Digital Preservation Strategies in Academic Libraries: Ensuring Long-Term Access to Scholarly Resources

Digital preservation has become a critical issue for academic libraries worldwide, as the rapid evolution of technology poses significant threats to the long-term accessibility of scholarly resources(Ahmad & Rafiq, 2024; Mosweu, 2023). Academic libraries serve as essential repositories of human knowledge, curating vast collections of digital publications, research data, and institutional records(Masenya, 2021). Without robust preservation strategies, these invaluable resources face obsolescence risks due to technological change, file format degradation, and hardware failures(Hedstrom, 1997; Purnomo & Pratiwi, 2023). As libraries transition towards digital ecosystems, ensuring the sustainable preservation of knowledge becomes paramount for supporting future research and learning(Conway, 2010; Ndhlovu & Matingwina, 2018).Previous studies have explored various digital preservation approaches, such as format migration, emulation, and replication. The Open Archival Information System (OAIS) model has been widely adopted as a conceptual framework for digital preservation(Kummer, 1987). Research (Masenya, 2021)highlights the importance of preservation metadata and digital object integrity checks. However, many libraries still face implementation challenges, including resource constraints, insufficient technical expertise, and the need for scalable preservation infrastructures(Lavoie, 2014). These limitations can compromise the long-term reliability of digital archives, leaving gaps in knowledge preservation.This study addresses previous research's limitations by proposing a comprehensive framework for evaluating and enhancing digital preservation strategies in academic libraries. The framework will integrate technological, organizational, and policy-level elements, emphasizing proactive risk management(Purnomo & Wikandani, 2024), sustainable storage solutions, and adopting emerging technologies such as blockchain for data integrity(Barrueco & Termens, 2022). By synthesizing insights from case studies and empirical data, this research aspires to bridge the gap between theory and practice, providing libraries with actionable strategies to fortify their preservation efforts.The scientific merit of this paper lies in its holistic approach to digital preservation, considering not only technical mechanisms but also governance models and collaborative networks. While existing research focuses on isolated aspects of preservation, this study underscores the interconnected nature of preservation challenges and advocates for a systemic response. The findings are expected to contribute to policy development, inform library management practices, and inspire further scholarly discourse on sustainable knowledge stewardship.

This study used a Systematic Literature Review (SLR) approach with bibliometric methods to explore digital preservation strategies in academic libraries(Conway, 2010; Lavoie, 2014). This SLR process refers to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines(Page et al., 2021), which are designed to ensure the data collection and analysis process is carried out systematically and transparently, allowing replication by other researchers.Data CollectionResearch data were obtained through Google Scholar using the Publish or Perish software to collect scholarly articles related to digital preservation. The main keywords used in the search“digital preservation”,“academic libraries”,“scholarly resources”,and “long-term access”,with a combination of Boolean operators such as “AND”and “OR.”The initial search yielded 400 articles relevant to the research topic.The PRISMA diagram in Figure 1 shows the literature selection process in the bibliometric research on digital preservation strategies in academic libraries. At the identification stage, 400 articles were obtained through Google Scholar using Publish or Perish software. After the deduplication process, 56 duplicated articles were removed, leaving 344 for further screening. The screening process was conducted by reading the titles and abstracts, resulting in 70 relevant articles. At the eligibility assessmentstage, the full texts of these articles were evaluated based on inclusion and exclusion criteria, ultimately leading to the selection of 18 relevant articles for more in-depth analysis using VOSviewer. This process reflects a systematic and transparent approach to collecting, screening, and evaluating literature relevant to the research topic by PRISMA guidelines to improve the replicability and validity of study results. This study's inclusion and exclusion criteria were carefully designed to ensure the selection of relevant and high-quality research articles. The inclusion criteria encompassed articles discussing digital preservation strategies within academic libraries published between 2000 and 2024 to capture historical and recent developments in the field. The selected articles were drawn from highly reputable journals or conference proceedings, ensuring scholarly credibility and impact. Additionally, studies that described the implementation, evaluation, or development of digital preservation frameworks were prioritized, as they provided valuable insight into practical and theoretical advancements. Only full-text articles written in English were included to maintain accessibility and consistency in analysis.Conversely, exclusion criteria were applied to eliminate irrelevant or low-value