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Lack of transparency and integration between different tiers in supply chains prevent
companies from realizing the large economic benefits of their collaboration. Several
standards are being developed in parallel but there is still no consensus on a general
inter-organizational modeling approach to solve these problems. In this paper we
propose the Resource-Event-Agent (REA) model as such an approach. By extending
and implementing the model we show that REA can represent SCM problems in a way that supports operational applications and performance measurements. Specifically, we
introduce the concept of Location and Transport in the REA ontology.