Résumé: Many different data management techniques have been designed, described in the literature, and marketed. With each teehmque there are claims of added flexiblhty and speed. However, because new terms are invented to describe each new technique, the observer is left m a state of confusion when he tries to understand how they work. A description is given oi the basic types of data management techniques, as well as the relation of each to the hardware on which it is used. Then it is shown how these basic elements can be used as building blocks to describe and build more complex data management systems. Finally, there is a discussion of the languages used for programming data management systems.

Langue: Anglais