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IBM Journal of Research and Development  
Volume 44, Number 4, Page 753 (2005)
Service-Oriented Architecture
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Service-oriented architecture: Programming model and product architecture

by D.F. Ferguson, M.L. Stockton
IBM products increasingly implement a service-oriented architecture (SOA), in which programmers build services, use services, and develop solutions that aggregate services. IBM Software Group middleware products and tools support the development and deployment of SOA solutions, and increasingly make functional interfaces between components and products visible through a service model. Software Group components will increasingly use SOA standards for intracomponent communications. Our move to SOA encompasses both the programming model and lower-level infrastructure software, for example, systems-management and storage-management application programming interfaces and functions. This paper concisely defines the IBM SOA programming model and the product architecture that supports it. We provide the motivation for our programming-model and design decisions. This paper also focuses on the architectural concepts that underlie our programming model and product architecture.
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