enable servitisation for manufacturing SMEs, and Eller, Alford, Kallm€ unzer, and Peters (2020) studied how digitalisation can impact SME performance considering information technology, employee skills and digital strategy.
The fifth largest cluster (#4), labelled "Ecosystemic perspective", has 33 members and a silhouette value of 0.956.The mean year of this cluster is 2016.This cluster includes the following top research topics: Ecosystemic perspective, conceptualising digital transformation, funded support unit, procedure model and supporting digital transformation.The main cited article of the cluster is by Pelletier and Cloutier (2019), which examined the IT issues perception within an ecosystem that includes entrepreneurs, IT professionals and socioeconomic support professionals.The study underscores the need for a shared understanding of IT challenges among stakeholders and highlights the potential of conceptual representations to support policymaking and strengthen IT-related support for small and medium enterprises.The most cited members in this cluster are: Matt, Hess, and Benlian (2015) established a relationship between digital transformation strategy and other corporate strategies, Goerzig and Bauernhansl (2018) presented the foundation for the development of a method for holistic planning of the digital transformation in mechanical engineering SMEs, and Scuotto, Del Giudice, Bresciani, and Meissner (2017) investigated three key factors that are likely to determine the preference for informal inbound open innovation (OI) modes in small and medium enterprises in the United Kingdom.
The sixth largest cluster (#5), labelled "Systematic review", has 27 members and a silhouette value of 0.873.The mean year of this cluster is 2020.This cluster includes top research topics: Systematic review, technology adoption, transformation roadmap, precipitative effect and open innovation.The main cited article of the cluster is by Ghobakhloo, Iranmanesh, Vilkas, Grybauskas, and Amran (2022), which conducted a systematic literature review to identify technological, organisational and environmental determinants of Industry 4.0 technology adoption in small and medium enterprises.The authors developed a digitalisation roadmap that describes the necessary conditions for facilitating SMEs' digitalisation under Industry 4.0.The most cited members in this cluster are: Horv ath and Szab o (2019) explored how top executives interpret the concept of Industry DTS 4.0, the driving forces for introducing new technologies and the main barriers to Industry 4.0 in small and medium enterprises, Denicolai, Zucchella, and Magnani (2021) studied the impact of Artificial Intelligence readiness on the international performance of SMEs, and Troise (2022) studied how organisational agility has a positive impact on SMEs' performance.
The seventh largest cluster (#6), labelled "Critical success factor", has 16 members and a silhouette value of 0.831.The mean year of this cluster is 2019.This cluster includes the following top research topics: critical success factors, SME wineries, technology adoption strategies, grape harvesting and sensing technologies' role.The main cited article of the cluster is by Teng, Wu, and Yang (2022), which studied the impact of digital technology, employee digital skills and digital transformation strategy in small and medium enterprises.The authors used a structural equation model to analyse 335 questionnaires and identify the key factors that affect SME performance in the Chinese context.The most cited members in this cluster are: B€ uy€ uk€ ozkan and G€ oçer (2018) reviewed the state-of-the-art of existing digital supply chain (DSC) to identify key limitations and prospects in DSC, Chanias, Myers, and Hess (2019) studied how a European financial services provider has formulated and implemented a digital transformation strategy, and Soto-Acosta (2020) explored the impact of the COVID-19 pandemic on digital transformation in organisations.
We switched to a timeline view of the co-occurrence network to appreciate the years in more detail (see Figure 2).Cluster 0 runs from 2018 to 2022 (5-year period), Cluster 1 runs from 2015 to 2021 (7-year period), Cluster 2 runs from 2015 to 2020 (6-year period), Cluster 3 runs from 2016 to 2022 (7-year period), Cluster 4 runs from 2014 to 2018 (5-year period), Cluster 5 runs from 2017 to 2022 (6-year period) and Cluster 6 runs from 2018 to 2022 (5-year period).Based on duration, the two longest-lasting clusters are Cluster 1 and Cluster 3. The active clusters up to and including 2022 are Cluster 0, cluster 3, cluster 5 and Cluster 6.
