The DeLone and McLean Model of Information Systems Success: A TenYear Update WILLIAM H. DELONE AND EPHRAIM R. MCLEAN Review Table of Content: 1. Introduction 2. Model Adoption 3. Model Validation 4. Model Issues 5. Model Extensions 6. Measurement Enhancements 7. Other Success Frameworks 8. Analysis and Recommendations 9. The Updated D&M IS Success Model 10. E-Commerce Success 11. Summary and Conclusions 12. References Introduction: The Information Systems Success Model (IS Success Model) is a framework for understanding and measuring the success of information systems (IS). It was developed by William H. DeLone and Ephraim R. McLean in 1992, and has since become one of the most influential theories in contemporary IS research. [1] The IS Success Model identifies six critical dimensions of IS success: 1. Information quality: The accuracy, relevance, and timeliness of the information produced by the IS. 2. System quality: The technical characteristics of the IS, such as reliability, ease of use, and performance. 3. Service quality: The quality of support provided to users of the IS. 4. System use: The frequency and extent to which users interact with the IS. 5. User satisfaction: The users' overall assessment of the IS. 6. Net benefits: The positive and negative impacts of the IS on the organization. The IS Success Model suggests that these six dimensions of success are interrelated. For example, system quality is expected to lead to higher user satisfaction and use, which can lead to positive net benefits for the organization. The IS Success Model has been used to measure the success of a wide variety of IS, including enterprise resource planning (ERP) systems, e-commerce systems, and customer relationship management (CRM) systems. It has also been used to study the success of IS in a variety of organizational settings, including government agencies, healthcare organizations, and educational institutions. The IS Success Model has been praised for its comprehensive and integrative nature. It provides a framework for understanding the different dimensions of IS success and how they are interrelated. The model has also been praised for its practical implications. It can be used by organizations to develop and implement strategies to improve the success of their IS investments. The IS Success Model has, however, been extended and refined over the years [2]. For example, DeLone and McLean (2003) added a seventh dimension to the model: individual impact. This dimension refers to the impact of the IS on the individual user's performance and productivity. The IS Success Model has also been criticized for its focus on individual user satisfaction. Some argue that the model does not adequately capture the organizational benefits of IS. In response to this criticism, DeLone and McLean (2003) emphasized the importance of the net benefits dimension of the model. The article being reviewed, "The DeLone and McLean Model of Information Systems Success: A Ten-Year Update” by William H. Delone And Ephraim R. Mclean, discusses the DeLone and McLean Model of Information Systems Success and its updates over the past 1 decade. It highlights the adoption and validation of the model, measurement enhancements, the addition of "service quality" and collapsing of "individual impacts" and "organizational impact" into "net benefits" in the updated model. The article also explores the measurement of e-commerce success and provides analysis and recommendations for future research. The overall conclusion is that the updated model provides a solid foundation for measuring IS success, including in the e-commerce environment. One interesting aspect of the paper is the comprehensive review of the research contributions made to the DeLone and McLean Model over the past ten years. The authors analyze various empirical studies that have tested the interrelationships among the dimensions of success in the model. They highlight the significant findings and discuss the implications for understanding and measuring information systems success. This review provides a valuable overview of the validation and enhancement of the model, demonstrating its relevance and applicability in the field. On the other hand, one part of the paper that may be less interesting, and in fact was dreary to me, is the discussion on the level of analysis. The authors address the question of whether the benefits of information systems should be measured from an individual, organizational, industry, or national perspective. While this is an important consideration, it may not be as engaging as other sections of the paper that focus on the dimensions and validation of the model. Furthermore, one aspect of the paper that may be challenging for readers to understand is the technical terminology and concepts related to information systems research. The authors use specific terms such as system quality, information quality, service quality, and net benefits, which may require some background knowledge in the field to fully grasp their meaning. However, the authors provide explanations and examples throughout the paper to aid in understanding these concepts. This paper can be further used as a foundational resource for researchers and practitioners interested in measuring the success of information systems. The DeLone and McLean Model of Information Systems Success provides a comprehensive framework for evaluating the effectiveness of information systems, and the updated version presented in this paper incorporates new dimensions such as service quality and net benefits. Researchers can use this model as a guide for designing studies and developing measures to assess the success of information systems in various contexts. The remaining parts of this review will provide a detailed analysis of each section of the article and summarize the main points of the article. 