II. REVIEW OF THE LITERATURES
A. Service Quality and its Models The service is defined by many authors as interaction activities between server and the client which the server tries to fulfill needs, be over expectation, raise satisfaction and impression [7]-[8].
Fig. 1 illustrates service timeline which expectation comes first as before the interaction between the server and the client. Then the satisfaction occurs after the service and rates the gaps between expectation and actual perceived service experiences [9]. Nowadays, Economic, business and entrepreneurs vision have been constantly influenced by information technologies, communication technologies and the trend of service oriented business [10].