Table 6 Ten items that make up the standard SUS (odd-numbered items are positively phrased, even-numbered items are negatively worded)

1

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

2

I found the system unnecessarily complex.

3

I thought the system was easy to use.

4

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

5

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

6

I thought there was too much inconsistency in this system.

7

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

8

I found the system very cumbersome to use.

9

I felt very confident using the system.

10

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