If you need to assign different permissions to different employees in your enterprise to access ModelArts resources, IAM is a good choice for fine-grained permissions management.
When personnel changes occur, you only need to change individual user permissions by changing their user group. User groups make permission management more efficient.
You (account A) can create an agency on IAM to grant required permissions to the delegated account (account B). The administrator of account B grants the Agent Operator permissions to the user of account B to enable the user to manage resources in your account (account A).
You can use IAM to create an IdP and create rules for the IdP to convert federated users into IAM users who have specified permissions to access cloud resources.