•Total time to complete the task

•The time to select a task after entering the main homepage

•The number and type of errors committed per task

•The number of times the user goes back to the main user selection menu page

•The number of times user tries to search or help feature instead of selecting an icon

•Number of times the user seems visibly frustrated or asks for help

•The number of users making a particular error

•The number of users completing the task successfully

•The number of users unable to complete the task successfully