Software Quality Testing in Mobile Application (ArabEasy) Based on the PACMAD Model

Abstract

ArabEasy is an application to learn and understand basic concepts of Arabic. This app has a problem with the user interface (UI); based on the comment from users, UI this app is confusing to use. This research focuses on measuring, testing, and improving UI usability using the PACMAD model. First, data collection was obtained from the Performance Measurement, SUS Questionnaire, NASA-TLX Questionnaire, and RTA Questionnaire. The result from this process is measured using usability metrics, statistical testing, and calculation from the questionnaire, respectively. The following process, developing a new UI to improve the app, became easy for users from a prototype based on The four Golden Rules of User Interface Design. This process showed increased effectiveness 37.22%, efficiency 46.08%, satisfaction 24.25. Furthermore, the aspect of the error decreased 13.4%, and the cognitive load 18.54, so that an improvement using the PACMAD model is effective in this case.