A proposed Internet protocol that allows a client, such as a Web browser or a streaming media application, to automatically locate and interface with cache services in a network so that information can be delivered more quickly to the user. 

A computer software technique of extracting information from websites. It usually simulate human exploration of the World Wide Web by either implementing low-level HTTP, or embedding a fully-fledged web browser, such as Internet Explorer.

A web search engine is used for searching for information on the World Wide Web. Search results are presented in a line of results often referred to as Search Engine Results Pages (SERP's).

Web Security is part of Information Security that focues on security of websites, web applications and web services. The majority of web attacks occur through cross-site scripting (XSS) and SQL injection attacks which typically occur from flawed coding, and failure to sanitize input and output from the web application.  Open Web Application Security Project (OWASP) is the emerging standards body for Web security.

A type of electronic support (e-support) that allows customers and employees to access information and perform routine tasks over the Internet, without requiring any interaction with a representative of an enterprise. 

A program that, using the client/server model and the World Wide Web's Hypertext Transfer Protocol (HTTP), serves the files that form Web pages to Web users. Every computer on the Internet that contains a Web site must have a Web server program. 

Services that are made available from a business's Web server for Web users or other Web-connected programs. Providers of Web services are generally known as application service providers.

A programming language that provides a global, message-oriented view of processes involving multiple Web services.

A web service is a self-contained and self-describing application component that can be accessed by other programs over the web using open protocols.  

A protocol for managing atomic transactions between distributed applications, transaction managers and resource managers. WS-AT ensures that if a single atomic transaction fails, the whole transaction fails.

Choreography, in a Web services context, refers to specifications for how messages should flow among diverse, interconnected components and applications to ensure optimum interoperability. 

A proposed IT industry standard for how individual Web services can interact in order to accomplish an application task. 

WS-Policy defines a general-purpose XML-based model and syntax that may be used to describe and communicate the policies that inhere to any Web-based service. 

A specification that provides secure communication between Web services using session keys. 

A proposed IT industry standard that addresses security when data is exchanged as part of a Web service. 

One of a series of specifications from an industry group that includes IBM, Microsoft, and BEA Systems. The WS-Transaction interface defines what constitutes a transaction and what will determine when it has completed successfully.