ABSTRACT
Abstract: Business network redesign (BNR) has been regarded as the logical step following internal business process redesign. Several methodological approaches have emerged to support a variety of interorganizational redesign aspects. These cover either the allocation of responsibilities among the actors in a business network or the allocation of activities within an interorganizational business process. This chapter elaborates on the constitutional elements of BNR methods and uses them to analyze existing approaches. An important result is a methodology that consistently guides the transformation from a business and a technological perspective is still missing. In view of this deficit and the growing adoption of portal systems, this chapter presents a methodology for the implementation of portals in interorganizational business processes. An in-depth case study illustrates the transformation of the spare parts business at Watch Corp. Key enabler is a portal that has been integrated with a business network consisting of internal departments, external service providers, and suppliers. This research shows the application of BNR methodology at Watch Corp. and concludes with a call for more integrated models across the three architectural layers as well as for an integration of architecture and assessment models.
