A database system adds a new dimension to an organization’s management structure. The complexity of this managerial
structure depends on the organization’s size, its functions, and its corporate culture. Therefore, database systems
can be created and managed at different levels of complexity and with varying adherence to precise standards. For
example, compare a local movie rental system with a national insurance claims system. The movie rental system may
be managed by two people, the hardware used is probably a single PC, the procedures are probably simple, and the
data volume tends to be low. The national insurance claims system is likely to have at least one systems administrator,
several full-time DBAs, and many designers and programmers; the hardware probably includes several servers at
multiple locations throughout the United States; the procedures are likely to be numerous, complex, and rigorous; and
the data volume tends to be high.
A database system adds a new dimension to an organization’s management structure. The complexity of this managerial
structure depends on the organization’s size, its functions, and its corporate culture. Therefore, database systems
can be created and managed at different levels of complexity and with varying adherence to precise standards. For
example, compare a local movie rental system with a national insurance claims system. The movie rental system may
be managed by two people, the hardware used is probably a single PC, the procedures are probably simple, and the
data volume tends to be low. The national insurance claims system is likely to have at least one systems administrator,
several full-time DBAs, and many designers and programmers; the hardware probably includes several servers at
multiple locations throughout the United States; the procedures are likely to be numerous, complex, and rigorous; and
the data volume tends to be high.
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