Table 3 Results of the system usability scale (SUS)

1

I think that I would like to use this system frequently

7

3.85

0.9897

2

I find the system unnecessarily complex

7

1.71

0.4518

3

I thought the system was easy to use

7

3.71

0.4518

4

I think that I need the support of a technical person to be able to use this system

7

2.57

0.4949

5

I found the various functions in this system were well integrated

7

3.85

0.8330

6

I thought there was too much inconsistency in this system

7

2

0.5345

7

I would imagine that most people would learn to use this system very quickly

7

4.57

0.4949

8

I found the system very cumbersome to use

7

2

0

9

I felt very confident using the system

7

3.71

1.1606

10

I needed to learn a lot of things before I could get going with this system

7

2.14

0.8330

Overall SUS score

73.21