A database can be thought of as a set of
logically related files organized to facilitate access by one or more
applications programs and to minimize data redundancy. This concept does not
imply that all data relating to a companys business should be contained on a
single database, but simply that all records in a database should be related and
that redundant data should be minimized.
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General Objectives
The elimination of data redundancy is only
one of many reasons for establishing a database. Others include:
- Integrate existing data files
- Share data among all users
- Incorporate changes easily and quickly
- Simplify the use of data files
- Lower the cost of storing and retrieving data
- Improve accuracy and consistency
- Provide data security from unauthorized use
- Exercise central control over standards
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