Visual C# .NET Dictionary - X, Y, Z

XCOPY

MS-DOS file copy program used for deployment of .NET applications. Normally, .NET applications can be installed simply by copying them from one location—e.g., CD-ROM, folder—to another. Self-describing .NET assemblies are not bound to the Windows registry as are COM-based application. The alternative Microsoft Windows Installer is used for more complex installations—e.g., those modifying the registry.

XDA

Consolidated development environment for building applications for Windows, XBoxes, and others.

XDR

Acronym for XML Data-Reduced. A subset of XML Schema in use prior to the XML Schema 1.0 release.

XHTML

Acronym for eXtensible HyperText Markup Language. XML is designed to describe data. HTML is designed to markup data for display. XHTML features cleaner syntax and stricter parsing rules making it useful for creating well-formed Web pages with greater consistency across the variety of Web browsers. XHTML uses the the syntax of XML to imlement HTML 4.01.

Xlink

Acronym for XML Linking Language. Similar to HTML hyperlinks, this language allows resource links to be embedded in XML documents.

XML

Acronym for eXtensible Markup Language. A markup language providing a format for describing many types of structured data. A subset of SGML, XML has become the standard language for manipulating, storing, and viewing Web-based data. XML features custom tags for describing proprietary data and business logic. XML provides a uniform method for describing and exchanging structured data that is independent of applications or vendors.

XML Library

A .NET Framework library which provides a simple user model and a simple pull-style XML parser for use in resource-constrained devices.

XML Schema

Description of XML document structure. Schemas are written in XSD which supports data types and namespaces. A specification that describes the complex types used in a Web method and, thereby, enables interoperability between clients and Web services built on different platforms by adhering to a common type system as defined by the World Wide Web Consortium (W3C).

XML Schema Definition Tool

.NET programming tool (Xsd.exe) for generating XML schemas—.XSD files—from class information in assemblies or from XDR or XML files. It can also generate DataSet classes or runtime classes from an XSD schema file.

XML Web services

Units of application logic providing data and services to other applications. .NET applications that provide Web-based services to other Web-based applications—Web service consumers. Applications access Web services via standard Web protocols—HTTP—and data formats—SOAP, XML— independent of how each XML Web service is implemented. XML Web services a cornerstone of the .NET programming model.

XP

Acronym for Extreme Programming. Refer to Extreme Programming.

XPath

Acronym for XML Path Language. This language provides path expressions for specifying the locations of data and structures within an XML document. XPointer or XSLT can process XPath information.

XPointer

Acronym for XML Pointer Language. A language for addressing the internal structure of XML documents. It facilitates traversal of an XML document tree and selection of its internal parts based on attribute value, character content, element type, and relative position. XPointer is derived from the XML Path Language—XPath.

XQL

Acronym for XML Query Language. This query language extracts data from XML documents. Resembling the pattern matching semantics of XSL, the data model of XQL is XML.

XSD

Acronym for XML Schema Definition. This World Wide Web Consortium (W3C) standard language describes the structure of an XML document. XSD defines classes which are then used to create instances of XML documents conforming to the schema. The XML Schema contains two parts: a set of predefined types—e.g., dateTime, decimal, string—, and an XML language for defining new types—e.g., complexType, element, minOccurs.

XSL

Acronym for eXtensible Stylesheet Language. This language is for stylesheet creation for XML documents. XSL comprises an XML vocabulary for format semantics specification plus languages for transforming XML documents—XPath.

XSLT

Acronym for eXtensible Stylesheet Language Transformation. Designed to be used with XSL, XSLT is for transforming XML documents into other XML documents using a set of well-formed rules.

Yukon

Code name for the Microsoft SQL Server 2005 release also known as SQL Server 9. Yukon provided full support for ADO.NET and the CLR thus allowing the use of .NET languages to write stored procedures. Yukon was more tightly coupled with both the .NET Framework and the Visual Studio.NET IDE.

Zone

A page region containing Web Parts controls and providing layout management and a consistent UI for the contained controls. A zone in the Web Parts control set is a composite control containing other controls which is rendered as an HTML table. All Web Parts zones inherit from System.Web.UI.WebControls.WebParts.WebZone.