Table 3 Results from the System Usability Scale

Q1

I think that I would like to use this system frequently.

1

3.0 (1.4)

3.3 (1.5)

3.1 (1.4)

2

–

3.2 (1.2)

–

\(Q2^\circ\)

I (did not) find the system unnecessarily complex.

1

3.0 (0.7)

4.3 (0.8)

3.4 (0.9)

2

–

3.6 (0.8)

–

Q3

I thought the system was easy to use.

1

3.0 (1.2)

3.3 (1.1)

3.1 (1.1)

2

–

3.6 (1.0)

–

\(Q4^\circ\)

I (do not) think I would need the support of a technical person to be able to use this system.

1

2.8 (1.2)

2.3 (1.6)

2.6 (1.4)

2

–

2.2 (1.5)

–

Q5

I found the various functions in this system were well integrated.

1

3.4 (1.0)

4.3 (0.8)

3.7 (1.0)

2

–

3.2 (1.5)

–

\(Q6^\circ\)

I (did not) think there was too much inconsistency in this system.

1

3.3 (0.8)

4.5 (0.5)

3.7 (0.9)

2

–

4.0 (0.6)

–

Q7

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

1

4.0 (0.9)

4.5 (0.5)

4.2 (0.9)

2

–

3.8 (1.0)

-

\(Q8^\circ\)

I (did not) find the system very cumbersome to use.

1

2.9 (1.1)

3.5 (1.1)

3.1 (1.1)

2

–

3.0 (0.9)

–

Q9

I felt very confident using the system.

1

3.3 (1.2)

4.3 (0.4)

3.6 (1.1)

2

–

4.2 (0.4)

–

\(Q10^\circ\)

I (did not) need to learn a lot of things before I could get going with this system.

1

3.9 (1.0)

3.8 (1.3)

3.8 (1.1)

2

–

4.2 (1.2)

–

1

56.7 (17.2)

69.4 (15.2)

60.6 (17.7)

Total score \(SUS_{total}\)

2

–

62.5 (8.9)

–