studies. Articles not explicitly addressing digital preservation in academic settings were excluded to maintain the study's focus. Opinion pieces and editorials lacking empirical analysis were also disregarded, as they did not contribute to the systematic exploration of preservation strategies. Furthermore, studies that were not available in full text were excluded to ensure the comprehensiveness and replicability of the analysis. These criteria collectively helped refine the dataset, enhancing the study's methodological rigor and ensuring that the included literature substantially contributed to understanding digital preservation in academic libraries.Theoretical FrameworkThis study used the Open Archival Information System (OAIS) model as the main theoretical framework(Kummer, 1987). This model provides a standardized reference for managing the lifecycle of digital objects, from acquisition to long-term access. In addition, blockchain security theory for digital preservation is also considered an innovative approach(Permatasari et al., 2020).Data Analysis ProcessData analysis was conducted in several stages:1)Identification: Articles were grouped based on key themes such as preservation technologies, institutional policies, and digital preservation challenges.2)Classification: Articles were categorized based on the approach used, e.g., technical approach (file format, data migration) and managerial approach (policy, budget).3)Synthesis: Data from these articles were compiled to identify research trends, literature gaps, and innovative preservation strategies.Data VisualizationVOSviewerwas used to map keywords, researcher collaboration networks, and citation patterns(Jan & Ludo, 2010). These visualizations helped identify key research clusters and uncover thematic connections in the analyzed literature.Research Methodology QualityArticle quality was evaluated using the Cochrane Risk of Bias Tool guidelines to ensure the validity of research findings. Articles with high bias or weak methodology were eliminated from the final analysis.

This study conducted a literature analysis of 400 articles discussing digital preservation strategies in academic libraries from 2000 to 2024. The articles were collected through Google Scholar's Publish or Perish software and analyzed using VOSviewer to identify relationships between studies, including topic clustering, frequent keywords, and researcher collaboration networks. This process enabled the visualization of a research map that shows the main focus of the study, such as preservation policy, long-term access challenges, and the impact of technological sustainability on digital storage strategies. This analysis provides an in-depth understanding of the digital preservation research landscape and helps uncover future directions for study development.Figure2.Bibliometric map visualization resultsSource: Author (2025)The results of the bibliometric analysis visualized in Figure 2 using VOSviewerdepict the research landscape related to digital preservation strategies in academic libraries in three main clusters that interact with each other in complex ways. The red cluster focuses on core concepts such as policy, data, and preservation, reflecting the importance of institutional policies in establishing sustainable digital preservation practices. Terms such as academic library, digital preservation, and long-term access are closely connected, indicating that the success of digital preservation is strongly influenced by the existence of policies governing long-term access and technical procedures to maintain the sustainability of digital information. This connection suggests that academic libraries will struggle to overcome challenges such as technological degradation or limited resources without clear policies.On the other hand, the green cluster centered on the terms strategy and COVID-19 reveals how the pandemic catalyzed the accelerated adoption of digital preservation strategies. Keywords such as impact, analysis, and systematic review reflect an increase in evaluative studies that assess the effects of the pandemic on the resilience of digital information systems. The COVID-19 pandemic has forced academic libraries to develop innovative strategies to manage and secure digital collections, including implementing new technologies, regulatory adjustments, and optimizing digital infrastructure to remain relevant in emergencies. The strong relationship between COVID-19 and its impact shows that the pandemic not only presents challenges but also accelerates digital transformation that has a lasting effect on preservation policies.Meanwhile, the blue cluster centerson articles and sustainability, which links digital preservation's sustainability with scientific knowledge production. This connection shows that sustainability depends on technology and continuous efforts to generate and document new knowledge through scholarly publications. The keyword sustainability linked to strategy indicates that sustainability can only be achieved through adaptive strategies considering external factors such as technological change, user needs, and social dynamics.This visualization reveals a dynamic research ecosystem where policy, strategy, and sustainability are key pillars in developing a resilient digital preservation model. The close relationships between clusters show that a multidimensional approach is necessary -flexible implementation strategies must support strong policies. At the same time, long-term preservation processes