Hello ! This Case Study involves the process of designing an app for ordering Sushi for UX certificate program.

1. Case study of Sushi
Restaurant app
Vimal S

2. The product:
“My App” is a Sushi Restaurant app that allows
customers to order their favorite Sushi from their
home. They offer a wide variety of Sushi. The target
customers are the people who like Sushi and lack
the time or ability to prepare them at home.
Project overview
Project duration:
September 2022 to December 2022
Preview of selected
polished designs.

3. The problem:
Busy individuals who lack the time or ability
to prepare a meal and want to order food
from restaurant.
Project overview
The goal:
Design an app for the Sushi Restaurant that
allows customers order and pick up Sushi from
the restaurant.

4. My role:
UX designer designing an app for Sushi
Restaurant.
Project overview
Responsibilities:
Conducting interviews, paper and digital
wireframing, low and high-fidelity prototyping,
conducting usability studies, and iterating on
designs.

5. Understanding
the user
● User research
● Personas
● Problem statements
● User journey maps

6. User research: summary
I conducted interviews and created empathy maps to understand the users I’m designing for and
their needs. From user research it is identified that the primary user group was working adults who
don’t have time to cook meals.
By research it is identified that time was not the only factor that limited cooking at home, other
factors like the need to get groceries for cooking limited cooking meals at home. This user group
was annoyed by the waiting time at restaurants and they feel like they would be benefited with a
dedicated food ordering app.

7. User research: pain points
Time
Working adults are too
busy to spend time to
prepare meals
Accessibility
Platform for ordering
food are not equipped
with assistive
technologies like screen
reader and translation
feature
Payment and
checkout
Food ordering platforms
not having easy payment
and checkout options
makes it difficult to make
purchase
Order tracking
Without proper order
tracking the wait time
increases or some warm
foods gets cold when it
takes time for the arrival
1 2 3 4

8. Persona: Reena
Problem statement:
Reena is a busy working
mother with dyslexia
who needs an easy way
to order and pickup
sushi from restaurant
because they work day
and night shifts and have
no time to cook dinner.

9. User journey map
Image of user
journey map
Mapping Reena’s user
journey revealed how
helpful it would be for users
to have access to a
dedicated sushi ordering
app.

10. ● Paper wireframes
● Digital wireframes
● Low-fidelity prototype
● Usability studies
Starting
the design

11. Paper wireframes
Drafting each screen for
paper wireframe for many
iterations ensures that the
user pain points are met
in our design. I prioritized
a easy and quick ordering
process to help users save
time.
The elements that were highlighted with stars were used in final version
of the homepage

12. Digital wireframes
Based on feedbacks from
user research I decided to
make the home screen
simple like having simple
browse option.
Users can
browse their
food from
home page
itself
Users get
recommendations
based on their
recent orders

13. Digital wireframes
Based on feedback from
user research, I decided to
make easy navigation with
assistive technology for the
users to navigate easily.
Easy access
to navigation
that is screen
reader
friendly

14. Low-fidelity prototype
The low-fidelity prototype
connected the primary user flow
of ordering sushi, so the
prototype could be used in a
usability study with users.
View the low-fidelity prototype
using this link: Low - fidelity
prototype

15. Usability study: findings
Write a short introduction to the usability studies you conducted and your findings.
Round 1 findings
Users want to complete order from
compare screen
1
Users expect improvement in visuals
2
Round 2 findings
Users want smooth animations in
navigation
Users want a compare screen
1
Users expect multiple payment
methods
2
Users want a confirmation page
3 3

16. ● Mockups
● High-fidelity prototype
● Accessibility
Refining
the design

17. Mockups
Early designs had plain
white backgrounds but
after usability studies, I
added some visual
elements like colors and
shadows to the design to
make it visually appealing
Image of
selected
screen before
usability study
Before usability study After usability study
Image of
selected
screen after
usability study

18. Mockups
The second usability study
revealed that the users
required options to
complete order from
compare screen. After the
study I added the button to
complete order and added
some visual elements to the
design
Before usability study After usability study
Image of
selected
screen before
usability study
Image of
selected
screen after
usability study

19. Mockups
Main
mockup
screen for
display
Main
mockup
screen for
display
Main
mockup
screen for
display
Main
mockup
screen for
display

20. High-fidelity
prototype
The high-fidelity prototype
after the second usability
study had a clear user flow
from logging into the app
to completing the order
including the feature to
compare items.
View the Sushi Restaurant
app high-fidelity prototype
Screenshot of
prototype with
connections or
prototype GIF

21. Accessibility considerations
Used icons to help make
navigation clear and
easier.
Used detailed imagery for
different types of Sushi
the restaurant offers.
Provided alt text to
images for screen readers
to help the users who are
visually impaired.
1 2 3

22. ● Takeaways
● Next steps
Going forward

23. Takeaways
Impact:
The app solves users problems by helping
them order their favorite Sushi.
Quote from user feedback:
“Ordering sushi through the app is easy, the
navigation and overall user flow is clear to use.”
What I learned:
While designing the app, I learned that you
have to put users needs first. Multiple usability
studies have to be done to ensure a better
user experience. Users’ feedbacks are
necessary to make the design better.

24. Next steps
Conduct further usability
studies to ensure that the
users pain points have
been addressed.
Conduct user research to
understand more user
problems.
Improve the design
according to the users
feedbacks from further
usability studies.
1 2 3

25. Let’s connect!
Thank you for your time reviewing my work on the Sushi restaurant app ! If you’d like
to see more or get in touch, my contact information is provided below.
Email: devanandsarvesh77@gmail.com