A multiteam system is like playing a game of soccer with more than one team. Imagine you and your friends love playing soccer, and you have more than one group of friends who want to play too. Instead of playing all together in one team, you split everyone into different teams and play against each other.
In a multiteam system, different groups of people work together on different parts of a big project. Just like teammates in soccer, each group has its own strengths and skills to bring to the table to score points and win the game. They all have a specific role to play, and everyone's teamwork helps the whole project succeed.
For example, think about building a house. One team might focus on the foundation, another on the plumbing, and another on the painting. Each team is responsible for their own part of the project, but they work together to make sure the overall goal of building a house is achieved.
Multiteam systems allow for a big task to be broken down into smaller, manageable parts, with each team working efficiently to make sure that everything comes together in the end.