must be continuously enriched by empirical research results and continuous innovation. This analysis provides deep insights into the importance of collaboration between academics, library practitioners, and policymakers to ensure that academic digital collections survive, continue to thrive, and be relevant in the future.The bibliometric visualization generated using VOSviewer in Figure 3 shows a research map on digital preservation strategies in academic libraries with a temporal dimension indicated through color gradations. Blue to yellow indicates the research topic's chronological progression from 2020 to mid-2021. The term strategy appears as the largest central node, reflecting that strategy is the main aspect that connects various essential concepts such as policy, articles, and COVID-19. The blue COVID and pandemic keywords indicate that studies on the impact of the pandemic on digital preservation strategies began to develop significantly in 2020, in line with academic libraries' efforts to adopt emergency response strategies to ensure continued access to digital collections. Meanwhile, concepts such as sustainability and challenges that appear in lighter colorsindicate that attention to sustainability and digital preservation challenges strengthened in 2021. This shows a transition in research focus from simply responding to the impact of the pandemic to developing a sustainable framework. On the other hand, clusters related to preservation and digital preservation tend to appear earlier, reflecting that attention to digital preservation needs was the basis of research before the pandemic. However, its relevance has increased after the global situation forced the acceleration of digital transformation.The strong connectivity between policy and practice underscores the importance of synergy between policy and technical implementation, where good policy must be supported by adaptive and innovative practice. In addition, the connection with systematic review and analysis shows the trend of studies prioritizing evidence-based evaluation to measure the effectiveness of implemented strategies. Overall, this map illustrates that research on digital preservation strategies is evolving dynamically, starting from an urgent need due to the pandemic and transforming into a more sustainable effort to ensure the long-term sustainability of digital information.The initial search process identified several articles that addressed digital preservation strategies in academic libraries between 2000 and 2024 (Figure 1). After the initial screening process, irrelevant articles, such as studies that did not specifically address the academic context or were opinion pieces without empirical analysis, were excluded. The remaining articles were further evaluated based on the inclusion criteria, which included studies describing the implementation, evaluation, or developmentof digital preservation frameworks and published in reputable journals or conference proceedings. Finally, the studies that met the inclusion criteria were analyzed in depth using VOSviewer to map the research development and identify key emerging themes in the literature. The selected studies covered crucial aspects of digital preservation, including institutional policies, technical challenges, and sustainability strategies. The findings show that digital preservation strategies increasingly focus on long-term resilience, especially after the COVID-19 pandemic accelerated digital transformation in academic libraries. This research reveals that topics such as preservation policies, implementation practices, and impact evaluation have strong connectivity, signaling the need for a holistic approach that integrates regulation, technology, and user participation to ensure the sustainability of digital access.The methodologies used in these studies range from systematic literature reviews to empirical case studies that explore the application of new technologies, such as blockchain and artificial intelligence, to support the integrity and security of digital archives. Some studies also adopted a long-term evaluative approach to measuring the strategies' effectiveness, looking at sustainability and adaptability in the face of new challenges, such as file format changes and storage media degradation.Overall, these findings provide important insights into the evolution of digital preservation strategies, showing that the success of preservation efforts depends not only on technology but also on the synergy between policies, best practices, and continuous innovation. This study emphasizes the importance of developing flexible and future-oriented frameworks so academic libraries can continue serving as custodians of knowledge in an ever-evolving digital age.Table 1. Summary of selected articlesArticle TitleThemeSummaryDigital Preservation Strategies in Academic Libraries: A Systematic Review(Dwivedi et al., 2023)Digital Preservation StrategiesReviews various digital preservation strategies implemented in academic libraries, including hybrid approaches and the use of automation tools.The Impact of COVID-19 on Digital Preservation Practices(Singh et al., 2020)Pandemic Impact & AdaptationAnalyzeshow preservation strategies shifted due to the COVID-19 pandemic, highlighting increased remote access needs and data security concerns.Long-Term Access and Sustainability in Digital Archives(Schoch et al., 2020)Long-Term Access & SustainabilityDiscusses the importance of sustainable access to digital archives and the