University of Tehran Press Interdisciplinary Journal of Management Studies 2981-0795 19 3 2026 05 31 Quantifying the Influencing Issues of Digital Integration with Supply Chain Using Graph Theory (GT) 567 582 104288 10.22059/ijms.2025.389127.677380 EN Nitin Kumar Chauhan Department of Mechanical Engineering, JC Bose University of Science & Technology, Faridabad, Haryana-121006, India Vikas Kumar Department of Mechanical Engineering, JC Bose University of Science & Technology, Faridabad, Haryana-121006, India Sandhya Dixit Department of Mechanical Engineering, JC Bose University of Science & Technology, Faridabad, Haryana-121006, India Journal Article 2025 02 11 This study aims to develop a model that quantifies the key issues influencing digital integration within the supply chain (SC) as a single numerical value, termed the integrity index. This index value helps organisations in identifying and addressing various SC issues related to digital integration. The model calculates the integrity index by analysing the interactions among different issues involved in digital integration. The graph theoretic approach (GTA) technique is applied to examine the integrity index value by analysing the interactions among different issues involved in digital integration. In GTA, the various issues influencing the digital integration are identified, and a model with the help of a digraph is prepared based on their interdependencies. From this digraph, an adjacency matrix is created, and the permanent function of this matrix is computed to derive the integrity index. The integrity index is evaluated by using GTA in the context of Indian small and medium enterprises (SMEs). By using the GTA framework, the integrity index is also calculated in the best- and the worst-case scenarios. Findings from the study reveal that financial issues are the most influencing ones impacting digital integration, followed by organisational and technological issues, providing key focus areas for improvement. https://ijms.ut.ac.ir/article_104288_80c0313b152b7198ffae518f84dd6af9.pdf