What are the two Job Roles required to define the Manufacturing Master Data?

According to the Oracle SCM Business Process Certified Foundations Associate Rel 2 document1, the Manufacturing Engineer and Production Supervisor are the two job roles required to define the Manufacturing Master Data. The Manufacturing Engineer is responsible for creating and maintaining the manufacturing master data, such as items, bills of materials, routings, and work definitions. The Production Supervisor is responsible for creating and maintaining the production resources, such as work areas, work centers, and resources.