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This paper presents a case study on how multitier supply chain integration is being achieved via the use of information systems in the aerospace industry. It is based on interviews conducted with three organizations across the supply chain and an IT vendor who supplied the technology. The study finds that by using a new set of technological standards, namely Web Services, data can be taken from the systems of three disparate organizational systems and then used to help an integrated product team from three organizations manage the supply chain. In order to capture the benefits of this technology, the development of a supply chain mindset, integration of marketing and logistics activities and observing demarcation of what issues can and cannot be discussed via the multilateral relationships need to be addressed. The contribution of the paper is that emergent information systems can be used in a multi-tier context to address the problem of the Forrester effect, a phenomenon that has plagued supply chains for decades.