Lunar I-Hab’s mock-up currently has a low-fidelity level, meaning that the inside of the cabin is outfitted with mock-ups of equipment which match their shape but do not function like them. As the test campaign progresses, the mock-up will be outfitted with higher fidelity configurations, for example, more detailed representations of objects and even functional crew interfaces. In particular, high-fidelity interfaces will be built to test the connection between the parts of Lunar I-Hab provided by ESA and those provided by JAXA, the Japan Aerospace Exploration Agency. This testing campaign will refine the design of the module’s interior ahead of Lunar I-Hab’s critical design review, where the module’s design will be finalised with international partners contributing to the Gateway.