MOBILE APPLICATION INTERACTION DESIGN FOR ORDERING DIET PROGRAMS AT YELLOW FIT KITCHEN USING USER CENTERED DESIGN APPROACH

• Main Author: Akyas David Al Aleey, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/85021
• Institution: Institut Teknologi Bandung

In an increasingly digital world, efficiency and ease of transactions have become crucial for delivering a satisfying user experience. Currently, Yellow Fit Kitchen, one of the largest brands providing diet program menus, uses WhatsApp for ordering and consultations, while their website provides information. However, users often face difficulties in completing the ordering process due to the need to switch between WhatsApp and the website. Moreover, inconsistencies in information between the two platforms and unclear ordering processes reduce the overall effectiveness and efficiency of the ordering system. This issue highlights the urgent need for better interaction design. With the rapid growth of mobile applications, this study aims to offer a solution by designing a mobile application for ordering diet programs at Yellow Fit Kitchen that integrates the functionalities of both WhatsApp and the website. The method used in this research is user-centered design, which prioritizes user needs to ensure that the application provides functionalities and features that meet their expectations. The application development process began with analyzing user needs and problems through literature reviews and questionnaires. This was followed by the design of low-fidelity and high-fidelity frontend interfaces, culminating in evaluation and testing. The application prototype was developed for customers, potential customers, and Yellow Fit Kitchen stakeholders, excluding the administrator side. The usability goals targeted include effective to use, efficient to use, having good utility, and easy to learn. Meanwhile, the user experience goals include being helpful and satisfying. Evaluation was conducted using metrics to measure these six criteria, such as task completion rate, number of errors, time on task, satisfaction rate, Single Ease Question (SEQ) method, Intrinsic Motivation Inventory (IMI), and System Usability Scale (SUS). These measurements have shown improvements in usability and user experience values through two iterations of testing.