Managing the databaseDBMS ( Database Management system• It handles many of the complex data management chores handles by thefile system’s DP specialist.• It performs them with far greater finesse and sophistication.• DBMS allows those chores to be performed without the tedious and timeconsuming programming required in the file managing system.• The DBMS provide a framework in which is strict procedures andstandards can be enforced
Managing the database : A Shift in FocusThe Role of DP Managers•Changes from an emphasis on programming to a focus on the broadermanagement aspects of the organization’s data resources and on theadministration of the complex database software itself.•DP managers perform different functions in a database environment.She/he might be promoted to system administrator.The system administrator usually:•evaluates database designs,•maintains the database software,• assigns the right to use database(s) to select individuals•And coordinates the development of applications based on the dataresources
Managing the database : A Shift in FocusAlthough the database system yields considerable advantages overprevious data management approaches, database systems do imposesignificant costs.For Example:1. Increased Costs – Database system require sophisticated hardware and software and high skilled personnel.2. Management complexity – Database systems interface with different technologies and have significant impact on a company’s resources and culture.3. Maintaining currency – To maximize the efficiency of the database system, you must keep your system current.4. Vendor dependence- Given the heavy investment in technology and personnel training, companies may be reluctant to change database vendors.