Major Database Usage Requirements
The major purpose of a database is to provide the information system (in its broadest sense) that utilizes it with the information the system needs according to its own requirements. A certain broad set of requirements refines this general goal. These database requirements translate to requirements for the respective DBMS, to allow conveniently building a proper database for the given application. If this goal is met by a DBMS, then the designers and builders of the specific database can concentrate on the application's aspects, and not deal with building and maintaining the underlying DBMS. Also, since a DBMS is complex and expensive to build and maintain, it is not economical to build such a new tool (DBMS) for every application. Rather it is desired to provide a flexible tool for handling databases for as many as possible given applications, i.e., a general-purpose DBMS.
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