2 Model Adoption The study conducted a comprehensive and integrative analysis of previous research to identify the determinants of Information Systems (IS) success based on the DeLone and McLean IS Success Model. The researchers examined 140 studies and identified 43 variables that have been posited as determinants of IS success. These variables were grouped into five categories: Task, Individual, Social, Project, and Organizational. The study found several important success factors that consistently influence IS success. These factors include task compatibility, user expectations, management support, and IT infrastructure. Task compatibility refers to the alignment between the IS and the tasks it supports, while user expectations relate to the users' anticipated benefits and outcomes from the IS. Management support plays a crucial role in providing resources and guidance for IS implementation, and IT infrastructure refers to the technological foundation that supports the IS. However, the study also revealed significant gaps in our knowledge of success determinants. Some variables of interest are understudied, and others have generated mixed results due to inconsistencies in measurement. For example, the impact of social variables on IS success is not well understood, and there is a lack of research on the determinants of Information Quality and Service Quality. These gaps highlight the need for further investigation to enhance our understanding of the factors that contribute to IS success. The study provides a roadmap for future research in the field of IS success. It suggests four areas for further investigation: interactions among antecedents, antecedents of specific IS success dimensions, specific antecedents, and project management and IS success. Exploring the interactions among antecedents can help uncover complex relationships and dependencies between different success factors. Investigating the antecedents of specific IS success dimensions can provide insights into the factors that influence each dimension individually. Examining specific antecedents in more detail can help identify their impact on IS success. Lastly, studying project management and its relationship with IS success can provide valuable insights into effective project management practices. The study also highlights the need for future research to validate or invalidate the DeLone and McLean IS Success Model. While the model has received substantial empirical support, there is still room for further validation and refinement. Additionally, the study emphasizes the importance of considering the multidimensional nature of IS success and the need to explore different levels of analysis, types of IS, and contexts to gain a comprehensive understanding of success determinants. In conclusion, this study contributes to our understanding of the determinants of IS success by identifying important success factors and highlighting gaps in our knowledge. It provides a roadmap for future research, guiding researchers towards areas that require further investigation. By addressing these gaps and exploring the suggested research areas, we can enhance our understanding of IS success and assist organizations in implementing successful IS. 3 Model Validation Model validation refers to the process of testing and confirming the accuracy, reliability, and effectiveness of a model. In the context of the DeLone and McLean Model of Information Systems Success, validation involves empirical studies that examine the relationships among the dimensions of success proposed in the model. The model validation process for the DeLone and McLean Model has been extensive and has contributed to its widespread adoption and acceptance in the research community. Numerous empirical studies have been conducted to test the associations among the dimensions of success and to determine if the proposed causal relationships hold true. One important aspect of model validation is the examination of the interrelationships among the dimensions of success. The model proposes that system quality, information quality, service quality, use, user satisfaction, and net benefits are interrelated and influence each other. Empirical studies have tested these relationships and have provided evidence of the associations between the dimensions. For example, research has shown that higher system quality leads to higher user satisfaction and use, which in turn have positive impacts on individual and organizational productivity. The validation process has also involved testing the model in different contexts and with different populations. Studies have been conducted in various industries, organizations, and user groups to ensure the generalizability and applicability of the model. For instance, Seddon and Kiew surveyed users of a university accounting system and found significant relationships between system quality, information quality, user satisfaction, and individual impact. This study demonstrates the validation of the model in a specific context. Furthermore, the validation process has examined the statistical significance of the associations among the dimensions of success. Empirical studies have used statistical techniques such as path analysis and goodness-of-fit tests to determine the significance of the relationships proposed in the model. For example, Rai et al. performed a goodness-of-fit test on the entire D&M IS Success Model based on survey responses from users of a university student information system. The study found that all of the path coefficients among success dimensions were significant, providing further validation of the model. The DeLone and McLean Model of Information Systems Success is a causal model. Unlike a process model, which merely states that B follows A, a causal model postulates that A causes B; that is, increasing A will cause B to increase (or decrease). (Delone & McLean, 2003, p. 12). Hitchcock (2018) defined causal models as “mathematical models representing causal relationships within an individual system or population. They facilitate inferences about causal relationships from statistical data. They can teach us a good deal about the epistemology of causation, and about the relationship between causation and probability. They have also been applied to topics of interest to philosophers, such as the logic of counterfactuals, decision theory, and the analysis of actual causation” [4]. 