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O service repeatable task a business performs o soa

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o Service – repeatable task a business performs o SOA – standard techniques to model every activity as a service and interactions among services Activities Modeled as Services o Circles are people (resources), not services o Data about tent requirements spread all over company o Many people need to be contacted to find tent status o Inventory management service inferred, not modeled o NOTE: the above refers to the majestic river ventures example in the book Service Interactions Governed by Standards o Encapsulation – places logic for service in one place and all other services go to it for that service o Standards reduced proprietary designs and expanded scope and importance of SOA Cloud Computing o Computing services that provide processing, data storage, and specific application functions over the internet Web Services o Web services description language – often used in combination with SOAP and XML schema to provide web services over the Internet. A client program connecting to a Web service can read the WSDL to determine what functions are available on the server Standards o XML – extensible markup language, used to model and structure data. o SOAP (not an acronym) – a protocol for exchanging messages encoded in XML o WSDL from above ^
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