Regarding the research question, there is a growth in the number of publications that have studied the digital transformation process in small and medium enterprises, showing a niche of researchers interested in the flourishing research topic.Likewise, SMEs intend to adopt digital technologies to be competitive and increase their productivity (Ghobakhloo & Iranmanesh, 2021).The researchers have used technology adoption frameworks and statistical models based on adopter perceptions to study the factors affecting digital transformation in SMEs, developed guides to guide companies and proposed frameworks or maturity models to assess the technological readiness of small and medium businesses.Among the technologies that SMEs have adopted are Artificial Intelligence, Big Data, Cloud Computing, Data Analytics, Electronic Commerce and the Internet of Things, which allows us to appreciate the technology adoption capacity of SMEs when they have the guidance of a CIO leading the digital transformation process.

Burst references analysis.
Identifying the most active research areas in digital transformation for SMEs can provide insights into this field's evolving topics and research trends.Publications related to digital transformation in SMEs started to emerge in 2016, and as the years passed, the number of available publications on the topic increased.One way to identify these areas is by analysing citation bursts, which reflect works that have received a sudden surge in citations over a short period, indicating increased attention from researchers.These bursts can help trace the development of the research focus over time.Table 8 presents a list of the references with the strongest citation bursts identified in the literature, offering valuable insights into the most active research topics in digital transformation for SMEs.We can appreciate the seven burst references graphically in Figures 1 and 2.
3.2.3Top 10 co-citation references.Regarding the most co-cited references on digital transformation in small and medium enterprises, Table 9 presents the top 10 co-citation references.The purpose and citation behaviour of the top 10 co-citation references is below.
Vial ( 2019) conducted a literature review on digital transformation based on the review of 282 documents, which were the basis for building a framework for digital transformation and  Mittal et al. (2018) reviewed Smart Manufacturing (SM) and Industry 4.0 maturity models, recognising the specific requirements of small and medium enterprises.The authors presented the characteristics of SMEs and identified research gaps that scientific literature must address to support manufacturing SMEs in their progress towards Industry 4.0 successfully.The document has received 503 citations in Scopus, mainly for publications in engineering, computer science, business, management, accounting, decision sciences and social sciences.The largest number of citations was achieved in 2022, with 170 citations.Li et al. (2018) studied how entrepreneurs of small and medium enterprises with inadequate capabilities and limited resources drove digital transformation in their companies.The author conducted qualitative research on the digital transformation of seven SMEs on the Alibaba digital platform, concluding that digital platform service providers can help SMEs transform and compete.The document has received 400 citations in Scopus, mainly for publications in engineering, business, management, accounting, computer science, decision sciences and social sciences.The largest number of citations was achieved in 2022, with 135 citations.Verhoef et al. (2021) identified three stages of digital transformation: digitisation, digitalisation and digital transformation.The authors delineated growth strategies for digital firms and the assets and capabilities required to transform digitally successfully.In addition, they provided a research agenda to stimulate and guide future research on digital transformation.The document has received 744 citations in Scopus, mainly for publications in business, management, accounting, computer science, engineering, social sciences, economics, econometrics and finance.The largest number of citations was achieved in 2022, with 327 citations.
M€ uller et al. (2018) analysed how Industry 4.0 impacts manufacturing SMEs' business models by conducting qualitative research with 68 German SMEs from three industries (automotive suppliers, mechanical and electrical engineering and ICT companies).The authors delineated four SME categories to help managers evaluate their company's positioning towards Industry 4.0: craft manufacturers, preliminary stage planners, Industry 4.0 users and full-scale adopters.The document has received 579 citations in Scopus, mainly for publications in business, management, accounting, engineering, computer science, social sciences and decision sciences.The largest number of citations was achieved in 2022, with 184 citations.Moeuf et al. (2018) conducted a literature review about Industry 4.0 and small and medium enterprises to identify the targeted performance objectives, the required managerial capacities and the selected group of technologies for each selected case.The results show that SMEs do not exploit all the resources for implementing Industry 4.0 and often limit themselves to adopting digital technologies such as Cloud Computing and the Internet of Things.The document has received 590 citations in Scopus, mainly for publications in engineering, business, management, accounting, computer science, decision sciences and social sciences.The largest number of citations was achieved in 2022, with 161 citations.
