A task has multiple stakeholders. Participants are the users defined in the assignment and routing section of the task definition. These users are the primary stakeholders that perform actions on the task.

In addition to the participants specified in the assignment and routing policy, human workflow supports additional stakeholders:

• Owner

  This participant has business administration privileges on the task. This participant can be specified as part of the task definition or from the invoking process (and for a particular instance). The task owner can act upon tasks they own and also on behalf of any other participant. The task owner can change both the outcome of the task and the assignments.

  For more information, see How to Specify a Task Owner to specify an owner in the Human Task Editor or Specifying a Task Owner to specify an owner in the Advanced tab of the Human Task dialog box.

• Initiator

  The person who initiates the process (for example, the initiator files an expense report for approval). This person can review the status of the task using initiated task filters. Also, a useful concept is for including the initiator as a potential candidate for request-for-information from other participants.

  For more information, see Specifying the Task Initiator and Task Priority.

• Reviewer

  This participant can review the status of the task and add comments and attachments. You can grant the reviewer role to a participant at runtime using the process instance attributes reviewer and reviewerType. The reviewer process attribute stores the name of the reviewer, the default value is "ProcessReviewer" or the value assigned in the Human Task configuration. The reviewerType process attribute stores the type of reviewer which can be: user, role or group. You can set these attributes dynamically to modify the effective reviewer.

• Admin

  This participant can view all tasks and take certain actions such as reassigning a test, suspending a task to handle errors, and so on. The task admin cannot change the outcome of a task.

  While the task admin cannot perform the types of actions that a task participant can, such as approve, reject, and so on, this participant type is the most powerful because it can perform actions such as reassign, withdraw, and so on.

• Error Assignee

  When an error occurs, the task is assigned to this participant (for example, the task is assigned to a nonexistent user). The error assignee can perform task recovery actions from Oracle BPM Worklist, the task form in which you perform task actions during runtime.

  For more information, see How to Configure the Error Assignee and Reviewers.