Table 5.

Result of heuristic evaluation

Number	Title of principal	Total questions	Number of problems reported	Percentage of problems reported	Average severity of problems
1	Visibility of system status	29	9	31.03	1.18
2	Match between the system and the real world	24	4	16.67	1.60
3	User control and freedom	23	9	39.13	2.00
4	Consistency and standards	51	24	47.06	1.91
5	Help users Recognize, diagnose, and recover from errors	21	9	42.86	2.63
6	Error prevention	15	5	33.33	2.68
7	Recognition rather than recall	40	17	42.50	2.04
8	Flexibility and minimalist design	16	7	43.75	2.63
9	Aesthetic and minimalist design	12	6	50.00	1.33
10	Help and documentation	23	13	56.52	2.28
11	Skills	21	8	38.10	1.88
12	Pleasurable and respectful interaction with the user	14	2	14.29	1.50
13	Privacy	3	3	100.00	3.23
Total		292	116	39.73%	2.07