For a small personal database, one person defines, constructs and manipulates the database . For a large organization, many people are involved in the design, use and maintenance of the large database Two types of actors of DBMS: 1. Actors on the Scene (day-to-day use of large database ) 2. Workers behind the Scene ( work to maintain database environment and are not involved in its contents ) Actors on the Scene Database administrators (DBA) are responsible for: Authorizing access to the database Coordinating and monitoring its use Acquiring software and hardware resources Database designers are responsible for: Identifying the data to be stored Choosing appropriate structures to represent and store this data . End users - People whose jobs require access to the database. Types of End Users • Casual end users • Naive or p...
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