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Table 2 Categorization of problems based on evaluation questions and mean problem severity

From: Evaluating the usability of a cancer registry system using Cognitive Walkthrough, and assessing user agreement with its problems

Category based on evaluation questions

n (%)

Severity n (%)

Average severity

Cosmetic

Minor

Major

Catastrophe

Notifying of action at hand

47 (41.22)

2 (4.25)

22 (46.80)

16 (34.04)

7 (14.89)

2.16 ± 0.80

Existence of necessary controls

15 (13.15)

0

11 (73.33)

4 (26.66)

0

1.92 ± 0.50

Visibility and clarity of controls for users

27 (23.68)

0

10 (37.03)

16 (59.25)

1 (3.70)

2.21 ± 0.53

User perception of the work process in the system

25 (21.92)

1 (4)

10 (40)

11 (44)

3 (12)

2.17 ± 0.74

Total

 

3 (2.63)

53 (46.49)

47 (41.22)

11 (9.64)