## 9 Useberry Testing of Hi-Fi Design  
In the conducted Useberry testing, which involved nine users, the results showed mixed success in task completion (Figure 17). Out of nine users, six successfully completed the test, while three skipped certain tasks, resulting in a completion rate of 67% and a dropout rate of 33%. The average time required to complete the entire study was 4 min and 13.7 s. Block-by-block analysis reveals different success rates and times required to complete tasks:  
Figure 17: Display of statistics of overall Useberry testing. Block 1 had eight users, six of whom successfully completed the task, while two dropped out. The average time spent on this task was 1 min and 2.7 s.  
Block 2 was successful for all six users who participated, with an average time of 24.7 s.  
Block 3 had a lower success rate, with four completed tasks out of six users, while the average time lasted 1 min and 20.5 s.  
Block 4 also had a 100% success rate, with all six users completing the task in an average of 8.4 s.  
Block 5 recorded five successfully completed tasks out of six users, with an average time of 58.5 s.  
Overall, the data suggest that some task blocks were more challenging than others, with longer durations and higher dropout rates. The results also indicate that some users quickly gave up (e.g., sessions of 11.1 s), which may point to engagement issues or technical difficulties during testing. Longer sessions, lasting up to 9 min, show that some users encountered difficulties or took more time to thoroughly study the tasks before completing them. 1. Conclusion for Task 1: Launching the application (Figure 18)  
Eight users participated in the task of launching the application, six of whom successfully completed the task, while two dropped out, resulting in a completion rate of 75% and a dropout rate of 25%. The average time required to complete the task was 1 min and 2.7 s.  
Analyzing the user sessions, it is evident that users who completed the task spent varying amounts of time, ranging from 16.6 s to 2 min and 54.3 s. The fastest user completed the task in just 16.6 s, while the slowest user spent almost 3 min. This variation in time suggests that some users quickly understood and successfully executed the task, while others may have encountered difficulties or took more time to familiarize themselves with the application before completion. 2. Conclusion for Task 2: Finish the 99% challenge (Figure 19)  
The task \"Finish the 99% challenge\" proved to be very successful among users. All six participants successfully completed the task, resulting in a success rate of 100%. No users  
Figure 18: Display of statistics Task 1: starting the application. dropped out or skipped this task, indicating that it was intuitive and easy to understand for all participants. Since all users completed the task, it can be concluded that the instructions were clear and that there were no significant obstacles or difficulties hindering the users. Visualization of user flows and click tracking could provide additional insights into how users approached the task, but the current data clearly show that it was well designed and user friendly. In conclusion, this task was extremely well received by users, with no dropouts and relatively short completion times. These results suggest that users found the task challenging but not overly difficult and were able to complete the challenge with ease. Conclusion for Task 3: View your progress this week (Figure 20)  
The task \"View your progress this week\" showed mixed results in completion success among users. Out of a total of six users, four successfully completed the task, while two users dropped out or skipped it. This results in a success rate of 67%, indicating certain challenges faced by some users. The average time required to complete the task was 1 min and 20.5 s, which is significantly longer compared to the previous tasks. This may suggest that the task was more complex or less intuitive, requiring additional time to find and review the progress information.