Which role gives access to the CI Class Manager?

The role that grants access to the Configuration Item (CI) Class Manager is indeed the ecmdb_admin role. This role is designed for users who need comprehensive control over the Configuration Management Database (CMDB), including the ability to manage and configure CI classes.

The ecmdb_admin role is specifically tailored to provide permissions that allow for advanced management tasks, such as defining, modifying, and deleting CI classes, which are crucial for properly managing configuration items within the CMDB. Having this role empowers users to oversee the structure and organization of the CI classes, ensuring that the data model aligns with the organization's requirements.

Other roles, while they may offer some degree of access related to the CMDB, do not provide the full suite of capabilities necessary to manage CI classes effectively. Therefore, ecmdb_admin is the correct choice for users who need the highest level of access to the CI Class Manager functionality.