Research Paper
Introduction
Database-management system (DBMS) is a collection of interrelated data and a set of programs to access those data. The collection of data, usually referred to as the database, contains information relevant to an enterprise. The primary goal of a DBMS is to provide a way to store and retrieve database information that is both convenient and efficient.

Database systems are designed to manage large bodies of information. Management of data involves both defining structures for storage of information and providing mechanisms for the manipulation of information. In addition, the database system must ensure the safety of the information stored, despite system crashes or attempts at unauthorized access. If data are to be shared among several users, the system must avoid possible anomalous results.

Because information is so important in most organizations, computer scientists have developed a large body of concepts and techniques for managing data. These concepts and technique form the focus of this book. This chapter briefly introduces the principles of database systems.

Literature Survey

1. Redundancies and inconsistencies can be reduced 2. Better service to the Users 3. Flexibility of the system is improved 4. Cost of developing and maintaining systems is lower 5. Standards can be enforced 6. Security can be improved 7. Integrity can be improved 8. Enterprise requirements can be identified 9. Data model must be developed 10. Data consistency

Methodology 1. Redundancies and inconsistencies can be reduced
In conventional data systems, an organization often builds a collection of application programs often created by different programmers and requiring different components of the operational data of the organization. The data in conventional data systems is often not