In the Oracle Application Express, users log in to a shared work area called a workspace. Users are divided into three primary roles:
Developers create and edit applications.
Workspace administrators are developers who also perform administrator tasks specific to their workspace such as managing user accounts, monitoring workspace activity, and viewing log files. See " Workspace and Application Administration ".
Instance administrators are superusers that manage the entire hosted instance using the Oracle Application Express Administration Services application.
"Oracle Application Express Hosted Instance Administration " for more information on the responsibilities of an Instance administrator.