Service Quality of Hospitality Information System has emerged as an important function under discussion for the hospitality industry in IRAN, which has been identified as one of the efficient structures for organizational performance within the competitive market regarding hospitality information system (Lewis 1993). Hospitality information system service quality provides equivalent services, establishing high service quality, integrating customer satisfaction, and expanding suppliers' organizational profitability and market share (Hoffman & Bateson 1997). Most organizations in the hospitality industry in IRAN have conducted research on the significant issues in evaluating service quality, customer satisfaction and customer expectations regarding service quality. According to Sudipta, &Adittya, (2005), hospitality information system service quality has emerged as an important issue for the hospitality industry and has been identified as one of the most effective means of building a competitive position and improving organizational performance. However, customer satisfaction and expectations are two important factors in evaluating service quality and making essential decisions regarding support and future investments. One of the most important development aspects in hospitality information system is the growing consideration towards the service quality of hospitality information system by providing useful information and high-quality service to customers. The important factors of hospitality information system are distributed into different subdivisions which provide useful information to tourists and customers, not only online brochures and general information about the p......paper medium and increase organizational profits. Measuring customer perspective on service quality of hospitality information system in hotel industry within Iranian society can be a key tool to provide and analyze customer feedback, policies and practices, employee engagement, education and training, organizational marketing. The met expectations model is one of the main models that hotels use in Iran, to evaluate the terms of service quality with different perspectives between customers and the organization. Expectations and service delivery from two different perspectives can help the organization identify strengths and weaknesses in service quality and service delivery. Furthermore, this allows organizations to measure the quality of service and performance of the hospitality information system in a broader area .