Ulas (2019) provided a comprehensive view of the factors affecting the digital transformation process and described the digital transformation of the manufacturing sector in Turkey.The findings indicate that SMEs exhibit erratic investment patterns in information and communications technology and require external assistance to incorporate digital transformations into their overall business strategy.The document has received 110 citations in Scopus, mainly for publications in computer science, business, management, Digital transformation in SMEs accounting, social sciences, engineering, economics, econometrics and finance.The largest number of citations was achieved in 2022, with 57 citations.Garzoni, De Turi, Secundo, and Del Vecchio (2020) analysed how digital technologies trigger changes in the business processes of manufacturing small and medium enterprises in the Apulia Region (South Italy).The authors examined the enablers of Industry 4.0 in a regional context characterised by delays in research and development and innovation performance.The results introduce a four-level approach to the engagement of SMEs in adopting digital technologies: digital awareness, digital requirement, digital collaboration and digital transformation.The document has received 88 citations in Scopus, mainly for publications in business, management, accounting, computer science, social sciences, engineering, economics, econometrics and finance.The largest number of citations was achieved in 2022, with 42 citations.Matarazzo, Penco, Profumo, and Quaglia (2021) examined the impact of digital transformation on customer value creation in small and medium enterprises.The authors used multi-case study research on the digital transformation of six Made in Italy SMEs.The results show that, for the selected SMEs, digital instruments contribute to the innovation of their business model by creating new distribution channels and new ways to create and deliver value to customer segments.The document has received 221 citations in Scopus, mainly for publications in business, management, accounting, computer science, social sciences, engineering and decision sciences.The largest number of citations was achieved in 2022, with 104 citations.Cenamor et al. (2019) examined the effect of digital platform capability and network capability on SMEs' financial performance.The authors analysed 230 SMEs.The results indicate that digital platform capability positively affects small and medium enterprises' performance via network capability.The document has received 229 citations in Scopus, mainly for publications in business, management, accounting, computer science, social sciences, economics, econometrics, finance and decision sciences.The largest number of citations was achieved in 2022, with 92 citations.
In summary, the top 10 co-citation references focused mainly on the construction of frameworks and maturity models to measure the readiness of SMEs, the impact of Industry 4.0 on small and medium enterprises, the development of guides to help managers evaluate their positioning towards Industry 4.0, the development and implementation of digital business strategies for SMEs, the presentation of cases of SMEs that have driven digital transformation and future research opportunities.The top 10 is led by a literature review, showing the document's usefulness for researchers working on digital transformation in SMEs.Regarding the citations received, the documents generated considerable interest in 2022, receiving many citations from various areas of knowledge.

Discussion
Digital transformation is a topic that has gained importance for small and medium enterprises worldwide, leading to a significant increase in the scientific production of digital transformation in SMEs.Before undertaking the scientometric analysis, a preliminary review of the domain of digital transformation in SMEs was conducted.This review illustrated various publication trends, the top 10 most productive countries, the top 10 sources publishing about digital transformation in SMEs, the top 10 authors in digital transformation in SMEs, the top 10 most productive affiliations and the top 10 most frequently used keywords.Subsequently, using CiteSpace, the scientometric analysis was performed to identify research trends, clusters and hotspots in the literature, allowing us to appreciate how SMEs have begun to face digital transformation processes when adopting digital DTS technologies, such as Artificial Intelligence, Big Data, Cloud Computing, Data Analytics, Electronic Commerce and the Internet of Things.
This literature review is a valuable reference point for stakeholders interested in exploring digital transformation within small and medium enterprises.Compared to related studies found in the literature, our distinctive contribution lies in utilising CiteSpace for conducting scientometric analysis.We examined a total of 448 documents, encompassing 21,676 references.Building upon prior research identified in the literature, this field of study represents a relatively recent research focus that has gained significant traction in recent years, underscoring the pivotal role of SMEs in the social and economic development of nations.It is worth noting that our information retrieval was exclusively conducted using the Scopus database.In future endeavours, we may consider exploring data from the Web of Science as well.
