Okay, kiddo, you know how sometimes you play with different toys and they are not the same? One is a car and another is a doll, right? Well, when people need to talk to each other, they may use different words for the same thing, just like different toys. Sometimes it can be really confusing! That's where NIEM comes in.
NIEM stands for "National Information Exchange Model." It's like a big book of words that people all over the country can use to talk about the same things in the same way. It's like agreeing to use the same word for the toy car: call it "car", "auto", or "vehicle", but each time we all refer to the same thing.
NIEM helps people communicate better by making sure everyone uses the same words and descriptions when they share information. It's like a secret code where people who know it can understand each other better. Wouldn't it be super cool if everyone can understand what we are talking about without any confusion? That's what NIEM helps us to do!