This paper discusses the specifications, methods, and constructs to implement end-to-end Service Oriented Architecture (SOA)-based systems engineering across a federation of information domains. It addresses the necessity and benefits of a repeatable service design framework and its ability to consistently yield quantifiable results for SOA performance evaluation. An illustrative example of the approach is presented.prise Service Bus (ESB)-enabled, event-driven SOA for our design framework. The discrete event simulator OMNet++ 1 provides the behavior environment in which SOA-based performance is evaluated. Thus, a framework wherein servicebased information solutions can be evaluated across a federation is established. By demonstrating how service-oriented architectures can be evaluated in quantifiable terms, SOA architects will have a reliable tool at their disposal for evaluating design options and overall service performance.

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