State of Massachusetts uses SOA to deliver healthcare services. With HTML web application it had no control of look and feel and handling many hospitals. With SOAP based messaging they can easily handle different systems, billing systems, medical records systems etc. Use Microsoft-based systems.
Countrywide financial simplifies lending: IBM Websphere based SOA is used to deliver services.
Guardian Life Insurance uses SOA: IBM websphere based services. Uses EJB for business logic.
British Telecom uses combination of BEA systems and Microsoft’s Connected Services Framework. Billing backend and operational support for the organization are web services. Legacy systems are enabled as web services.
Amazon.com provides WS API for developers to implement applications leveraging their architecture and data.
XML is a markup language, developed by W3C (World Wide Web Consortium), mainly to overcome the limitations of HTML.
But it took a life of its own and has become a very popular part of distributed systems.
We will examine its definition, associated specifications (DTD, XSLT etc.), Java APIs available to process XML, protocols and services based on XML, and the role XML plays in a distributed computing environment.
WS Stack Network XML-based Messaging Service Description Service Publication Service Discovery Service Flow HTTP, FTP, MQ Email, IIOP SOAP WSDL UDDI UDDI WSFL Security Management Quality of Service
WS Interoperability Infrastructure Network XML Messaging Service Description WSDL SOAP HTTP Do you see any platform or language dependencies here?