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The business architecture of a service-oriented enterprise can be adequately represented through five main architectural domains: business value, structure, behavior, policy, and performance. In this paper we focus on the core business architecture, the set of essential elements in each of the five domains, and the interrelationships among these elements. The business architecture described in this paper identifies the key elements required for business reasoning and for its application to business transformation through service-oriented solutions. A business scenario involving a fictional company in the apparel business illustrates the concepts presented here.
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