Table 3.
Distribution of the number of usability violations classified into heuristics per expert.
| Heuristics | Expert 1 | Expert 2 | Expert 3 | Expert 4 | Expert 5 | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HE1 | HE2 | HE1 | HE2 | HE1 | HE2 | HE1 | HE2 | HE1 | HE2 | HE1 | HE2 | |
| (1) Visibility of system status | 0 | 8 | 0 | 7 | 1 | 4 | 3 | 3 | 1 | 4 | 5 | 26 |
| (2) Match between system and the real world | 5 | 4 | 8 | 7 | 7 | 4 | 14 | 11 | 15 | 3 | 49 | 29 |
| (3) User control and freedom | 1 | 0 | 0 | 3 | 1 | 4 | 3 | 5 | 6 | 2 | 11 | 14 |
| (4) Consistency and standards | 7 | 11 | 3 | 5 | 2 | 18 | 6 | 2 | 2 | 7 | 20 | 43 |
| (5) Error prevention | 2 | 6 | 3 | 0 | 5 | 8 | 6 | 4 | 2 | 4 | 18 | 22 |
| (6) Recognition rather than recall | 2 | 7 | 3 | 9 | 1 | 10 | 2 | 0 | 5 | 1 | 13 | 27 |
| (7) Flexibility and efficiency of use | 3 | 5 | 2 | 3 | 0 | 6 | 1 | 4 | 2 | 4 | 8 | 22 |
| (8) Aesthetic and minimalist design | 5 | 3 | 3 | 4 | 5 | 19 | 4 | 0 | 3 | 4 | 20 | 30 |
| (9) Help users recognize, diagnose, and recover from errors | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 5 | 0 |
| (10) Help and documentation | 1 | 1 | 0 | 0 | 0 | 5 | 1 | 3 | 1 | 1 | 3 | 10 |