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Table 1 Questionnaire answers regarding physical user interfaces

From: Ensuring usability of future smart energy control room systems

Item Mouse Keyboard Pen & paper Touch device Digital pen Voice
Which Input devices do you use? (percentage of operators agree) 100,00% 97,50% 27,50% 5% 0% 0%
Item   Minimum Maximum Average
How many displays are available to solve your tasks? (Answer with one number)     2 13 6.13