Start Level 1 Node: Enabling Enterprise ServicesEnabling Enterprise ServicesEnd Level 1 Node: Enabling Enterprise Services
   Start Level 2 Node: Service-Oriented Integration (Point-to-Point)Service-Oriented Integration (Point-to-Point)End Level 2 Node: Service-Oriented Integration (Point-to-Point)
   Start Level 2 Node: Service-Oriented Integration (Brokered)Service-Oriented Integration (Brokered)End Level 2 Node: Service-Oriented Integration (Brokered)