Data Base Management Systems

Designing a data base

*	Preliminary analysis
*	Input analysis/design
*	Output analysis/design
*	Hardware and software selection

Data base assignment specifics

DBMS's are special sets of programs that manage the storage, access, updating and maintenance of a database. They vary in size, format and use. The major determinant in choosing a computer for a library/information setting should be based on the type of data bases that will be used on it. You should consider the estimated maximum size of the data bases that will be used in considering the RAM and hard drive capacities.

DBMS's are stored as FILES

Each File is made up of RECORDS

Each record is made up of FIELDS (sometimes referred to a CATEGORIES)

Each field is made up of CHARACTERS (bytes) And, of course, each character is made up of bits.

There are three basic types of databases.