Midair Gestural Techniques for Translation Tasks in Large-Display Interaction

Table 2

User satisfaction evaluation metrics and corresponding questions.

Satisfaction metrics	Question (rated on 9-point Likert scale)
General evaluation	How can you evaluate the technique in general?
Pleasantness	How pleasant was it to use the technique?
Quickness	How fast was the system reacting to your actions?
Accuracy	How accurate was the system reacting to your actions?
Efficiency	How successful were you in accomplishing what you were asked to do?
Physical	Demand how physically demanding was the task with the technique?
Mental demand	How mentally demanding was the task with the technique?
Temporal demand	How hurried or rushed was the pace of the task?
Frustration	How insecure, discouraged, irritated, stressed, and annoyed were you?
Distractibility	How does the software distract you from the performance of tasks?
Usability	How usable can you find the technique?