<![CDATA[The development of digital technology has encouraged villages to adopt the smart village concept to improve the quality of public services and community participation. However, most existing village service applications still face challenges in terms of user interfaces that are less intuitive, thereby reducing their effectiveness and usability. This study aims to optimize user experience through the application of the User-Centered Design (UCD) approach and the evaluation of interface quality using the Quality in Use Integrated Measurement (QUIM) method in the design of the E-RT system user interface. The UCD approach was employed to identify user needs through several stages, including identification of the context of use, requirements analysis, solution design, and evaluation based on user feedback. Subsequently, the QUIM method was applied to measure the system's usability quality based on indicators of efficiency, effectiveness, satisfaction, and ease of use. The results show that the implementation of UCD was able to address problems in RT administrative management that had previously been conducted manually. By involving users from the stages of requirements identification, interface design, evaluation, and design improvement, the resulting interface was better aligned with the actual needs of the two main user groups, namely residents and RT administrators. Based on the QUIM evaluation using ten indicators, the assessment by residents showed consistent results, with the scores for Efficiency, Effectiveness, Productivity, Satisfaction, Learnability, Safety, Trustfulness, Accessibility, and Universality ranging from 3.41 to 4.20, which falls within the high category. Meanwhile, the evaluation conducted among RT administrators using the same indicators resulted in scores ranging from 4.21 to 5.00, which falls within the very high category. These findings indicate that the combination of UCD and QUIM can effectively support the development of a user interface that is more usable, user-oriented, and aligned with the needs of smart village services.]]>
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