Legacy Electronic Data Interchange (EDI) infrastructures remain widely used in manufacturing and logistics supply chains but increasingly struggle to support real-time data exchange, partner scalability, and modern cloud-native architectures. This paper introduces the Staged Interoperability Migration Model (SIMM), a practitioner framework designed to guide organizations in transitioning from legacy VAN-based EDI systems toward cloud-native, event-driven integration architectures. The framework outlines five progressive stages of modernization: legacy stabilization, hybrid interoperability, cloud orchestration, and autonomous partner networks. Drawing on implementation observations from industry deployments, the model highlights architectural patterns including API-based partner integration, event streaming pipelines, and centralized data governance layers. The paper further discusses implications for supply chain resilience, regulatory traceability requirements, and digital infrastructure modernization within manufacturing ecosystems. By presenting a structured migration model and associated architectural principles, this work aims to contribute practical guidance for organizations seeking to modernize enterprise integration capabilities while maintaining operational continuity across complex supply networks.
Sahil Chandawale (Tue,) studied this question.