Analysis of Web Services Composition Languages: The Case of by Wohed P., van der Aalst W.M.P., Dumas M.

By Wohed P., van der Aalst W.M.P., Dumas M.

Net providers composition is an rising paradigm for program integration inside and throughout organizational barriers. A panorama of languages and methods for net companies composition has emerged and is always being enriched with new proposals from various owners and coalitions. even though, little attempt has been devoted to systematically assessment the services and obstacles of those languages and strategies. The paintings stated during this paper is a step during this course. It offers an in-depth research of the enterprise technique Execution Language for net providers (BPEL4WS) with admire to a framework composed of workflow and communique styles. key terms: internet providers composition, enterprise method modeling, interorganizational workflow, BPEL4WS.

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Public myCustomHeader myHeaderInstance; // Apply SoapHeader and WebMethod attributes to the SOAP method. [WebMethod] [SoapHeader("myHeaderInstance")] public myWebMethod() { } Although it’s certainly beneficial to be able to create customized SOAP headers in which you can pass Chapter 2: Programming Web Services Enhancements 31 32 Chapter 2: Programming Web Services Enhancements security tokens and message routing information, applications that rely on custom header formats run the risk of breaking interoperability scenarios and thus undermining the most promising aspect of Web services.

NET Framework to create custom filters to handle these headers. NET Framework to support these evolving Web service interoperability standards. Known collectively as Web Services Enhancements (WSE), this offering is made up of a set of classes that implement these new protocols as well as a set of filters that intercept incoming and outgoing SOAP messages and interpret or generate the SOAP headers to support the requested functionalities. 0 of WSE include • WS-Security Leverages XML Encryption and XML Signature to specify how to build security features into a SOAP message.

Jpg" xmime:MediaType="image/jpeg" > --MIME_boundary Content-Type: image/jpeg Content-Transfer-Encoding: binary Content-ID: fd a5 8a 29 aa 46 1b 24 --MIME_boundary Content-Type: image/jpeg Content-Transfer-Encoding: binary Content-ID: b1 d7 1f a3 62 53 89 71 Although this encapsulation mechanism might gain traction in the future with people who prefer MIME or who need to use SMTP for sending SOAP messages with attachments, as this book goes to press, there is no Microsoft support for these technologies and no functional examples that I have come across.

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