Usability Evaluation of Spacecraft Digital Twin System Based on Eye Movement

Abstract

Purpose To do a usability test of the spacecraft digital twin system interface to discuss the user's focus on content, information search efficiency and satisfaction when using the system, and analyse existing problems for subsequent iterative optimization. Method Obtain user’s eye movement data to conduct an objective usability analysis, and combined with SUS usability scale, users’ subjective evaluation was obtained. Result When users used the spacecraft digital twin system, simulation monitoring screen, the health status of the organization and the torque change were paid more attention; the system layout is reasonable, but the user's search efficiency for detailed data is not high, which is more suitable for professionals. The user experience of this system remains to be improved. Conclusion Based on the results of eye movement experiments, reasonable suggestions can be made for the subsequent iterations of the spacecraft digital twin system interface.