# Role > See also: [Manage roles](https://documentation.ubuntu.com/jaas/latest/howto/manage-roles.md#manage-roles) In JAAS, a role is a property of an entity that describes what they can do in a JIMM controller. ## Role tag A role tag has the following format: ```text role- role- ``` where `role id` represents the unique identifier of the role. ## Role permission A role permission describes an entity’s relationship to a role. ## List of role permissions ### `assignee` Abilities: Shares the role’s access level to Juju resources and JIMM logs.