4 The model validation process for the DeLone and McLean Model of Information Systems Success has involved extensive empirical testing and examination of the relationships among the dimensions of success. The numerous studies conducted to validate the model have provided strong support for the proposed associations and have contributed to the acceptance and adoption of the model in the field of information systems research. Model Issues The DeLone and McLean Model of Information Systems Success, despite its widespread adoption and validation, has faced some criticisms and challenges that can be categorized as model issues. These issues have prompted researchers to propose enhancements and alternative perspectives on the model. One of the main model issues raised by Seddon is the combination of process and causal interpretations within the model. Seddon argues that the inclusion of both variance and process explanations in the model can lead to confusion and potentially conflicting meanings. Seddon proposes a respecified variance model of IS success as an alternative. However, the authors of the DeLone and McLean Model believe that their combination of process and variance interpretations is valid and necessary for a comprehensive understanding of IS success. They argue that their formulations provide a different approach to the same goal. Another model issue is the difficulty of applying the model in specific research contexts. Researchers have commented on the challenges of defining and operationalizing IS success within their specific studies. Different types of systems, organizational variations, and stakeholder interests can modify the importance and relevance of success measures. Jiang and Klein found that users prefer different success measures depending on the type of system being evaluated. Seddon et al. proposed a two-dimensional matrix for classifying IS effectiveness measures based on the type of system studied and the stakeholder's interest. These considerations highlight the need for contextual variance specifications and the flexibility to choose appropriate success variables based on the objectives and context of the study. Furthermore, some researchers have used the model to support their chosen success variables without considering the multidimensional and interdependent nature of IS success. The authors of the DeLone and McLean Model caution against this approach and emphasize the importance of systematically combining individual measures from the IS success categories to create a comprehensive measurement instrument. They encourage researchers to study the interrelationships among the dimensions and control for them in their studies. Despite these model issues, the authors believe that the original model and its conclusions still provide a sound basis for IS success measurement, even in the e-commerce environment. They argue that the proposed changes in the updated model are largely changes in degree rather than in kind. The addition of "service quality" and the collapsing of 5 "individual impacts" and "organizational impact" into "net benefits" aim to preserve the parsimonious nature of the model. Hence, it is evident that the DeLone and McLean Model of Information Systems Success has faced model issues related to the combination of process and causal interpretations, the difficulty of applying the model in specific research contexts, and the misuse of the model to support chosen success variables without considering the multidimensional nature of IS success. However, the authors believe that the model still provides a solid foundation for IS success measurement and encourage further research and enhancements to address these issues. Model Extensions The DeLone and McLean Model of Information Systems Success has undergone several extensions and updates over the years. These extensions aim to enhance the model's applicability and provide a more comprehensive framework for measuring the success of information systems. One significant extension to the model is the inclusion of "service quality" as an important dimension of IS success. The authors recognize the importance of IS support, particularly in the e-commerce environment where customer service plays a crucial role. Service quality refers to the overall support delivered by the service provider, whether it is the IS department, a new organizational unit, or an outsourced Internet service provider. The quality of support is essential in ensuring customer satisfaction and retention, as poor user support can result in lost customers and sales. The updated D&M IS Success Model also incorporates the collapsing of "individual impacts" and "organizational impact" into a single variable called "net benefits." This change aims to preserve the parsimonious nature of the model while acknowledging the broader impacts of information systems beyond the individual and organizational levels. The model recognizes that IS impacts can extend to work groups, inter-organizational relationships, industry, consumers, and even society as a whole. The choice of where to measure these impacts depends on the specific system being evaluated and its intended purposes. By grouping all impact measures into a single category of "net benefits," the model provides a comprehensive view of the overall positive impacts and benefits derived from the system. The model extensions also highlight the relevance of the DeLone and McLean Model in the context of e-commerce systems. The authors demonstrate that the updated model is useful for developing comprehensive e-commerce success measures. They emphasize the importance of dimensions such as system quality, information quality, and service quality in evaluating the effectiveness of e-commerce systems. These extensions recognize the unique characteristics and challenges of e-commerce and provide a framework for assessing the success of these systems. 