Design and Implementation of a Raspberry Pi–Based Smart Mirror with Multimodal AI and IoT for Sustainable Outfit Decision Support

Abstract

The implementation of User-Centered Design (UCD) in mobile application development has a significant impact on user satisfaction. Based on a review of 30 scholarly articles, UCD has been shown to enhance satisfaction through a deep understanding of user needs, iterative design based on user feedback, and improvements in both functionality and intuitive user interface design. The evaluation methods commonly used to measure usability within the UCD approach include usability testing, heuristic evaluation, surveys and questionnaires, A/B testing, application usage data analysis, and cognitive walkthroughs. The findings indicate that applications developed using UCD principles tend to achieve higher adoption rates, more positive user reviews, and better overall usability. Therefore, the application of UCD is strongly recommended as an effective strategy for achieving optimal user satisfaction in mobile application development.