The Lifecycle Comparison Editor is split into two panes. The left-hand tree-view is used to navigate the lifecycle hierarchy of State, Process and Linked-Process elements. The right-hand list-view is used to view the properties associated with whatever element is selected in the tree-view.
The icons in the tree-view represent the Project, State and Processes that make up the lifecycle. These icons should already be familiar from Harvest Workbench. The icons are further decorated with additional markers to indicate differences, or items that appear on the left- or right-side only.