Several results beyond the state of the art have been achieved within the first reporting period. The Operational Service and Environment Description (OSED) document (Deliverable 2.2) for the SESAR solution 0506 (D/F-RTS), created within the scope of the VISORS project, outlines the operational service and environment in which the VISORS solution is intended to be implemented in distributed/federated real-time simulations within the ATM/UTM context. This document details the operational environment and, in particular, the new operating method in a distributed/federated simulation architecture highlighting required, beyond state of the art, key assumption. Furthermore, the developed Functional Requirements Document (FRD) (Deliverable 2.3) defines the functional architecture, and the functional requirements envisaged to be implemented in order to perform distributed/ federated real-time simulations in the ATM/ UTM context. Furthermore, high-level assumptions are listed that are applicable to the developed VISORS SESAR solution, which are going beyond state of the art. In addition, a peer-reviewed paper has been presented at the IEEE Integrated Communication, Navigation and Surveillance (ICNS) 2025 conference in Brussels at EUROCONTROL headquarters on 07th – 10th April 2025 and has been published. This contribution included both a scientific publication and an accompanying presentation, disseminating key VISORS insights and viewpoints on D/F-RTS to the international aviation and research community. The work focused on the presentation of the foreseen high-level simulation architecture, the comprehensive definition of experimental demonstration exercise scenarios, and the integration of human performance and cyber-security considerations with regards to remote RTS infrastructure. Finally, the VISORS project was presented at the Airspace World 2025 in Lisbon on 26th – 28th May 2025 during the SESAR Walking Tour focusing on the project’s objectives and the planned experimental demonstration use cases in order to receive valuable feedback regarding their realism, significance, and limitations from the present experts.