Supplementary Material - Supporting Usability Inspection Education with a Tailored ChatGPT: An Empirical Study on Learning Heuristic Evaluation

Experimental Setup:We conducted the experiment over two separate days. On the first day, the participants inspected the object Canva (Web version), while on the second day, they inspected the object Skoob (Web version). Our study had 31 participants (undergraduate students enrolled in the HCI - Human-Computer Interaction Course).Initially, participants were introduced to the experiment's objective and the procedure for the activity to be performed. On the first day, the class was divided into two groups G1 and G2, each assigned a different usability inspection method. G1 performed the usability inspection manually, while G2 used Solaria-GPT. On the second day, when evaluating a new system, the groups switched methods: G1 used Solaria-GPT, while G2 conducted the manual inspection. The experiment lasted 1 hour and 20 minutes per session. All participants received a usability inspection guide according to the assigned inspection method.