The statements are as follows:

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.

The Likert scale provides a fixed choice response format to these expressions. The choice in an Likert scale always is the neutral element. Using the scale, subjects are asked to define their degree of consent to each given statement. The fixed choices for the five-point scale are named *strongly disagree*, *disagree*, *undecided*, *agree*, and *strongly agree*. During the evaluation of the survey, these names are assigned values [$\mathbf{x}_i$ from zero to four]{} in the order 