Table 7 Usability evaluation result
The title of the heuristic principles | Three evaluators | Tow evaluators | One evaluator | Total problems | The average degree of intensity | Aggravation of the problem |
|---|---|---|---|---|---|---|
1. Clarity of system status | 0 | 1 | 0 | 1 | 1 | Cosmetic |
2. Correspondence between the system and the real world | 1 | 0 | 0 | 1 | 0.3 | Cosmetic |
3. User freedom of action and mastery of the system | 0 | 0 | 0 | 0 | 0 | No problem |
4. Compliance with uniformity and standards | 0 | 1 | 0 | 1 | 1 | Cosmetic |
5. Error prevention | 3 | 0 | 0 | 3 | 3 | Major |
6. Identifying instead of remembering | 0 | 0 | 0 | 0 | 0 | No problem |
7. Flexibility and simple design | 0 | 0 | 1 | 1 | 0.6 | Cosmetic |
8. Aesthetic aspects and simple design | 1 | 0 | 0 | 1 | 1 | Cosmetic |
9. Helping users understand how to diagnose and recover from errors | 4 | 0 | 0 | 4 | 3.3 | Catastrophe |
10. Guidance and documentation | 0 | 1 | 0 | 1 | 1 | Cosmetic |
11. Skills | 0 | 0 | 0 | 0 | 0 | No problem |
12. Pleasant and respectful interaction with the user | 0 | 0 | 0 | 0 | 0 | No problem |
13. Confidentiality | 2 | 0 | 0 | 2 | 3.5 | Catastrophe |
Total | 11 | 3 | 1 | 15 | Â | No problem |