Digital Twin for ODA advances the industry’s journey toward fully automated, standards-aligned operations by creating a digital twin that accelerates and simplifies ODA (Open Digital Architecture) adoption. Building on the achievements of the previous phase, this project demonstrates how operators can model, validate, and automate their ODA conformance journey through an intelligent, continuously updated twin of their operational environment. Today, many service providers struggle with interpreting ODA specifications, validating compatibility, and ensuring ongoing alignment as their architecture evolves. The project addresses this gap by providing an automated framework that maps an organisation’s current systems, capabilities, and processes to the ODA reference model. The digital twin highlights gaps, recommends remediation steps, and enables scenario testing—reducing the time, expertise, and manual effort required to modernise legacy architectures. This phase pushes the innovation further by incorporating automation, analytics, and guided adoption pathways. The twin becomes not just a static reference but an active tool that supports architectural decision-making, capability modelling, and continuous compliance monitoring. By enabling providers to simulate, plan, and implement ODA-aligned transformations with greater confidence, the project delivers tangible value for operators seeking agility, interoperability, and future-ready operational models. Ultimately, Digital Twin for ODA serves as a catalyst for accelerated industry-wide ODA adoption, offering repeatable assets, practical guidance, and a scalable digital framework that supports operators at every step of their transformation journey.