Entity Relationship Diagram (ERD) is useful for database administrators, and stakeholders as they provide a clear visual representation of the database structure, aiding in understanding, and communicating complex relationships between entities, attributes, and tables. Database administrators benefit from it and efficient and stakeholders can better understand and communicate their data needs. ERDs and table maps should work by accurately representing the database schema, being regularly updated to reflect any changes, and being accessible to all relevant parties within the organization.