Development of a Mixed-Reality Vocational Training Simulator: Integrating UI/UX-Centered Design for Enhanced Skill Acquisition and Immersive Learning

This study presented the development and evaluation of a UI/UX-centered Mixed-Reality (MR) vocational training simulator designed to enhance skill acquisition, engagement, and usability among learners in carpentry, automotive, and cookery domains. By integrating gesture-based and controller-based interaction methods, the system offered an immersive learning environment that mirrored real-world vocational tasks. Usability testing with 20 participants, guided by a domain specific UX evaluation framework, revealed high levels of functionality, accuracy, and acceptability, with an overall System Usability Scale (SUS) score of 76.42, indicating good to excellent usability. Findings suggested that intuitive interface design and natural interactions significantly improved learner performance, motivation, and retention. This research contributed valuable insights into the effective use of MR technologies for vocational education and the importance of user-centered design in immersive systems.