You can view details on a process in the Process Details view. This view can be invoked from the activity execution view in the Workflow Execution Perspective as well as from process tables and activity tables.
The Process Details view displays details about a process instance, like descriptors, activities, participants etc.

Figure: The Process Details View
To view the process history belonging to a currently active activity, click on the process details icon in the toolbar of the activity execution view.

Figure: Process History Option
For details on how to invoke the Process Details view from process and activity tables, refer to chapters Working with Process Tables and Working with Activity Tables respectively.