A security designer is planning the implementation of security mechanisms in a RBAC (Role Based Access Control) compliant system. The designer has determined that there are three types of resources in the system including files, printers, and mailboxes. The organization has four distinct departments with distinct functions including Sales, Marketing, Management, and Production. Each department needs access to different resources. Each user has a workstation. Which roles should be created to support the RBAC (Role Based Access Control) model?