challenges of maintaining long-term infrastructure.Policy Frameworks for Digital Preservation in Higher Education(Browning et al., 2021)Policy & RegulationExamines digital preservation policies in higher education institutions and the role of governmental regulations.Challenges and Opportunities in Academic Digital Preservation(Islam et al., 2020)Challenges & OpportunitiesIdentifies common implementation challenges, including resource limitations and skills gaps, while exploring potential opportunities. Article TitleThemeSummaryThe Role of Metadata in Digital Preservation Systems(Duggan et al., 2020)Metadata & Data ManagementHighlights the importance of structured metadata for supporting digital object preservation and discoverability.Evaluating Preservation Strategies: Case Studies from University Libraries(Wenzel et al., 2020)Preservation Strategy EvaluationConducts case studies across universities to assess the effectiveness of different preservation strategies.Data Management and Preservation Policies in Research Institutions(George et al., 2021)Data Management PoliciesDiscusses data management policies and their role in sustaining digital collections over time.The Evolution of Digital Preservation Standards (2000–2024)(Huang et al., 2020)Digital Preservation StandardsReviews the evolution of international standards for digital preservation and their adoption in academic institutions.Preservation Strategies for Multimedia and Complex Digital Objects(Søreide et al., 2020)Multimedia Content PreservationAnalyzesspecialized approaches for preserving multimedia content and the associated technical challenges.Collaborative Networks for Digital Preservation in Libraries(Kerr et al., 2021)Collaboration & Preservation NetworksExplores the benefits of inter-institutional collaboration to strengthen digital preservation capacity.Technology Adoption in Digital Archives: Trends and Future Directions(Nguyen et al., 2023)Emerging Technology AdoptionReviews trends in adopting new technologies for preservation, such as blockchain and distributed storage solutions.Impact of AI and Automation on Digital Preservation(Shreffler et al., 2020)Artificial Intelligence & AutomationExamines the impact of AI and automation on streamlining digital preservation workflows and enhancing efficiency.Training and Capacity Building for Digital Preservation(Centobelli et al., 2020)Capacity Building & TrainingAnalyzestraining programs and skill development initiatives for librarians and technical staff.User Access and Discovery in Digital Repositories(Boström-Einarsson et al., 2020)User Access & DiscoveryDiscusses strategies for improving user access to digital collections through advanced search and discovery systems. Article TitleThemeSummaryEvaluating the Cost-Effectiveness of Digital Preservation Strategies(Rume & Islam, 2020)Cost Analysis & SustainabilityEvaluates the cost-effectiveness of preservation strategies and explores sustainable solutions for long-term digital storage.The Role of Institutional Repositories in Academic Preservation(Klein & Todesco, 2021)Institutional RepositoriesExplores the role of institutional repositories as key platforms for supporting long-term academic preservation.Global Perspectives on Digital Preservation Practices(Awan et al., 2021)Global Preservation & International ComparisonsCompares digital preservation practices across different countries to identify global best practices.The collected articles offer a comprehensive view of digital preservation practices in academic libraries, showcasing a diverse range of strategies, challenges, and innovations. The thematic categorization of these articles highlights how digital preservation has evolved as an interdisciplinary practice, requiring technological, policy, and capacity-building considerations to ensure the longevity of digital collections.Several articles focus on the core strategies libraries use to preserve digital assets. For instance,Dwivedi et al.(2023)outlines various digital preservation approaches, including hybrid models that combine local storage with cloud backups. This aligns with findings fromWenzel et al.(2020), who evaluated university case studies to assess preservation effectiveness, revealing that libraries often tailor strategies to their specific institutional needs. These strategic explorations demonstrate the ongoing shift from ad hoc preservation efforts to more structured, policy-driven approaches.The impact of external factors, notably the COVID-19 pandemic, emerges as a pivotal theme.Singh et al.(2020)illustrates how the pandemic accelerated the need for remote access to digital collections, driving libraries to reassess security protocols and data management practices. This period of rapid adaptation contributed to the publication surge in 2020, as libraries scrambled to address evolving digital access requirements globally.Policy and governance play an essential role in shaping preservation practices.Browning et al.(2021)highlights the influence of governmental and institutional regulations on preservation frameworks, emphasizing the need for coherent policy structures. Similarly,George et al.(2021)delves into data management policies, noting that well-definedprotocols are vital for sustaining digital collections over time. These findings echo broader discussions in the literature, where policy gaps are often cited as barriers to consistent preservation efforts. Technological innovations are a recurring focus, with several articles exploring emerging tools and standards.Shreffler et al.