EVALUASI DAN PERANCANGAN USULAN PERBAIKAN USABILITY PADA MOBILE APPLICATION MEDIA SOSIAL SOCLES

• Main Author: Pamela Lianny, Angelina
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70806
• Institution: Institut Teknologi Bandung

Socles is a social media application that enables users to discover new circles with similar interests. As of now, Socles application has not been launched to the market, so it is not yet known whether the user interface is proper or not. Based on a preliminary study involving five ITB students, 88% of issues that are found are related to the ease of use of the application or usability. Therefore, this study aims to evaluate and improve the usability of Socles application. Usability summative evaluation is conducted by involving 20 ITB students as participants. Each participant was asked to complete eight tasks that are designed based on the results of the preliminary study. The evaluation was carried out to measure effectiveness, efficiency, and user satisfaction, and was equipped with the measurement of mental workload using EEG and collection of participants’ feedback from retrospective think aloud (RTA). Effectiveness is measured by task success rate, efficiency is measured by lostness score and error rate, and user satisfaction is measured by the score of Questionnaire for User Interface Satisfaction (QUIS). The results show that Socles application is effective because all tasks have a task success rate exceeding 70%. However, the application is not fully efficient because there are four tasks with a lostness score of more than 0.4. The mental workload received by participants while performing three tasks is relatively high with a beta/ alpha ratio exceeding 1. Meanwhile, the QUIS results with a score of 5.55 indicate that participants are quite satisfied with the application. Error and RTA data are used for a more thorough analysis of each task so that improvements can be designed. Overall, there are 44 proposed improvements to improve the usability of Socles application.