Best practices for service interface design in SOA

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[*]Part 1: Exploring the development, interfaces, and operation semantics of services
[url]http://www.ibm.com/developerworks/architecture/library/ar-servdsgn1/[/url]

[*]Part 2: Using services to report errors to service consumer applications
[url]http://www.ibm.com/developerworks/architecture/library/ar-servdsgn2/[/url]
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