What is reusable Service

What do you meant by the reusable Service?




a) It refers to reusable, autonomous, discoverable, stateless functionality which has the essential granularity, and may be part of the composite application or the composite service.

b) A reusable service should be identified with a business activity described by the service specifications (design-time contract).

c) A service’s constraints, involving the security, SLA, QoS, usage policies, can be described by different run-time contracts, multiple interfaces (the WSDL for a SOAP Web Service), and several implementations (the code).

d) A reusable service must be governed at enterprise level throughout its entire lifecycle, from the design-time through the run-time. Its reuse must be promoted through the prescriptive process, and that reuse must be determined.

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