The architecture reflects a Business Network consisting of Co-ordination and Participant nodes. To balance the workload on all participants in an optimum way, all data and application adaptation services are located on the participant nodes. The co-ordinating node is mostly used as a central repository of common data and information, as well as a look-up service. The communication at the application level is achieved through standard Web Services, and at higher level through web portals that provide information in the context of the business network, (including active process information and state, controller feedback etc) to the end users.