The predefined job and abstract roles may inherit roles that grant them access to work areas, pages, actions, or data that you do not want those roles to have. The recommended approach is to copy the relevant job or abstract role, such as Human Resource Specialist or Employee. You can then remove from the copied role the duty role or aggregate privilege that grants the role access to the work area, page, action, or data in question. The role simplification project, completed in Release 10, helped to identify duty roles and aggregate privileges by flattening the role hierarchy. However, in some cases it is still not obvious which duty roles or aggregate privileges secure a page or page content.