User interface design improvement for the institute of education on flight attendant website

An education of flight attendant website serves as the primary source of information for prospective students. However, an initial evaluation identified several user interface issues that negatively affect usability. This study aims to identify user needs, evaluate the current usability level, and develop an improved user interface prototype that better aligns with user requirements. A quantitative usability testing approach was employed, focusing on three key attributes: effectiveness, efficiency, and satisfaction. The study was conducted in three stages: an initial quantitative evaluation of the existing website, a qualitative phase to support the redesign process, and a final quantitative evaluation of the proposed prototype. The results show that the existing website achieved an effectiveness score of 74.29%, an efficiency score of 74.19%, and a System Usability Scale (SUS) score of 59. After implementing the proposed improvements, effectiveness increased to 94.29%, efficiency to 95.57%, and the SUS score improved to 86. These findings indicate that the proposed user interface significantly enhances the usability of the website and can serve as a reliable foundation for future interface development.