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This paper presents the vision for service orientation and service-oriented architecture in enterprise computing. We first explore the promise of service orientation and discuss the role that service orientation plays in developing connected systems. Most IT organizations today need to justify their projects with an expected Return on Investment (ROI) and on Customer Satisfaction. Information Technology now faces pressures on number of fronts like requirements to be more responsive and flexible to shifting business needs, and challenges of handling incompatible and heterogeneous software systems, demands to bring new business services to a broader array of consumers ranging from customers accessing services via web interfaces, to partners sharing information.....
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