HUMAN-COMPUTER INTERACTION / 2025
Human-Computer Interaction
Two interface design challenges: rethinking how students create quizzes, and making target selection faster in a dense interface.
BAKE-OFF 1 / MOBILE QUIZ CREATION
Quizzes-Tutor
Goal: Redesign the student-facing mobile interface for creating quizzes in IST's Quizzes-Tutor system.
The high-fidelity Figma prototype explores three ways to create a quiz: from scratch, collaboratively with another student, and with AI. The flow focuses on making quiz setup clear while supporting different rules, question types, and access settings.
Evaluation method Wizard of Oz
- Low-fidelity prototype
- High-fidelity prototype
- Figma
Low fidelity
High fidelity
BAKE-OFF 2 / TARGET SELECTION
Selection in Dense UIs
Goal: Find a faster, reliable way to select items from a crowded 80-target grid.
We iterated on how the targets were arranged and signalled. The tested versions used alphabetical grouping, colour changes, sound feedback, and a grouped layout. Each participant completed repeated selection trials. The results below report mean time per target in each iteration.
Evaluation method A/B testing
A/B TEST / 22 PARTICIPANTS
Mean time per target
In the 22-participant sample, Iteration 3 was faster than Iteration 1 (paired test, p = 0.00004). Iteration 2 did not show a significant difference from Iteration 1 (p = 0.341).