Object–relationship modeling

Object-relationship modeling is a way to draw pictures to help us understand how things in the world are related to each other. Imagine you are playing with a bunch of toys, like a toy car, a toy house, and some toy people. Object-relationship modeling helps us see how the toys are connected.

For example, we can draw a picture of the toy car and put an arrow pointing to the toy people. This means that the toy car is related to (or connected to) the toy people because they can ride in the car.

We can also draw an arrow from the toy house to the toy people. This means that the toy people can go inside the house and that they are related to the house.

We can draw more arrows to show other relationships, like a toy dog and a toy bowl. We can draw an arrow from the dog to the bowl to show that the dog is related to the bowl because it eats from it.

Object-relationship modeling can be used for many things, not just toys. For example, we could draw a picture to show how a company's employees are related to their managers, or how different parts of a car are related to each other. It helps us understand how things work together and how they are organized.