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.

CORBA and DCOM
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 ?
The Web Services Working Group selected document/literal as the style of choice, because the Web Services-Interoperability Organization (WS-I) requires it and because there is already a widely used encoding of IFX in XML.
Xignite (pronounced "X-Ignite") is the largest provider of pure play financial web services for mission-critical corporate applications.
Access to Integrated ISV partner solutions that have created a variety of applications for CRM, eCommerce, and business management using Web services from the Marketplace.
Web Services Addressing introduces a way to specify the destination address reply messages and faults in SOAP messages, taking advantage of SOAP's versatility in being carried by arbitrary underlying protocols and being applicable to a wide variety of interaction patterns.
More than 400 researchers and developers participate in the continuing Semantic Web Services Interest Group (SWS IG), a public forum created in 2003 to discuss Web Services topics oriented towards integration of the Semantic Web and Web Services.
Service-oriented architectures (SOAs) implemented with Web services are fundamentally changing business processes supported by distributed computing.
W3C tested and standardized the essential components of the Web services model, ensuring a stable foundation for applications development.
StrikeIron, Web Services Business Network, WSBizNet, StrikeIron Web Services Marketplace, StrikeIron Marketplace Powered, and Web Services Marketplace are trademarks of StrikeIron, Inc.
Plug and play access to Marketplace Web services (API access to the Marketplace).
The combined solutions of BRIDGEWERX and StrikeIron provide extended value by enabling an SOA integration platform with the ability to leverage powerful web services both inside and outside the enterprise," said David S.

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