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To access the Oracle Application Express development environment, users log in to a shared work area called a workspace. Users are divided into four primary roles:
Developers are users who create and edit applications
Workspace administrators are users who perform administrator tasks specific to a workspace such as managing user accounts, monitoring workspace activity, and viewing log files
End users have no development privileges and are defined to provide access to applications that do not use an external authentication scheme.
Oracle Application Express administrators are superusers that manage an entire hosted instance using the Application Express Administration Services application