The balance between usability and user experience in a mobile app user interface design is important. In addition to being easy to use, the application also needs to have an attractive design for use by users. In this study aims to determine the relationship between usability and user experience on the design of user interface design smart grid mobile applications. Usability testing uses System Usability Scale (SUS) and user experience testing using User Experience Questionnaire (UEQ). The result of testing the relationship between usability with user experience got the value of 0.603. The value of 0.603 included into relationship level "strong".
Usability, User Experience, User Interface Design, Smart Grid, Mobile Applications
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