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Web Application Server

A web application server (or web server) is a server, which in its simplest form simply serves a static web page upon request or provides an environment for complex, integrated applications i.e. communicating with database management systems and even other applications on other servers.

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Web Services

The term "Web Services" can be somewhat confusing, as it is, unfortunately, used in many different ways. This explanation refers to the term "Web Services" as an implementation of a Service Oriented Architecture (SOA).

Web Services are defined using Web Services Description Language (WSDL) and are published to a directory of services, which could use Universal Description, Discovery and Integration (UDDI). A service consumer obtains the information required to use a service from the information published in the directory by the service provider. SOAP generally provides the "envelope" for sending web services messages between consumer, provider and directory.

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Web Services Description Language (WSDL)

WSDL forms the basis of Web Services and is used to define Web Services. A service provider describes its service using WSDL and publishes the definition to a services directory, which could use Universal Description, Discovery and Integration (UDDI). A service consumer uses WSDL to obtain the information required to send a request for the service.

WSDL uses XML to define messages.

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WebSphere MQ

The IBM WebSphere MQ family of products, which provide an open, scalable, industrial strength messaging and information infrastructure, enabling enterprises (and their customers, business partners etc.) to integrate business processes.

IBM "rebranded" the MQSeries family of products as the WebSphere MQ family of products.

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World Wide Web (WWW) (The Web)

The World Wide Web is an extremely vast and growing collection of documents on the Internet that are linked together using hyperlinks. The Web was originally invented or created around 1990 by Tim Berners-Lee and Robert Cailliau. The document you are currently reading is part of the Web.

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World Wide Web Consortium (W3C)

The organization that co-ordinates the development of the Web. Tim Berners-Lee, a co-inventor of the Web, is director of W3C.

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