Abstract
The vending machine promotes automation of sale, saving of sale staff, extension of sale time, expansion of sale base. But, in the troubleoutbreak quick correspondence of repayment handling doesn't completed. The people keep away using vending machine from a fall of reliability. It is expected that the people will change of behavior. By this studies presence of various trouble experience we investigate influence for decision making in using vending machine. We lead evaluation standard data for improvement of reliability into the machinery development of future. We did questionnaire investigation about presence of trouble. As a result, we report the tendency that was found every attribute.
