Table 7.

System Usability Scale survey with 40 randomly selected users in Lleida and Tarragona.

Questions	1	2	3	4	5
I think that I would like to use this system frequently	0	0	0	7	33
I found the system unnecessarily complex	40	0	0	0	0
I thought the system was easy to use	0	0	0	11	29
I think that I would need the support of a technical person to be able to use this system	30	10	0	0	0
I found the various functions in this system were well integrated	0	0	0	16	24
I thought there was too much inconsistency in this system	40	0	0	0	0
I would imagine that most people would learn to use this system very quickly	0	0	0	3	37
I found the system very cumbersome to use	34	6	0	0	0
I felt very confident using the system	0	0	2	8	30
I needed to learn a lot of things before I could get going with this system	35	5	0	0	0