About RATIO-SIM
This section provides further details about RATIO-SIM, its terms of reference,
working groups and related ESA material such as Technology Harmonisation Dossiers.
SMP Working Group
The Simulation Modelling Platform (SMP) Working Group is responsible for simulation
modelling and model portability aspects including standardisation.
This SMP Working Group took onboard the existing SMP Level 1 ECSS Working Group and
continue the work on SMP with the same community; however now in the wider context of RATIO-SIM.
Simulator Architecture Working Group
The Simulator Architecture Working Group is responsible for the URSA
(Unifying Reference Simulator Architecture) reference architecture including information
flow and engineering processes. URSA is an attempt in unifying
well used specification and architecture from both CNES and ESOC ground segments.
Simulator Infrastructure Working Group
The Simulator Infrastructure Working Group is responsible for developing building blocks for the
existing simulator infrastructures in European agencies and industry. These building blocks will
enable interoperability between various Simulator Infrastructures and Mission Control Systems.
As an example, a first activity will focus on the High Level Architecture (HLA) specification and
how its European implementation can be a first key to this interoperability.
Onboard Computer Simulators and Emulators Working Group
The Onboard Computer Simulators and Emulators Working Group is a response to the upcoming challenges
in the emulation and simulation of onboard computers. The WG will focus on the definition of a common
strategy for Europe to address the needs of future missions, including the definition of a handbook to advise
on the best choice of technology per simulation use-cases and needs.
Digital Twin and Advanced Simulation Concepts Working Group
The WG aims at coordinating the vision, objectives, components, use cases and scope/landscape of
the Digital Twin Spacecraft. In more details the following objectives are envisioned:
- Define the concept of Digital Twin Spacecraft for the European industry, organizations and
agencies in the scope of Europe Programmers
- Define the European strategy for the development and deployment of the technologies
- Ensure that the capabilities provided by the technologies are available to the industry and
supported by the agencies
- Coordinate and demonstrate enabled capabilities of deployed technologies. Provide a forum to
demonstrate prototypes, generic components and enabled capabilities
- Define and Harmonize Digital Twins & Advanced Simulation Concepts (e.g., AI, surrogate models, ...)
generic components, architectures and applicability of standards
- Define sets of guidance for manufacturing and systems and software development
