Imagine you have a big box in your room where you keep all your toys, books, and drawings. Sometimes, you might forget where you put something or it might get lost in all the other things. This can make it hard to find what you want and sometimes you might even forget you have something.
An open archival information system is kind of like a big digital box for important documents, pictures, and other things that people want to keep safe and make sure they can find later on. Instead of being in your room, though, it's on the computer and can be accessed from anywhere.
When people put things into the open archival information system, they have to make sure they organize it carefully so that other people can find it easily. They might put things into different folders or label them with special names so that they can be searched for easily.
Just like you might need help finding something in your big box, sometimes people need help finding things in the open archival information system. There are special people called archivists who help with this. They know how to look things up and find the right folders or labels to locate what people are looking for.
Having an open archival information system is important because it means that people can keep important things safe and organized all in one place. It's like the ultimate digital filing cabinet!