About Remote State
Terraform stores the state of your managed infrastructure from the last
time Terraform was run. By default this state is stored in a local file
terraform.tfstate, but it can also be stored remotely, which
works better in a team environment.
Atlas is a remote state provider, allowing you to store, version and collaborate on state with Atlas.
Remote state gives you more than just easier version control and safer storage. It also allows you to delegate the outputs to other teams. This allows your infrastructure to be more easily broken down into components that multiple teams can access.
Read more about remote state.