E-COMMERCE INTERACTION DESIGN WITH VOICE USER INTERFACE USING USER-CENTERED DESIGN APPROACH

• Main Author: Faramita, Rizky
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/40106
• Institution: Institut Teknologi Bandung

Total transaction in e-commerce in Indonesia is predicted to increase eight times from seven billion USD in 2017 to 56 billion USD in 2022. This aggressive digital economy boosts e-commerce to increase its service, starting from feature revamping to releasing new interaction. In this research, VUI in e-commerce is developed. The goal of this research is to identify the preferred user experience and usability goal, design VUI, and test VUI. The scope of work is limited to ecommerce with marketplace type of business with English as the main language and designed in mobile platform. User-centered design approach is used in research with ISO 9241-210:2010 as the methodology and results in two personas. Solution overview consists of low-fidelity prototype with effectivess as usability goal and helpful as user experience goal. The main tool used to develop low-fidelity prototype is Balsamiq, tested in usability testing and accommodated with paper prototyping. In low-fidelity prototype testing, score earned is OK for two personas. The main tool used to develop high-fidelity prototype is Adobe XD, tested in usability testing and accommodated with testing tool from Adobe XD. High-fidelity prototype testing shows that effectivess earned with score 73.0% and helpful earned with score 80.0%. The final design includes seven main features, which are searching products, tracking products, giving review, listening to reviews, chatting with seller, adding product to cart, and proceeding product to payment. Final design also includes three supporting features, which are onboarding session, help page, and error message.