Computer Science / Unit 8 CS 0414 short lesson, about 20 seconds
The Data Model
Captions available
The idea
A data model is an abstract model containing concepts to describe a database's structure, the operations for manipulating those structures, and the constraints the database should obey.
In practice
A city map's legend — what exists, what moves, what's forbidden — is the same three-part idea.
Where people slip
Structure, operations, constraints — a model missing one is incomplete.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
Something wrong in this lesson? Flag it · Sources for Computer Science