CHAPTER TWO, LITERATURE REVIEW2.0 Literature ReviewAn in-depth analysis will focus on the variable under study of hospitality information system and customer needs for define and support in the future a theoretical framework2.1 Information systemInformation is the meaningful data in a good structure that presents itself to the recipient. the information fits into the knowledge and is linked to the situation. Data becomes information when information is modified to communicate suggestion, knowledge, or conclusions. information is an important managerial skill. the characteristics of information are: structure, accuracy, time, possibility and originality. Information has often been defined as interpreted data (callaos 2002). Information is a generally established variable of organizational effectiveness. Furthermore, information is one of the parts of a method that directs to the organization, and retrieves and uses organizational information, which in turn leads to decision making that provides services to customers (Porter and Millar). , 1985) Data is an important factor in the development and maintenance of information systems. there are several types of data in information systems management, such as: data requirements, data standards are fundamental to the growing use of electronic data and it will grow and operate data requirements data communication. data sources include explanations, estimates, judgments and opinions. Data integrity is a critical factor in the success of an information system, in addition to providing accurate information and confidence in the system. solid data and recovery of system reliability which can be protected against changes in construction, in addition, it is easier to add value...... middle of paper ......uests ( Brotherton 1999). The main functions of any act in the hospitality industry include reception, resorts, motels, inns, gust house, members clubs, car rentals, conventions, attractions, special events and other services for travelers and tourists. hospitality is concerned in serving the guests to provide them with qualified services. accommodation divided into two dimensions: service accommodation consists of where meals are provided, such as hotels and guest houses and self-catering accommodation consisting of apartments where occupants provide their own food. The first and most important occupation of the hospitality industry is to establish a relationship otherwise, to encourage the exchange of goods and services, between those who give hospitality (hosts) and those who receive it (guests) ( Falkner and Russell 2000) .