Figure 6
The matrix is triangular, representing the upper half of a full matrix, with both the x and y axes labeled S 1 through S 18. A legend on the right provides the full names for each S-code: S 1: Automation and Digitalization Gap. S 2: Data Management and Analytics Deficiencies. S 3: Traceability issues and supply chain management. S 4: Sustainability Process Inefficiencies. S 5: Resource Management Concerns. S 6: High cost of Sustainable Practices. S 7: Challenge related to sustainability reporting. S 8: Logistic challenges and cold chain. S 9: Need for short supply chains. S 10: Instability of raw material. S 11: The divergence of sustainability objectives within the supply chain. S 12: Greenwashing and Sustainability Perception Issues. S 13: Product quality and maintenance characteristics. S 14: Training and human resources management. S 15: Functional limits of sustainable packaging. S 16: Plant conversion in the transition to sustainable packaging. S 17: Complex and rapidly changing regulatory framework. S 18: Lack of institutional support in sustainability and quality practices. The cells in the matrix are colored based on their Jaccard index value, with a color scale ranging from dark blue (low value) to dark red (high value). The row-wise values in the matrix are as follows Row 1: S 1: S 2: 0.5. S 3: 0.3. S 4: 0.42. S 5: 0.18. S 6: 0.32. S 7: 0.29. S 8: 0.11. S 9: 0.11. S 10: 0.16. S 11: 0.15. S 12: 0.22. S 13: 0.11. S 14: 0.14. S 15: 0.21. S 16: 0.12. S 17: 0. S 18: 0.21. Row 2: S 2: S 3: 0.11. S 4: 0.29. S 5: 0.15. S 6: 0.33. S 7: 0.21. S 8: 0.067. S 9: 0.15. S 10: 0.13. S 11: 0.2. S 12: 0.062. S 13: 0.071. S 14: 0.12. S 15: 0.12. S 16: 0.083. S 17: 0.083. S 18: 0.38. Row 3: S 3: S 4: 0.17. S 5: 0.17. S 6: 0.21. S 7: 0.23. S 8: 0.15. S 9: 0.073. S 10: 0.23. S 11: 0.13. S 12: 0.23. S 13: 0.17. S 14: 0.29. S 15: 0.31. S 16: 0.091. S 17: 0.091. S 18: 0.062. Row 4: S 4: S 5: 0. S 6: 0.41. S 7: 0.21. S 8: 0.23. S 9: 0.071. S 10: 0.21. S 11: 0.059. S 12: 0.21. S 13: 0.25. S 14: 0.056. S 15: 0.12. S 16: 0. S 17: 0.083. S 18: 0.2. Row 5: S 5: S 6: 0.13. S 7: 0. S 8: 0. S 9: 0. S 10: 0.11. S 11: 0.1. S 12: 0.11. S 13: 0. S 14: 0.2. S 15: 0.1. S 16: 0.2. S 17: 0. S 18: 0.1. Row 6: S 6: S 7: 0.12. S 8: 0.2. S 9: 0.13. S 10: 0.19. S 11: 0.11. S 12: 0.12. S 13: 0.21. S 14: 0.17. S 15: 0.11. S 16: 0. S 17: 0.071. S 18: 0.25. Row 7: S 7: S 8: 0. S 9: 0.25. S 10: 0.33. S 11: 0.083. S 12: 0.2. S 13: 0.11. S 14: 0.17. S 15: 0.3. S 16: 0.14. S 17: 0.14. S 18: 0.18. Row 8: S 8: S 9: 0. S 10: 0.22. S 11: 0.2. S 12: 0.22. S 13: 0.12. S 14: 0.083. S 15: 0.091. S 16: 0. S 17: 0. S 18: 0. Row 9: S 9: S 10: 0.25. S 11: 0. S 12: 0. S 13: 0. S 14: 0.2. S 15: 0.22. S 16: 0. S 17: 0. S 18: 0.3. Row 10: S 10: S 11: 0.083. S 12: 0.2. S 13: 0.25. S 14: 0.27. S 15: 0.44. S 16: 0. S 17: 0. S 18: 0. Row 11: S 11: S 12: 0.18. S 13: 0.1. S 14: 0.5. S 15: 0.17. S 16: 0.12. S 17: 0.29. S 18: 0.17. Row 12: S 12: S 13: 0.11. S 14: 0.17. S 15: 0.18. S 16: 0.33. S 17: 0. S 18: 0.18. Row 13: S 13: S 14: 0.091. S 15: 0.1. S 16: 0. S 17: 0.2. S 18: 0.1. Row 14: S 14: S 15: 0.25. S 16: 0.11. S 17: 0.25. S 18: 0.071. Row 15: S 15: S 16: 0.12. S 17: 0. S 18: 0.17. Row 16: S 16: S 17: 0. S 18: 0.12. Row 17: S 17: S 18: 0.12. Row 18: S 18: There are no values to report for this row.Matrix of Jaccard index values to test correlation between the second-order themes (S1–S18). Only the upper triangular part is represented for symmetry reasons. Source: Authors’ own work