Web services

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Related to Web services: Amazon Web Services

Web services

[′web ‚serv·ə·səs]
(computer science)
A collection of SML-based standards that enable electronic communication and interaction independently of the computer platforms or specific technologies used by the communication parties.

Web Services

(standard, programming, software)
A family of standards promoted by the W3C for working with other business, developers and programs through open protocols, languages and APIs, including XML, Simple Object Access Protocol, WSDL and UDDI.

W3C Web Services.

Web services

(1) In general, any online service delivered from a website. Since there are countless applications and services that emanate from the Web, such usage of the term is commonplace in articles from non-IT publications. Although the term may also appear in technical journals to refer to any offering on the Web, the astute journalist avoids such usage because "Web services" has a very specific definition (see #2). This is another example of generic names coined for specific technologies (see naming fiascos).

(2) When mentioned in the plural ("Web services"), the term often refers to an interface for a service oriented architecture (see SOA), in which Web-based applications dynamically interact with each other using open standards that include XML, HTTP, UDDI and SOAP. Such applications typically run behind the scenes, one program "talking to" another, server to server or client to server.

Services are registered on the Internet so that applications can search for, find and seamlessly exchange data with them. Both desktop and mobile devices can use them, and if the service is fee based, payment processing is included. For mobile Web services protocols, see DPWS.

Private Implementations
Web services are also used when large enterprises need to exchange data with their divisions, subsidiaries or clients. In such controlled situations, the data being passed are easily defined. In addition, since Web services use open standards, vendors can supply customers with client-side software no matter what the platform.

In the past, the Web services style of architecture was occasionally realized within private networks using the industry standard CORBA and Microsoft's DCOM distributed component platforms. See CORBA and DCOM.

It's Just a Protocol
Web services define the format, transport and interface standards, not the meaning of the data exchanged. Before any Web service can be put into operation, there must be industry agreement on the vocabulary and functions each service component must provide (see ebXML). See Web services protocols and XML.

Web Services Protocol Stack
UDDI is used to register and discover the service described in the Web Services Description Language (WSDL). UDDI transactions use SOAP to talk to the UDDI server, and the application uses SOAP to request the service. SOAP messages are delivered by HTTP over TCP/IP. See SOAP, UDDI, HTTP and TCP/IP.
References in periodicals archive ?
Today's release of the Alexa Top Sites web service marks the first time that Alexa's Traffic Rankings have been available programmatically as complete lists.
Additionally, organizations using eXamineSOA Enterprise can make the experience and lessons learned in Web services deployment available to developers building and maintaining Web services.
The Document scenario supports the exchange of existing IFX documents, which is appropriate for existing IFX implementations that want to take advantage of Web Services as a transport.
Built on top of a sophisticated, yet easy-to-use Web Services Commerce Platform, the Marketplace serves as a place for providers and consumers of XML-based Web services to publish, subscribe to, and build applications and Web sites using a diverse set of Web services.
StrikeIron's investment in DesertSoft means that our customers will benefit from StrikeIron's expanded capabilities and services to users of Web Services," said Scott Elder, CEO of DesertSoft.
Along with the core specification, the W3C Web Services Addressing Working Group issued an accompanying Recommendation, "Web Services Addressing 1.
There are multiple communities around Semantic Web Services," explains Jacek Kopecky, chair of the Semantic Annotations for WSDL Working Group and representative from DERI Innsbruck.
Focusing on semantic enhancements to Web services applications, this free event provides concrete examples of business challenges and how they have been resolved through the use of Web Services.
com), creator of XMLSpy(R) and other leading XML, data management, UML, and Web services tools, today announced a new approach to accelerating the creation of reliable Web services.
the worldwide leader of Web services commercialization through the StrikeIron Web Services Marketplace, today announced that it has partnered with RatchetSoft to deliver integrated Web services to the Ratchet-X platform.

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