Enhanced Cognitive Walkthrough: Development of the Cognitive Walkthrough Method to Better Predict, Identify, and Present Usability Problems

Table 1

Grading of the tasks performed by the home-care ventilator.

	Task	Grade
1	Start treatment	1
2	Set actual time	4
3	Set wake-up alarm	4
4	Set pressure	2
5	Adjustment of what to show in the display	3
6	Show software version	5
7	Show operating hours	4
8	Lock/unlock the panel	2
9	Use the ramp function	2
10	Turn off treatment	1