More reviews on different customer satisfaction. Customer satisfaction is their response to the perceived difference between the known experiences and expectations (Parasuraman and ctg, 1988; Spreng and ctg, 1996). That is, the experience of clients using a service and results after the service is provided. Most specifically, the satisfaction of customers is the mood, the feeling of customer in a company when their expectations are met or exceeded response throughout the lifecycle of your product or service. Customer satisfaction is achieved will get loyalty and continued to buy the company's products.A common theory to examine the satisfaction of the customers is the theory of "expectation-validation". The theory was developed by Oliver (1980) and was used to study customer's satisfaction with the quality of the services or products of an organization. The theory that includes two small processes work independently to the satisfaction of the customers: the expectation of service before purchasing and feel about the service after it had experienced. According to this theory, can understand the clients ' satisfaction is the process as follows:
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