Table 2.

Results of usability evaluation using SUS

		Strongly				Strongly
		disagree				agree
		1	2	3	4	5
(1)	I often want to use this system.	0(0%)	0(0%)	5(55.6%)	4(44.4%)	0(0%)
(2)	I found this system unnecessarily complex.	1(11.1%)	5(55.6%)	3(33.3%)	0(0%)	0(0%)
(3)	I thought this system was easy to use.	0(0%)	0(0%)	6(66.7%)	2(22.2%)	1(11.1%)
(4)	You may need technical support to use this system.	0(0%)	3(33.3%)	1(11.1%)	5(55.5%)	0(0%)
(5)	felt that this system was simple and easy to operate.	0(0%)	2(22.2%)	0(0%)	5(55.6%)	2(22.2%)
(6)	This system was often inconsistent.	3(33.3%)	6(66.7%)	0(0%)	0(0%)	0(0%)
(7)	I think most people can learn how to use this system very quickly.	0(0%)	0(0%)	2(22.2%)	5(55.6%)	2(22.2%)
(8)	I found this system very awkward.	5(55.5%)	2(22.2%)	2(22.2%)	0(0%)	0(0%)
(9)	I am confident in using this system.	0(0%)	0(0%)	0(0%)	8(88.9%)	1(11.1%)
(10)	I thought I needed to learn a lot before I started using this system.	1(11.1%)	4(44.4%)	2(22.2%)	2(22.2%)	0(0%)