INTERACTION DESIGN OF A CROWDSOURCING-BASED GROCERY SHOPPING MOBILE APPLICATION USING USER-CENTERED DESIGN

• Main Author: Angeline, Alexandra
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/77055
• Institution: Institut Teknologi Bandung

Grocery shopping for daily necessities is one of the primary activities within households, with 90% of households shopping at least once a week. Despite the availability of online shopping platforms, 8 out of 10 people still prefer to shop in-person. The in-person shopping process has its own challenges, such as uncertainty regarding stock and store conditions (crowding, queueing time). Thus, a solution is needed to streamline the shopping process in terms of cost and effort. Crowdsourcing—a method of gathering online information that requires the participation of a group of individuals for a specific purpose—is suitable for providing the various information needed to shop more efficiently. In this final project, a high fidelity prototype will be designed for a crowdsourcing-based shopping application using a user-centered design (UCD) approach, consisting of 4 stages: specifying the context of use, specifying user needs, designing solutions, and evaluating designs. Based on the data analysis gathered from a questionnaire completed by 394 respondents, various problems, needs, user goals, and functionalities that address these aspects were successfully defined. The provided functionalities include Onboarding, Input Shopping List, Store Matching and Recommendation, Store Filter, Check In, Store Information (General, Live Updates, Stock, Questions), Notifications, and Contribution History. Those functionalities are then designed and tested three times: a low fidelity prototype and two iterations of a high fidelity prototype. Testing was conducted by measuring overall usability and other defined goals: usability goals of effectiveness and efficiency and one user experience goal of helpfulness. The final result of the design testing achieved a SUS score of 92.5, a completion rate of 100%, a SEQ score of 6.93, and an NPS of 100. The design solution also succeeded in reducing the time to gather information by 57.27%. All test participants agreed that the application’s interaction design was highly effective in assisting them to achieve the user goals with minimal confusion and difficulty. Consequently, it can be concluded that the proposed crowdsourcing-based grocery shopping application interaction design solution has met user needs by fulfilling all testing aspects.