Design and verification of universal virtual shopping store application

The aim of this study was to design the user experience for a head-mounted display (HMD)-based universal virtual shopping store by conducting a literature analysis and employing video ethnography techniques. Subsequently, a prototype was developed to validate the outcomes. Despite the growing trend of contactless shopping, with various brands launching virtual store platforms, these often lack the elements and experiences that users find satisfying. To address this gap, we analysed users' offline shopping experiences using video ethnography. The insights gained informed the development of a prototype that adopts a universal design approach, incorporating key features and interface designs tailored for a virtual store environment. The prototype includes innovative features include tutorials, avatar-based virtual fitting, user location/orientation control, and voice guidance. It also incorporates design features such as colour customisation, high contrast, central interface placement, and visual cues for differentiating product types. To validate the prototype's usability, a study was conducted with 30 university students in their 20s (mean age 23.3 years, SD = 1.8), revealing high levels of satisfaction with its functionality and interface design. Further, in-depth interviews revealed that the appropriate design of features and interfaces, aligned with shopping goals and intentions, significantly enhanced interest in and engagement with virtual shopping. The prototype's key features, representative of the main outcomes of this study, provide valuable insights for the future development of related services.