Regarding studies in the literature, Bin et al. (2021) identified the factors influencing the digital transformation of SMEs using the TOE model.Through our scientometric analysis, we identified foundational studies that employed technology adoption frameworks and statistical models, focussing on adopter perceptions, to examine the factors affecting digital transformation in SMEs.This analysis highlighted the ongoing need to explore the determinants of digital transformation within SMEs.Notably, technology readiness-a company's capability to adopt, utilise and benefit from information and communication technologies while adapting to technological changes to remain competitive-emerges as a pivotal factor.The technology readiness level can dictate how an SME incorporates digital technologies to revamp its business model.For instance, a low level of technology readiness in decision-making regarding digital technology adoption is often tied to a CEO's limited awareness of digital technologies, an underdeveloped technological infrastructure and a workforce with minimal or no digital skills for utilising such technologies.
Another notable research area is the nexus between digital transformation and sustainable development (Philbin et al., 2022).Digital transformation transcends technological advancement, presenting a golden opportunity to usher in a more sustainable era.By harnessing efficiency in utilising corporate resources, businesses can diminish waste, streamline production and achieve dual benefits: minimised environmental impact and heightened profitability.Enhanced data monitoring and management, bolstered by cutting-edge technologies like the Internet of Things and big data analytics, pave the way for decisions rooted in rich insights and empower organisations to precisely gauge their ecological footprint and adopt proactive measures to curtail it.The concept of a circular economy gains momentum from digitalisation.It encourages the design of products and services primed for reuse and recycling, tapering the strain on natural resources and curbing waste accumulation.The proliferation of digital services, exemplified by electronic banking, negates the demand for expansive physical infrastructure.This translates to a reduction in material and energy consumption.In conclusion, embracing digital strategies in SMEs has become a potent tool for curtailing carbon emissions.By championing practices such as telecommuting and virtual collaborations, the reliance on physical commutes diminishes, thereby attenuating the overarching carbon footprint.
As we delve into the trajectory of digital transformation within SMEs, it becomes evident that the infusion of digital technologies plays a pivotal role in enhancing their operational prowess (Cenamor et al., 2019;Denicolai et al., 2021).The integration of these technologies not only streamlines operations and processes but also amplifies the financial gains of the enterprise.At the heart of this transformation is organisational agility-the inherent ability of a firm to agilely navigate environmental shifts, tackle unforeseen challenges and capitalise on emergent opportunities.Such agile entities invariably position themselves as resilient front-runners in volatile markets.Supporting this notion, numerous research findings underscore a tangible link between digital transformation and augmented corporate financial outcomes.Companies that seamlessly weave digital technologies into their operational fabric often register amplified revenues, achieve optimal resource utilisation and elevate customer satisfaction-all of which cumulatively fuel sustained profitability and expansion.
From the findings, it is evident that SMEs have ripe opportunities to embark on their digital transformation journeys, guided by experienced CIOs.In ICT policies, the widespread adoption of state-of-the-art digital technologies, like artificial intelligence and the Internet of Things, is gaining prominence.Consequently, it is imperative for governmental bodies, under the support of the Ministry of Information Technology and Communications, to formulate and implement strategic policies that propel SMEs towards digital transformation.This not only augments their performance but also stimulates innovation, bolsters productivity and equips them to rival more established enterprises.A promising avenue for subsequent research is to explore the strategies SMEs employ to prime themselves technologically, ensuring seamless integration and optimisation of these emergent digital tools.

Conclusion and future work
Digital transformation in SMEs has gained importance in recent years, showing the need to strengthen the theoretical background on the subject so that more and more SMEs can adopt digital technologies aligned with their business model, strengthening productivity and competitiveness.It should be noted that adopting digital technologies is associated with technology readiness, which refers to the organisation's ability to adopt, use and benefit from digital technologies.Based on the literature review, we identified some earlier experiences of small and medium enterprises adopting digital technologies, such as Cloud Computing, the Internet of Things and Artificial Intelligence.These previous experiences have made SMEs explore the digital ecosystem and acquire ICT resources.Companies have contemplated security and privacy issues, allocated a budget for modernising, implementing and maintaining digital technologies and training employees with digital skills.
