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diff --git a/docs/org.eclipse.jst.ws.doc.user/concepts/cws.dita b/docs/org.eclipse.jst.ws.doc.user/concepts/cws.dita deleted file mode 100644 index b0e628674..000000000 --- a/docs/org.eclipse.jst.ws.doc.user/concepts/cws.dita +++ /dev/null @@ -1,93 +0,0 @@ -<?xml version="1.0" encoding="utf-8"?> -<!--Arbortext, Inc., 1988-2005, v.4002--> -<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" - "concept.dtd"> -<concept id="cws" xml:lang="en-us"> -<title>Web services overview</title> -<shortdesc>A Web service is a set of related application functions that can -be programmatically invoked over the Internet. Businesses can dynamically -mix and match Web services to perform complex transactions with minimal programming. -Web services allow buyers and sellers all over the world to discover each -other, connect dynamically, and execute transactions in real time with minimal -human interaction.</shortdesc> -<prolog><metadata> -<keywords><indexterm>Web services<indexterm>overview</indexterm></indexterm> -</keywords> -</metadata></prolog> -<conbody> -<p>Web services are self-contained, self-describing modular applications that -can be published, located, and invoked across the Web.</p> -<lq> <p> <uicontrol>Web services are self-contained.</uicontrol> On the client -side, no additional software is required. A programming language with -XML and HTTP client support is enough to get you started. On the server -side, a Web server and servlet engine are required. The client and server -can be implemented in different environments. It is possible to Web -service enable an existing application without writing a single line of code.</p> <p> <uicontrol>Web -services are self-describing.</uicontrol> The client and server need to recognize -only the format and content of request and response messages. The definition -of the message format travels with the message; no external metadata repositories -or code generation tools are required.</p> <p> <uicontrol>Web services are -modular.</uicontrol> Simple Web services can be aggregated to form more complex -Web services either by using workflow techniques or by calling lower layer -Web services from a Web service implementation.</p><p><uicontrol>Web Services -are platform independent.</uicontrol> Web services are based on a concise -set of open, XML-based standards designed to promote interoperability between -a Web service and clients across a variety of computing platforms and programming -languages.</p> </lq> -<p>Web services might be anything, for example, theatre review articles, weather -reports, credit checks, stock quotations, travel advisories, or airline travel -reservation processes. Each of these self-contained business services is an -application that can easily integrate with other services, from the same or -different companies, to create a complete business process. This interoperability -allows businesses to dynamically publish, discover, and bind a range of Web -services through the Internet.</p> -<section><title>Categories of Web services</title><p>Web services can be grouped -into three categories:</p><lq> <p> <uicontrol>Business information.</uicontrol> A -business shares information with consumers or other businesses. In this case, -the business is using Web services to expand its scope. Examples of business -informational Web services are news streams, weather reports, or stock quotations.</p> <p> <uicontrol>Business -integration.</uicontrol> A business provides transactional, "for fee" services -to its customers. In this case, the business becomes part of a global network -of value-added suppliers that can be used to conduct commerce. Examples of -business integration Web services include bid and auction e-marketplaces, -reservation systems, and credit checking.</p> <p> <uicontrol>Business process -externalization.</uicontrol> A business differentiates itself from its competition -through the creation of a global value chain. In this case, the business uses -Web services to dynamically integrate its processes. An example of business -process externalization Web services is the associations between different -companies to combine manufacturing, assembly, wholesale distribution, and -retail sales of a particular product.</p> </lq></section> -<section><title>Service roles and interactions</title><p>A network component -in a Web Services architecture can play one or more fundamental roles: service -provider, service broker, and service client.</p><ul> -<li>Service providers create and deploy their Web services and can publish -the availability of their WSDL-described services through a service registry, -such as a UDDI Business Registry.</li> -<li>Service brokers register and categorize published services and provide -search services. For example, UDDI acts as a service broker for WSDL-described -Web services.</li> -<li>Service clients use broker services such as the UDDI Business Registry -to discover a needed WSDL-described service and then bind to and call the -service provider.</li> -</ul><p>Binding involves establishing all environmental prerequisites that -are necessary to successfully complete the services. Examples of environmental -prerequisites include security, transaction monitoring, and HTTP availability. -The relationships between these roles are described in Figure 1.</p><p>Figure -1. Service roles and interactions.</p><p> <image alt="Figure 1 illustrates the interactions between the service broker, service provider, and service requestor." -href="../images/roles.gif"></image> </p><p>For more information on Web services, -refer to <xref format="html" href="http://www.ibm.com/developerworks/webservices" -scope="external">www.ibm.com/developerworks/webservices</xref></p></section> -</conbody> -<related-links> -<linklist><title>Related Concepts</title> -<link href="cwsinwsa.dita"><linktext>Tools for Web services development</linktext> -</link> -<link href="cwsstandards.dita" scope="local"><linktext>Web services standards</linktext> -</link> -</linklist> -<linklist><title>Related Tasks</title> -<link href="../tasks/toverws.dita" scope="local"><linktext> Developing Web -services</linktext></link> -</linklist> -</related-links> -</concept> |