Voltar

Case study on the use of self-service kiosks in supermarkets

7 min of reading
MobileSelf-checkoutSupermarket
Selfmarket
  • CompanySelfmarket
  • RoleProduct Designer
  • Duration1 month
  • Responsibilities
    • Conduct user research
    • Create wireframes and prototypes
    • Collaborate with developers

With the advancement of technology, more and more supermarkets are using self-service systems as they are theoretically faster and lower cost. This case study focuses on analyzing the impacts and problems arising from the implementation of these systems and proposing a solution to make the experience more pleasant and accessible.

Mobile application with payment integration and self-service features. Accessible for visually and motor-impaired users, focusing on usability and efficiency.

Low fidelity prototype

After building the flow, the prototyping stage was initiated. At this first moment, low fidelity screens were idealized as they are faster to validate an initial idea:

wireframe-1.png
wireframe-2.png
wireframe-3.png
wireframe-4.png

Complete low fidelity prototype:

Acessar link do protótipo interativo

Usability tests

Some usability tests were executed on the low fidelity prototype, from which some flow and writing errors were observed. Subsequently corrected in the high fidelity prototype.

Test planning:

  • Definition of activities to be tested;
  • Recruitment of users who resembled the personas;
  • Creation of the script detailing what would be the "success" of the selected activities for testing.

Metrics analyzed in the tests:

  • Completion rate;
  • Complexity rate;
  • Execution time

Moodboard

To contextualize the entire visual identity of the application, a board was created to be followed as an aesthetic / visual model for creating the styleguide.

Moodboard

Styleguide

To contextualize the entire visual identity of the application, a board was created to be followed as an aesthetic / visual model for creating the styleguide.

Colors
Typography
Iconography
Buttons

High fidelity prototype

Taking into consideration the styleguide and insights from usability tests, it was possible to structure the high fidelity prototype:

prototype-1.png
prototype-2.png
prototype-3.png
prototype-4.png
prototype-5.png

Complete high fidelity prototype:

Acessar link do protótipo interativo

Conclusion and learnings

In carrying out this case study, it was possible to verify improvement points in the supermarket user experience and identify the social impacts of implementing self-service systems.

Using the Shadowing practice, it was possible to closely observe the real experience of users and see the frustration of some people when using self-service kiosks.

The research stage was essential to identify the real pains of users and assist in the decision-making process for the later stages.

You can see the complete case presentation through the link below:

Acessar link da apresentação completa

Next project

Case study on structuring an artificial intelligence platform for legal petitions

Ticio cover