6 Measurement Enhancements Measurement enhancements refer to the improvements and developments made in the measurement of the dimensions of success in the DeLone and McLean Model of Information Systems Success. The authors of the paper acknowledge the need for a significant reduction in the number of dependent variable measures to facilitate comparability of research results. They highlight several studies that have developed and tested survey instruments to measure one or more of the six success constructs in the model. One example of measurement enhancement is the work of Torkzadeh and Doll, who developed a four-factor, 12-item instrument to measure the individual impact of information systems. They conducted a survey of 409 end users from 18 different organizations to test the measurement instrument. The results showed strong evidence of reliability, convergent validity, and discriminant validity of the instrument. The individual impact dimensions measured included task productivity, job performance, decision-making performance, and overall individual impact. Another study by Mirani and Lederer focused on measuring organizational benefits derived from IS projects. They developed a 33-item instrument that measured three categories of organizational benefits: strategic, informational, and transactional. The instrument was tested in a survey of 200 IS managers and systems analysts, and the results demonstrated strong evidence of discriminant validity. The study further identified subdimensions within each benefit category, such as competitive advantage, alignment, customer-relations benefits for strategic benefits, information access, information quality, and information flexibility for informational benefits, and communication efficiency, systems development efficiency, and business efficiency for transactional benefits. These measurement enhancements contribute to the understanding and measurement of IS success by providing validated instruments that capture the multidimensional nature of success. They offer researchers the means to measure and analyze the specific dimensions of success in a comprehensive and reliable manner. By using these instruments, researchers can obtain more accurate and comparable data, leading to a better understanding of the effectiveness and impact of information systems. Other Success Frameworks Other success frameworks have been proposed as alternatives or complements to the DeLone and McLean Model of Information Systems Success. These frameworks aim to provide additional perspectives and dimensions for measuring the effectiveness of information systems. One such framework is the IS effectiveness framework developed by Grover et al. This framework is based on the theory of organizational effectiveness and complements and extends the DeLone and McLean Model. It introduces six IS effectiveness categories: infusion measures, market measures, economic measures, usage measures, perceptual measures, and productivity measures. These categories consider different unit-of-analysis 7 and evaluation-type context dimensions. The framework recognizes the importance of system quality and information quality as antecedent effectiveness constructs, which differ from the DeLone and McLean Model that considers them as dimensions of success itself. The Grover et al. framework serves to validate the D&M IS Success Model from a theoretical perspective and suggests the inclusion of market impacts, which are incorporated in the updated model. Smithson and Hirschheim proposed a conceptual framework for IS evaluation. Their framework organizes various theoretical bases for IS evaluation into three "zones" of evaluation: efficiency, effectiveness, and understanding. It suggests that appropriate constructs or metrics can be drawn from different theoretical sources such as software metrics, organizational behavior, sociology, and cognitive psychology. While this framework overlaps with the dimensions of the DeLone and McLean Model, it does not specify actual success constructs and related measures. Instead, it serves as a source for identifying and developing IS evaluation measures. This framework offers an alternative theoretical perspective for developing IS evaluation schemes. These other success frameworks provide alternative perspectives and dimensions for measuring IS effectiveness and success. While they may overlap with the DeLone and McLean Model, they offer different theoretical bases and considerations for evaluating information systems. Researchers can choose to adopt these frameworks based on the specific objectives and context of their studies, expanding the understanding and measurement of IS success beyond the dimensions proposed in the DeLone and McLean Model. Analysis and Recommendations The analysis and recommendations section of the document focuses on the updates and enhancements made to the DeLone and McLean Model of Information Systems Success. The authors discuss the need to add a third dimension, "service quality," to the original dimensions of "systems quality" and "information quality." They argue that service quality is crucial, especially in the e-commerce environment where customer service plays a significant role. Additionally, the authors propose combining the "individual impacts" and "organizational impact" dimensions into a single variable called "net benefits." This consolidation aims to simplify the model and transfer the focus of analysis to the researcher, who can specify the appropriate level of analysis based on the objectives of the study. The authors also address the level of analysis in measuring IS success. They highlight the importance of specifying the perspective from which benefits are measured, whether it is from the individual, employer, industry, or national perspective. They emphasize that collapsing the individual and organizational impacts into net benefits does not eliminate the need to specify the focus of analysis. 8 Based on these considerations, the authors present the updated D&M IS Success Model as a foundation for future IS empirical research. They suggest that the model needs further development and validation before it can serve as a basis for selecting appropriate IS measures. They encourage researchers to continue testing and challenging the model and propose changes as necessary. Furthermore, the authors recommend the inclusion of "service quality" as an important dimension of IS success, given its significance in the e-commerce environment. They also suggest that the success model should be used to develop comprehensive e-commerce success measures, as demonstrated in Table 1 of the document. The Updated D&M IS Success Model The Updated D&M IS Success Model builds upon the original DeLone and McLean Model of Information Systems Success and incorporates changes to reflect the evolving role of information systems and the emergence of e-commerce. The model introduces two key updates: the addition of "service quality" as a dimension and the collapsing of "individual