Case Study


UX researcher, UX designer, UI designer​​​​​​​


Sep 2022 – Dec 2022


user research, wireframing, prototyping, designing

The product

Application is for better experience in cafeteria and should help people to order coffee.​​​​​​​


People don’t want to lose their seats based on their order. In some cases people want to sit and order from their place to keep this place in the cafeteria.


Create app that will allow to browse menu, create an order and select the table in the cafeteria.

Cafeteria mobile app

Understanding the user

User research: summary

I conducted user interviews and created empathy maps to understand the users. A primary user group identified through user research was working adults in the office who want to enjoy coffee.

This user group revealed problems like: delivery/pickup – coffee could be cold, some of customers want to sit and enjoy the coffee in place.

User research: pain points

Not picked up in time and coffee could be cold.
Ordering in place
Why using app in cafeteria to ordering a coffee?
Missing assistive technologies

Persona: Tom

Cafeteria Mobile App Persona Tom

User journey map

Mapping Tom’s user journey revealed how he can order a coffee from his place in cafeteria.

Cafeteria Mobile App

Problem statement

Starting the design

Paper wireframes

My sketches for the application. 

Digital wireframes

Low-fidelity prototype

Usability study: findings

Round 1 findings

1.  Users want more languages

2.  Users want order more types of coffees

3.  User want more information about picking table

Round 2 findings

1.  Missing information about table in summary

2.  Missing table information in the summary page

Refining the design


Cafeteria Mobile App before and after usability study

High-fidelity prototype

Accessibility considerations


Users want more information about table. I used images how the table looks like and I added more description about the place.


Users want information about picked table in the summary page. I added this information to the overview.

Going forward



Number of downloads are doubled than we expected. 

What I learned

I learned that doing a usability study multiple times is very useful.

Let me leverage creativity and technology to accomplish your mission.