Hierarchy Graphs have been added to the EPC to provide users with a visualization of the process hierarchies. Viewing this hierarchy allows users to have a clear break-down of work structure, understanding key stakeholders and processes involved.
The Hierearchy Graph, symbolized by 
icon provides users with a top-down visualization of how processes and tasks are broken down. These hierarchy graphs can be found in all Graph sections.
Further detail can be found in section 4.4.3.4.
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