When a Data Integration Service runs a Human task, the service creates and distributes task instances to users and groups in the Informatica domain. Each task instance identifies a subset of the workflow data that a user must analyze in the Analyst tool.

If the Data Integration Service does not distribute all task instances before the Human task is interrupted, the service continues to distribute the task instances when it restarts the task. The Human task does not restart from the beginning.

If the Data Integration Service distributes all task instances before the Human task is interrupted, the Analyst tool users can work on the instances. However, if the Human task contains multiple steps, the task data cannot move from a current task instance to a task instance that another step defines. When the workflow restarts, the Human task continues from the point of interruption and the task data can move to the next step.

If the workflow database connection fails during task instance creation, the workflow can enter one of several different states. The workflow might fail, or the Data Integration Service might not create all of the task instances that the Human task specifies.

If the workflow database connection fails before the Data Integration Service creates all of the Human task instances, stop the Data Integration Service. Verify that the workflow database connection is available, and restart the Data Integration Service. When the workflow recovers, the Data Integration Service tries to distribute any task instance that remains undistributed.

If a workflow enters an aborted state, any Human task in the workflow enters a Completed state.