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# Glossary of Terms

The following list contains terms that are commonly used in describing the Research feature and are used throughout the Research Service Software Development Kit.

research service

A research service is a resource for users to look up information about words or phrases in a Microsoft® Office 2003 application or in Microsoft Internet Explorer. Results of a search are displayed in the Research task pane.

provider

A provider is a source of research content typically accessed through an external URL or internal server address. A provider may offer one or more research services.

query

Query is the general term for a search on a research service. The Research feature allows users to requery a research service by doing further searching on the same service for a result returned from a previous search.

requery

A requery is a search based on a result returned from a previous query, and searches the same research service that returned that result in the prior query. Typically, the user would invoke the requery through a hyperlink in the list of results returned from the prior query. The Research task pane would update only the portion of the results under that research service.

schema

An XML schema describes the structure of data in an XML document. It is also known as an XML Schema Definition (XSD). It defines the elements, attributes, and their data types in an XML document.

SOAP

Simple Object Access Protocol is an XML and HTTP-based protocol for accessing services, objects, and servers in a platform-independent manner.

XML

Extensible Markup Language is a metadata definition language used to describe data in a structured open format.

XML Web service

An XML Web service is an application available on the Web that other applications can share, regardless of the platform and the language that the applications use. Generally, an XML Web service performs some common task. Other application developers can subscribe to the Web service without having to implement the code themselves. This is made possible by the open standards that Web services support: XML, SOAP, Web Service Description Language (WSDL), and Universal Description, Discovery and Integration (UDDI).

Research services are implemented as XML Web services. A provider offering a research service provides a URL to the Web service. Users can subscribe to the Web service by specifying the URL when adding the research service through the Research task pane.

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