Deliverable D2.3: Metaverse use-cases definition with virtual assistant for user-centric configuration

Use-cases are essential for guiding the design of the next generation of networks and align the concrete needs of end-users. This is especially true for SAFE-6G, which aims at designing a user-centric approach for 6G network to increase the trust users have in them. Beyond performance levels and security features, the goal of SAFE-6G is thus to implement such trustworthy 6G ecosystem and validate that this approach can bring a real added value for end-users. To do so, two metaverse usecases had been selected to highlight the benefits of SAFE-6G: 1) an Industry 4.0 use-case based on Extended Reality (XR) applications for a factory Digital Twin (DT) and 2) an Education/Formation usecase based on XR+AI. The present document details these two use-cases. It showcases the result of the last refinement iteration of the two use-cases, the involved stakeholders and the benefits offered by SAFE-6G for them. Then, the document introduces the requirements, KPIs and KVIs emerging from the use-case scenarios, i.e. the expectations coming from the perspective of end-users. Finally, the technical architecture designed for each use-case is detailed to serve as reference for the incoming implementation tasks of the project. This document is the third deliverable of WP2. It completes two previous deliverables: D2.1 - Definition of Technical Requirements for User-centric 6G Trustworthiness and D2.2 - Overall SAFE-6G Framework and Reference Architecture Design.