REVIEW OF RELATED LITERATURE AND STUDIES
Studies rely on information researched by the proponents.
Review of Related Literature
In exploration, we find new techniques, new knowledge, even develop new substances, gadgets, equipment, processes or procedures, imagination and skill is employed by the researcher. The commodities, new devices, services, in technology are needs of man for a better fuller life which is the concern of the research. These useful arts are the products of the technological environment and the end-user is society in general. The excerpt was stated by Josefina Estolas in the book Fundamentals of Research (1995). Science and technology are essential for national development and progress. The State shall give priority to research and development, invention, and their utilization, and to science and technology education according to the 1987 Philippine Constitution (Article XIV, Section 10). Since computer power was the critical resource, efficiency of processing became the main goal. Emphasis was placed on automating existing process such as purchasing or paying, often within single department as indicated by Jeffrey A. Hofer on Modern System Analysis and Design (1996). A major purpose of a database system is to provide users with an abstract view of data. That is the system hides certain details of how the data are stored and maintained as stated by Abraham Silberschatz, Database System Concepts (1999). A database is an organized collection of facts and information. An organizations database can contain facts and information on customers, employees, inventory, competitors, sales information and much more. Most Managers and executive believe a database is one of the most valuable and important parts of a computer-based Information System in accordance with Ralph M. Stair’s Fundamentals of Information System (2001). Initially, all processing was performed on mainframe using a batch approach. Time-sharing was an improvement, but...
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