2. in addition to how to observe the behavior of the user while using the system, and then you think there are some kind of method which can be used to measure the user's attitude towards the system.
2. In addition to observing the behavior of users while using the system. Do you think there is a way that they can be used to measure the attitudes of users on the system.
2. Besides how to observe the behavior of the user while using the system. Do you think there is any way that can be used to measure the attitude of the user on the system.