Create an ER diagram for the requirements below. - Parts have a unique number, name, and...

Create an ER diagram for the requirements below.

- Parts have a unique number, name, and production year.

- Car company has a unique number, name and country information

-Automakers make multiple cars.
It has a serial number and a name.
but, There can be no more than two companies making one car.

-Parts are used in many cars. When a part is used in a car, Save the part usage date and quantity information.

Expert Solution

E-R diagram:- E-R diagram is an entity relationship diagram which represents the relationship between the entities with their attributs.This is a model which defines how the entitiestheir attributs and their objects such as people their object and certain ideas are related to each other in single process. it works as step by step process flow. Some doffrenet symbols are used in E-R diagram to represents entity attributs and relationship between them such as :

1. Rectangle used to define the entity in E-R diagram.

2. Ellips used to represent objects or attributs.

3. Diamond shape used to represent relationship between entities.

venereology answered 2 years ago

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