Figure 15
The diagram presents five interconnected research themes for smart port performance indicators. At the top, it features 'Integrated Modeling of Performance Indicators with Digital Technologies.' This theme connects to 'Redefining Sustainability-Focused Smart Port Performance Indicators' on the right and 'Real-Time and Dynamic Performance Measurement Approaches' on the left. 'Redefining Sustainability-Focused Smart Port Performance Indicators' connects to 'Comparative and Multicontextual Empirical Studies' at the bottom right, which in turn connects to 'Integration of Performance Indicators with Strategic Management and Decision-Making Processes' at the bottom left. This final theme connects back to 'Real-Time and Dynamic Performance Measurement Approaches,' completing the cycle.Proposed research themes for future studies on smart port performance indicators