Error assignee and reviewers

When an error occurs, we need a mechanism to assign participants who can act or review errors. The following table highlights facts around Error Assignees And The Reviewer Feature:

Feature	Error Assignees And The Reviewer
Classification	Human Task Pattern
Intent	To offer a mechanism that performs a corrective mechanism when errors occur.
Motivation	While performing task modeling, we should be able to specify a user/group/role whose task gets assigned in case of an error and can be assigned to a user/group/role to review the task.
Applicability	Tasks get assigned to error assignees if they are specified. However, if there are no error assignees being specified, then the error task gets assigned to error assignees. Error assignees can perform ad hoc routing, task reassignment, or mark errors in the task as an indication that the task cannot be rectified further.
Implementation	Errors are of two types, recoverable and nonrecoverable. Recoverable...