Philip Kotler defines service: Service is an activity or benefit provision
aims to exchange, mostly invisible and does not result in the transfer of ownership. The implementation of the service may be tied or not tied to physical products.
In short, there are many service concepts are stated under different angles but overall achievement is: "Service is operating intended to meet the specific needs of people. Features of the service is non-existent in specific product types (tangible) as goods directly but it serves certain needs of society ". b. Quality of Service:
Quality of service is what customers perceive. Quality of service is based on the perception or the perception of customers about their individual needs.
According to Parasuraman Zeithaml and Berry (1985), the quality of service as perceived by the customer as a service Horizontal creating value for their previous expectations. Also according to the expectations Parasuraman in service quality are the wishes of the customer, which means they feel the suppliers must perform rather will implement the requirements of the service.
According Hurbert (1995), the previous Use a customer service has formed a "scenario of quality services. When the script of the customer and supplier are not the same. Customers will feel dissatisfied.
Crolin and Tailor (1992) suggest that customer satisfaction should be evaluated in a short time, and quality of service should be assessed according to the customer's attitude about the service in a long time.
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