The overview of the field of digital transformation in SMEs explored the following analysis: the publication trend in the research topic, the top 10 most productive countries, the top 10 sources that published about digital transformation in SMEs, the top 10 authors in digital transformation in SMEs, the top 10 most productive affiliations and the top 10 keywords related to the research topic.Meanwhile, with the scientometric analysis, we conducted the following analysis: the co-cited reference network, the burst references analysis and the top 10 co-citation references.Both analyses were essential to identify primary studies that the scientific community can explore to continue advancing the definition of digital transformation strategies aimed at small and medium enterprises.Regarding the research question based on the analyses carried out, the growth in the number of publications is appreciated, which demonstrates the scientific community's interest in studying and contributing strategies to support the digital transformation of SMEs.
In summary, the paper is a valuable resource for academics and researchers in Information Systems, decision-makers in digital transformation in small and medium enterprises and governmental organisations concerned with digital technologies adoption in SMEs to achieve digital transformation and increase competitiveness and productivity.The field of digital transformation in small and medium enterprises is just beginning to flourish, and this document can be a guide for researchers starting on the subject of study, CIOs of small and medium enterprises and policymakers.For future work, the authors will explore specific case studies of adopting technological trends such as the Internet of Things and Artificial Intelligence in small and medium enterprises to identify adoption barriers and define digital transformation strategies by technological trend.Likewise, the authors will propose digital transformation strategies aimed at SMEs considering the role of the CIO to achieve the technology readiness of SMEs.

DTS
DTS 3.1.5Top 10 most productive affiliations.Table

third in the ranking) reports five published documents, which have received 183 citations and an average citation rate per document of 36.60. Pelletier, C. (eighth in the ranking) reports four published documents, which have received 57 citations and an average citation rate per document of 14.25. The high average citation rate per document shows the authors' impact in the digital transformation field in SMEs.
Table 3 presents the most productive sources that have published documents about digital transformation in SMEs.The total number of documents published by the top 10 sources is 113 (25.22% of the total documents), which adds up to 1,313 citations, equivalent to 25.41% of the total citations.The results indicate that Sustainability Switzerland, Procedia CIRP and the Journal of Business Research are leading in the number of publications, with 32, 15 and 12 papers

Table 5 .
Top 10 most productive affiliations

Table 6 .
Top 10 keywords Digital transformation in SMEs Digitisation, COVID-19 and Sustainable Development.A possible interpretation of the occurrences of the identified keywords in the literature is that Digital Transformation has been a priority and recurrent topic.In addition, there was a growing interest among small and medium enterprises (SMEs) in digital transformation to guide SMEs to adopt digital technologies.Industry 4.0 has also been researched, albeit less than digital transformation, which allowed us to identify among the keywords some technological trends, such as Artificial Intelligence, Big Data, Cloud Computing, Data Analytics, Electronic Commerce and the Internet of Things.Digitalisation is another important topic, although less relevant than digital transformation.The adoption of digital technologies is also an emerging topic.Innovation, manufacturing, digitisation, COVID-19 and sustainable development have also been mentioned in business literature, but to a lesser extent than digital transformation.
Bouwman, Nikou, and de Reuver (2019) that human, technical and innovation capabilities contribute to market offerings, while human, collaboration and technical capabilities contribute to the business process.The most cited members in this cluster are: Cenamor, Parida, and Wincent (2019) studied how entrepreneurial SMEs can enhance their performance through digital platforms,Bouwman, Nikou, and de Reuver (2019)studied how SMEs experiment with business model innovation, and Yeow, Soh, and Hansen

Table 9 .
Top 10 co-citation references DTS offering a research agenda for future research on digital transformation.The document has received 1,376 citations in Scopus, mainly for publications in business, management, accounting, computer science, social sciences, engineering and decision sciences.The document achieved the largest number of citations in 2022, with 539.