Perceived Usability Evaluation of MOLS (Mulawarman Online Learning System) During COVID-19 Pandemic Using System Usability Scale (SUS), Performance Measurement, and Thinking Aloud Methods.

Due to COVID-19 pandemic, teaching learning process has changed from traditional classroom method to online learning. To cope with this situation, Engineering Faculty of Mulawarman University introduced MOLS (Mulawarman Learning Online System) to allow students interact with learning tools via web browsers. This paper aims to evaluate the student's perceived usability of MOLS based on effectiveness, efficiency, and user satisfaction. Furthermore, this paper attempts to improve MOLS to meet the students' need. For this purpose, three methods are applied, i.e., using SUS (System Usability Scale) to measure student's satisfaction, Performance Measurement to evaluate effectiveness and efficiency and Thinking Aloud to gather data about what users' opinion about MOLS design. This opinion usually turn into redesign recommendations. A number of 96 students of Engineering Faculty participated in SUS Questionnaire and 10 students were involved in Performance Measurement and Thinking Aloud process. Result showed that SUS score was 61.64 which is below marginal score 68. The effectiveness was 99% and efficiency was 0.0035 task/second. Thus, MOLS application is effective and efficient, yet its needs further improvement to meet the students' needs, such as adding more features, design interesting and interactive user interface and improve the response time. [ABSTRACT FROM AUTHOR]