ER-Model
August 26, 2024Database-Management-System
August 26, 2024Database-Management-System
| Question 618 |
An Entity – relationship diagram is a tool to represent :
| Data model | |
| Process model | |
| Event model | |
| Customer model |
Question 618 Explanation:
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to properties of the real world entities. For instance, a data model may specify that the data element representing a car be composed of a number of other elements which, in turn, represent the color and size of the car and define its owner. The “data model” may be defined using the entity-relationship data model.
Correct Answer: A
Question 618 Explanation:
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to properties of the real world entities. For instance, a data model may specify that the data element representing a car be composed of a number of other elements which, in turn, represent the color and size of the car and define its owner. The “data model” may be defined using the entity-relationship data model.