impacts" and "organizational impact" into a single variable called "net benefits." The model, presented in Figure 3, maintains the three major dimensions of quality: "information quality," "systems quality," and "service quality." These dimensions are considered separately as they influence subsequent "use" and "user satisfaction." The model recognizes that the interrelationships among these dimensions are crucial for understanding IS success. The dimension of "use" is further discussed, acknowledging the challenges in interpreting its multidimensional aspects. The authors suggest that in some contexts, "intention to use" may be a valuable alternative measure to capture attitudes, while recognizing the difficulty in measuring attitudes and their links with behavior. The collapsing of "individual impacts" and "organizational impact" into "net benefits" aims to simplify the model while preserving its parsimonious nature. This change acknowledges the broader impacts of information systems beyond the individual and organizational levels. The focus of analysis is emphasized, as the level of analysis must be specified, whether from the individual, employer, industry, or national perspective. The authors emphasize that the updated model is a degree-based change rather than a fundamental shift. They believe that the original conclusions of the model still provide a solid foundation for measuring IS success, even in the e-commerce environment. The model is seen as a framework for future research and encourages further development, validation, and contextual variance specifications. 9 E-Commerce Success E-commerce success refers to the effectiveness and positive outcomes of electronic commerce systems in achieving their intended goals. The document highlights the impact of information technology, particularly the internet, on business operations and the challenges faced by companies in evaluating the success of their e-commerce systems. The authors discuss the adaptation of the DeLone and McLean Model of Information Systems Success to address the measurement challenges in the e-commerce world. The updated D&M IS Success Model incorporates the dimensions of system quality, information quality, service quality, use, user satisfaction, and net benefits. These dimensions are relevant for evaluating the success of e-commerce systems. The model recognizes the importance of system quality in terms of adaptability, availability, reliability, response time, and usability. Information quality is crucial for personalized, complete, relevant, easy-to-understand, and secure web content. Service quality, which encompasses the overall support delivered by the service provider, is particularly important in the ecommerce environment where customer service plays a vital role. The model also emphasizes the significance of usage, user satisfaction, and net benefits in measuring e-commerce success. Usage measures encompass various activities such as visiting a website, navigation, information retrieval, and transaction execution. User satisfaction is an important indicator of customers' opinions and experiences with the ecommerce system. Net benefits capture the overall positive and negative impacts of ecommerce on customers, suppliers, employees, organizations, markets, industries, economies, and societies. These net benefits need to be determined based on the specific context and objectives of each e-commerce investment. The document provides a table of e-commerce success metrics, which align with the dimensions of the updated model. These metrics include adaptability, availability, reliability, response time, usability, completeness, ease of understanding, personalization, relevance, security, and more. The table demonstrates how the dimensions of the updated model can be used as a framework to organize various success metrics identified in the IS and ecommerce literature. Summary and Conclusions The "Summary and Conclusions" section of the document provides an overview of the key findings and recommendations based on the analysis and updates made to the DeLone and McLean Model of Information Systems Success. The authors begin by acknowledging the success of the model's adoption in research, with over 285 refereed papers referencing and utilizing the model. They highlight the importance of the model as a common framework for reporting and comparing research work on IS success. 10 The section emphasizes the need for measurement enhancements in the model. The authors call for a reduction in the number of dependent variable measures to facilitate comparability of research results. They mention the development and testing of survey instruments that measure the six success constructs of the model, such as system quality, information quality, service quality, use, user satisfaction, and net benefits. The authors discuss the addition of "service quality" as a dimension in the updated model, recognizing its significance in the e-commerce environment. They also propose collapsing "individual impacts" and "organizational impact" into a single variable called "net benefits" to simplify the model while preserving its parsimonious nature. The section concludes by stating that the original conclusions of the model still provide a solid basis for IS success measurement, even in the e-commerce environment. The authors believe that the proposed changes in the updated model are largely changes in degree rather than in kind. They encourage further development, validation, and contextual variance specifications of the model. References 1. DeLone, W. H., & McLean, E. R. (1992). Information systems success: the quest for the dependent variable. Information Systems Research. 3 (1): 60–95. doi:10.1287/isre.3.1.60 2. DeLone, W. H., & McLean, E. R. (2002). Information Systems Success Revisited. Proceedings of the 35th Hawaii International Conference on System Sciences (HICSS), Big Island, Hawaii, 238-249. 3. DeLone, W. H., & McLean, E. R. (2003). The Delone and McLean Model of Information Systems Success: A ten-year update. Journal of Management Information Systems, 19(4), 9–30. https://doi.org/10.1080/07421222.2003.11045748 4. Hitchcock, C. (2018, August 7). Causal models. Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/archives/fall2018/entries/causal-models/ 11