Chowbus: Asian Food Delivery App
Heuristic Evaluation and Redesign
In collaboration with two UX designers, this project is a redesign of the Chowbus app and focuses on improving the usability of the main task flow (ordering food for delivery). The goal was not to redesign the app based on personal preference, but rather on usability issues identified using Neilsen Norman Group's 10 Usability Heuristics.
Duration: 10 Days
Team: 3 UX Designers (Melissa Thanakone, Dunja Dzakovic, Kayla Frier)
My Role: UX/UI Designer
Tools: Figma, FigJam
Task Flow Overview
My team and I first identified the friction points in the main task flow and mapped out the experience of ordering food for delivery on the app. We were able to identify the key screens in the task flow in which we could analyze further with a heuristic evaluation.
A Look At Neilsen's Heuristics
The app was evaluated using The Neilsen Norman Group's Usability Heuristics which comprises of 10 principles. These heuristics are commonly used to measure the usability of interfaces and reveal insights that can help design teams enhance product usability.
Each heuristic that we identified within our selected task flow was evaluated against a severity scale ranging from 0 to 4 (with 4 indicating there is a usability catastrophe). By rating each usability issue, we were able to address the most pressing problem areas.
My team and I identified several opportunities available for redesign and plotted them on a prioritization matrix to pinpoint the value to users and effort to fix. With the time constraints given, we chose to prioritize the highlighted issues below to redesign and update.
To ensure our design solutions were consistent with Chowbus' brand guidelines, we adhered to their existing colour palette and typography.
The issues that we chose to focus on span 4 of the 10 usability heuristics. My team and I determined that they overall ranked between cosmetic and minor usability problems.
Melissa Thanakone —