4 - Usability Definition and Heuristics 1 Visibility of system status
5 - Usability Heuristic 2 Match between the system and the real world
6 - Usability Heuristic 3 User control and freedom
7 - Usability Heuristic 4 Consistency and standards
8 - Usability Heuristic 5 Error prevention
9 - Usability Heuristic 6 Recognition over recall
10 - Usability Heuristic 7 Flexibility and efficiency of use
11 - Usability Heuristic 8 Aesthetic and minimalist design
12 - Usability Heuristic 9 Help users recognize diagnose and recover from errors
13 - Usability Heuristic 10 Help and documentation
