Audit trail
The history of a work item is sometimes known as the audit trail, a term adopted from accounting and bookkeeping.
Click the History button (
or 
) on a user form to access the audit trail display, which shows which operators have worked on the work item and when, what automatic processes were performed by the application, and other details. (The harness controls whether this button is visible.)
You can add the utility activity Work-.AddHistory to a flow to add a history instance at any point in the flow. Others are added automatically at runtime, or added as a result of values you select for the Audit Note field of flow shapes, when editing the flow in Visio.
Work object history instances are stored as objects in classes derived from the History-Work- class. The name of the class is History-ZZZZZ, where ZZZZZ is the name of the work item class.
Definitions — A