Collaborative business scenarios require a flexible integration of enterprises. To manage inter-organizational business processes, existing concepts for business process management (BPM) need to be adopted and extended. This paper presents a conceptual architecture for cross-enterprise processes' planning, implementation, and controlling. Core component of the architecture is a distributed repository managing all required data and information, which especially obtains a process-oriented view on

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... collaboration networks. Crossorganizational processes need close coordination among networking partners. This is achieved through the integration of business process models. Thus we further propose a procedure model of an XML-based model transformation, which reduces complexity of the modeling-task and enables model integration on a conceptual level.