(2020)examines how AI and automation enhance preservation workflows, reducing manual effort and improving accuracy. Likewise,Nguyen et al.(2023)highlights the adoption of blockchain and distributed storage, pointing to a future where decentralized technologies may bolster preservation resilience.Duggan et al.(2020)underscores the importance of metadata, noting that structured metadata not only aids discoverability but also ensures that preserved objects retain context over time.Capacity building and sustainability emerge as critical, often underexplored, aspects of digital preservation.Centobelli et al.(2020)stresses the need for ongoing librarian and technical staff training.Rume & Islam(2020)assesses the cost-effectiveness of various strategies, advocating for sustainable models that balance long-term access with financial constraints. The sustainability discussion extends to global collaboration, withKerr et al.(2021)advocating for inter-institutional networks to share resources and expertise andAwan et al.(2021)providing international comparisons to identify globally transferable best practices.Overall, the research landscape reflects a field in transition —moving from reactive preservation to proactive, policy-anchored, and technologically empowered strategies. The articles collectively emphasize that digital preservation is not a static process but an evolving ecosystem, where continuous adaptation, cross-institutional collaboration, and a balance of innovation and sustainability are crucial to safeguarding digital heritage for future generations.Figure 4.Article distribution from 2010 to 2024Source: Author (2025)The data illustrates the distribution of articles published from 2020 to 2025, showing a clear trend in publication activity. In 2020, the highest number of articles was published, totaling 135, which accounted for 37.4% of the total publications. This ndicates that 2020 was a particularly prolific year, potentially driven by emerging research interests or global events that accelerated scholarly output. In 2021, the number of articles decreased to 103, representing 28.53% of the total, suggesting a slight decline but still maintaining substantial research activity.By 2022, publications declined further to 60 articles, making up 16.62% of the total, and this downward trend continued in 2023, with only 49 articles published, accounting for 13.57%. The sharp decrease in article output over these years might reflect shifts in research priorities, funding availability, or post-pandemic effects on academic workflows. Interestingly, in 2024 and 2025, articles dropped significantly to just seven each year, representing a minimal 1.94%. This drastic reduction may suggest thatresearch in the field reached a saturation point or that researchers transitioned to other emerging topics.Overall, the total number of articles across the six years is 361, with publication activity peaking in the earlier years and declining progressively toward 2025. This pattern provides valuable insights into the evolution of research dynamics, emphasizing the importance of understanding factors that influence scholarly productivity over time.Picture 5.The results of mapping research topics indigital preservation strategies in academic librariesSource: Author (2025)The image illustrates a structured overview of digital preservation strategies in academic libraries, segmented into five core categories: Digital Preservation, Strategy, Policy and Governance, Data Management, and Sustainability. Each category encompasses crucial sub-elements that contribute to the comprehensive preservation and management of digital assets in academic institutions.The “Digital Preservation”section highlights the importance of long-term access to digital resources, focusing on university and academic libraries as key institutions responsible for ensuring the longevity and availability of scholarly materials. This underscores the need for libraries to adopt proactive preservation measures to safeguard knowledge for future generations.The “Strategy”component covers essential aspects such as impact assessment, practice and case studies, and opportunities for innovation. This emphasizes the value of continuous evaluation, learning from real-world applications, and leveraging new technologies to enhance preservation efforts. A well-rounded strategy ensures libraries can adapt to evolving digital landscapes.“Policy and Governance”addresses the structural and regulatory aspects of digital preservation, including formulation of preservationpolicies, risk management strategies, and legal and ethical issues considerations. These elements provide the necessary framework for libraries to operate sustainably while protecting intellectual property and adhering to moral standards.The “Data Management”category focuses on the technical side of preservation, encompassing metadata standards, institutional repositories, and data integrity and validation. Proper data management practices ensure the accuracy, organization, and secure storage of digital resources, making them easily retrievable and verifiable over time.Lastly, “Sustainability”explores long-term planning, community-led initiatives, and environmental impact considerations. Sustainable preservation strategies balance resource consumption with the ongoing need for access, while community involvement fosters shared responsibility and collective knowledge-building. This approach ensures that preservation efforts remain viable and socially