<![CDATA[Oceanography ITB Hub is a scientific dashboard that presents real-time meteorological and oceanographic observation data from an Automatic Weather Station (AWS) installed at the Marine Technology and Coastal Research Center (MTCRC) pier, Cirebon. As a dashboard with high information density and technical terminology, usability becomes a critical aspect, particularly because its users come from diverse academic backgrounds. This study aims to measure the usability level of the website using the System Usability Scale (SUS) and to analyze differences in usability perception based on user characteristics. The study involved 68 respondents divided into five groups: STMKG Lecturers, Science and Technology Lecturers, STMKG Students, Science and Technology Students, and Social Science Students. Data were analyzed using descriptive statistics, the Kruskal–Wallis test, and the Dunn–Bonferroni post hoc test. The results show a mean SUS score of 67.13, classified as Grade D, Marginal Acceptability, and an “OK” Adjective Rating, with all items proven valid and the instrument reliable (Cronbach's Alpha = 0.851). The Kruskal–Wallis test revealed a statistically significant difference in usability across user groups (H = 17.126; p = 0.0018), with STMKG Students rating usability significantly higher than Science and Technology Students (p = 0.0059) and Social Science Students (p = 0.0040). Item-level analysis identified learnability as the main weakness, particularly users' need to learn extensively or seek help before being able to use the website effectively. These findings emphasize the importance of considering user characteristics in the usability evaluation of scientific dashboards and provide a basis for interface improvement recommendations grounded in Nielsen's Usability Heuristics]]>
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