XMLRPC: XML Remote Procedure Call, XForms, XHTML, Extensible Hypertext Markup Language, XML, Extensible Markup Language, XML Document, XML DOM, XML Schema, Xpath, XPFE

XForms

A future version of HTML Forms, based on XML and XHTML. Differs from HTML forms by separating data definition and data display. Providing richer and more device independent user input.

XHTML (Extensible Hypertext Markup Language)

HTML reformulated as XML. XHTML is the latest version of HTML. Developed by W3C.

XML -- (Extensible Markup Language)

A widely used system for defining data formats. XML provides a very rich system to define complex documents and data structures such as invoices, molecular data, news feeds, glossaries, inventory descriptions, real estate properties, etc.
As long as a programmer has the XML definition for a collection of data (often called a "schema") then they can create a program to reliably process any data formatted according to those rules.

XML Document

A document written in XML.

XML DOM (XML Document Object Model)

A programming interface for XML documents developed by W3C.

XML Schema

A document that describes, in a formal way, the syntax elements and parameters of a web language. Designed by W3C to replace DTD.

XMLRPC -- (XML Remote Procedure Call)

A protocol for client-server communication that sends and receives information "on top of" HTTP. The data sent and received is in a particular XML format specifically designed for use with XMLRPC.

XPath

XPath is a set of syntax rules (language) for defining parts of an XML document. XPath is a major part of the W3C XSL standard.

XPFE -- (Cross Platform Front End)

A suite of technologies used to create applications that will work and look the same on different computer operating systems. A widely used XPFE application is the Mozilla web browser and its derivates, such as the Netscape web browser in version 7 and later. The primary technologies used in creating XPFE applications are Javascript, Cascading Style Sheets, and XUL.