Purpose: This paper develops a smart system based on the concept of Industry 4.0 to prevent customer dissatisfaction. The value of this prevention system is that it enables hoteliers to interact with customers by understanding what they like/dislike from their behaviors via data analysis....

This study applied the Kano two-dimensional quality model and quality function deployment (QFD) to develop the black bean’s reputation as a health food and identify quality attributes of consumers’ needs in order to effectively control the attributes. This study first conducted a literature...