G4UA::VolumeDebuggerTool Node1 G4UA::VolumeDebuggerTool - m_config + VolumeDebuggerTool() # makeAndFillAction() Node2 G4UA::UserActionToolBase < VolumeDebugger > # m_actions + UserActionToolBase() + fillUserAction() # makeAndFillAction() Node2->Node1 Node3 extends< AthAlgTool, IUserActionTool > Node3->Node2