Imagine you have a big toy box. Inside your toy box, you have different kinds of toys like dolls, cars, and building blocks. Now, let's say you have a friend who also has a toy box with different kinds of toys.
If you want to play with your friend's toys, you may ask them to bring over some toys, or you may go over to their house to play with the toys.
Now think of a data repository as a big toy box where lots of different people can keep information.
Just like you and your friend have different kinds of toys, people have different kinds of information they want to store in the data repository. Some might have information about customers, some might have information about their products, and some might have information about how their business is doing.
Instead of physically bringing the information to each other, people can store their information in the data repository and then access it from there when they need it.
It’s like everyone is sharing one big toy box, but instead of storing toys, they store important information.