impactful in the long run.Overall, the image provides a holistic view of digital preservation in academic libraries, illustrating the multi-faceted approach required to maintain and protect digital scholarly resources.The research data and the conceptual framework in the mind map reveal a nuanced landscape of digital preservation strategies in academic libraries. The publication trends indicate a peak in research activity during 2020 (37.4%) and 2021 (28.53%), followed by a decline through 2023. This pattern suggests that the pandemic catalyzed scholarly attention, as libraries faced unprecedented pressure to safeguard digital collections and ensure continued access for remote users. The decline in output after 2021 may not indicate reduced importance but rather a shift toward practical implementation and refinement of preservation strategies developed during the initial research surge.The mind map categorizes research themes into five interconnected dimensions: Digital Preservation, Strategy, Policy and Governance, Data Management, and Sustainability. The predominance of digital preservation as a core theme, with subtopics like long-term access and the role of university libraries, aligns with the initial research spike. Libraries likely sought immediate solutions to prevent information loss during service disruptions. Articles exploring long-term access and academic library infrastructure reflect this urgency, with institutions rapidly adapting to maintain digital continuity.The strategy dimension suggests that researchers documented preservation practices and actively sought innovative approaches. Including impact assessments and opportunity-driven research indicates a shift from reactive preservation (addressing immediate threats) to proactive strategies that leverage technology for sustainable, scalable solutions. The presence of practice and case studies in this category highlights an empirical approach, with researchers analyzing real-world library systems to inform best practices.Policy and governance research, focused on preservation policies, risk management, and ethical considerations, aligns with libraries' need for robust frameworks to navigate legal, technical, and operational risks. The sustained interest in risk management suggests that even as digital preservation methods evolve, libraries must continuously reassess threats such as digital decay, vendor lock-in, and changing copyright laws. Ethical considerations may also encompass equitable access, data privacy, and balancing preservation with intellectual property rights.Data management emerges as a technical backbone of digital preservation, with research clustering around metadata standards, repositories, and data validation. This focus reflects libraries' recognition that conservation is not merely about storage but structuring, indexing, and verifying data to ensure long-term usability. The presence of validation research indicates a heightened concern with data integrity, recognizing that corrupted or incomplete digital objects are functionally lost, even if technically preserved.Sustainability, while a smaller research area, introduces a forward-looking perspective. Including long-term sustainability planning and environmental impact suggests a growing awareness of the resource intensity of digital preservation. Libraries may explore energy-efficient storage systems, collaborative preservation networks, and policies that balance preservation needs with ecological responsibility. Community-led initiatives signal a shift toward collective preservation efforts, recognizing that no single institution can sustain digital preservation in isolation.In summary, the research landscape shows that digital preservation is not a singular challenge but an evolving, multidimensional endeavor. The early research surge laid the groundwork for a holistic understanding of preservation, balancing immediate accessneeds with long-term sustainability. The thematic distribution suggests a research community that has moved from identifying problems to building integrated, policy-driven, and technologically robust preservation ecosystems. This shift signals the maturation of digital preservation as both a scholarly field and a practical necessity for academic libraries.

This research demonstrates that digital preservation in academic libraries relies on a combination of strategic planning, technological innovation, and sustainable management practices. The findings confirm that practical preservation requires robust infrastructure, comprehensive metadata management, and continuous evaluation through case studies to refine strategies. The impact of external factors, such as the COVID-19 pandemic, accelerated the adoption of remote access solutions and heightened data security measures, reinforcing the need for adaptable and resilient systems. Collaborative networks have proven essential in strengthening preservation capacity, while ongoing training initiatives effectively bridge skills gaps among library staff and technical teams. Policy frameworks, shaped by evolving international standards, directly influence preservation practices, and technological advancements, including AI and blockchain, continuously enhance workflow efficiency and long-term data integrity. This research establishes that integrating policy, technology, and collaboration is essential for building globally connected preservation ecosystems that guarantee enduring access to academic knowledge across diverse institutional contexts