Jim Palistrant

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The need to respond to changing business demands with flexible IT solutions has led many businesses to service oriented architectures (SOAs). An SOA is an IT framework that combines individual business functions and processes, called services, to implement sophisticated business applications and processes. SOA is an approach to IT that considers business processes as reusable components or "services" that are independent of the applications and computing platforms on which they run. SOA solutions are designed as assemblies of services in which the description of the assembly is a managed, first-class aspect of the system, and hence amenable to analysis, change, and evolution. A system is then viewed as a choreographed set of service interactions, so enterprise solutions appear as federations of services connected via well-specified contracts that define their servi... (more)