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In this paper, we study legacy asset reuse for SOA design. Typically, the cost of reusing legacy assets is much lower than the cost of creating new services from scratch. As an extension of our SOA service modeling, we use top-down approaches to identify business services, and use asset modeling for legacy asset identification to find potential reusable assets for those services. Using service capacity...
Service oriented architecture (SOA) is one central technical foundation supporting the rapidly emerging cloud computing paradigm. To date, however, its application practice is not always successful. One major reason is the lack of a systematic engineering process and tool supported by reusable architectural artifacts. Toward this ultimate goal, this paper proposes a variation oriented analysis method...
For most businesses, a service-oriented architecture offers considerable flexibility in aligning IT functions and business processes and goals. An SOA decouples reusable functions, for example, and lets an organization externalize quality-of-service (QoS) variations in declarative specifications such as WS-Policy and related standards. As a flexible, extensible architectural framework, SOA reduces...
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