
Daikon — UX and UI case study
Meet your supplier, support the environment.
This project was carried out as part of the Interaction Design Specialization course at the University of California San Diego.
Overview
Objective: to improve users’ experience of food shopping and to respond to their needs based on interviews and observations.
My Role: I worked independently on the project and was responsible for every part of it (research, prototypes, tests, UI design).
Final product showcase: UI and high-fidelity prototype.
Needfinding
Observations & Interviews
I would like to explore the shopping process in terms of habits and problems people face. I wanted to pay attention to what people are guided by when making choices (e.g. environmental protection or “healthy lifestyle”) and to think about how people can change their harmful or unsatisfactory habits to make shopping more pleasant for them and for the environment.
For this purpose, I conducted one observation of the purchasing process and three interviews on the subject of purchasing.
The participants were asked to do the shopping (in the form in which they usually do it) and after that I also asked them some questions about their shopping habits.
Users’ Thoughts

Ideation
Main Users’ Problems and Possible Solutions

Point of View
Based on the statements and observations of the research participants, I formed the following point of view:
Possibility to buy fresh, healthy products from trusted, local, eco-friendly suppliers even in the big city.
When shopping in large, crowded supermarkets, you are often unable to see where the food comes from, what the quality is or if farmer use some harmful chemicals in food production. This problem is solved by buying fresh goods directly from local farmers, but in a big city there is not always a chance. Such “buyer — producer” relationships often allow you to build trust and loyalty, which can translate into more attractive prices for buyers and a secure market for producers, and also you have a possibility to reduce plastic thanks to green packaging.
Moreover, moving such a relationship to the virtual world allows you to save time and do satisfactory shopping without leaving home.
Pain Points — try to solve users’ problems

Persona

User Journey Map

Storyboards

Early Paper Prototypes
Path #1

Path #2

Path #3

Heuristic Evaluation
Based on Jakob Nielsen’s 10 general principles for interaction design (Nielsen’s Heuristics), I have evaluated a paper prototype. I did it on the basis of the observation of one of the users, as well as on the basis of the feedback I received from one of my peers.
Link to table with the results of the evaluation.
User Flow Scheme

Low-fidelity Prototype

Testing
The application was tested by 5 users (the tests were recorded for later analysis). On their basis I created a list of changes that I made to the interface.
Table with the list of changes.
Branding
For my application I chose the name “daikon”. Daikon is a very popular vegetable in Japan and I often see it on local markets. Its colors (white + green) are associated with freshness, ecology and health, and it is a reference to the functionality of my application.

Results
Final Prototype

Try my prototype!
Promo video
*In this article I used the unsplash.com photo library and Stubborn graphics library.
