XML is a meta-markup language, a set of rules for creating semantic tags used to describe data. An XML element is made up of a start tag, an end tag, and data in between. The start and end tags describe the data within the tags, which is considered the value of the element. For example, the following XML element is a element with the value "Matthew Dunn."

In the SAX section of the tutorial, you wrote an XML file that contains slides for a presentation. You then used the Simple API for XML (SAX) API to echo the XML to your display. In this section of the tutorial, you'll use the Document Object Model (DOM) to build a small SlideShow application. You'll start by constructing a DOM and inspecting it, then see how to write a DOM as an XML structure, display it in a GUI, and manipulate the tree structure.

XML needn't be scary. In this beginner's introduction to XML, Tom shows how to define a markup langauge using DTDs, and how XML can be styled just like any other "ML" (HTML, XHTML) etc using a regular CSS file. Then he shows you how to use XSL Transformations to produce HTML and CSS from a raw XML file on a client (using IE6). This tutorial introduces complex concepts in a simple and accessible manner, and is suitable for beginners.

In this Open Enterprise Trends hands-on tutorial on Cocoon 2, developers will get a full package, including: (1) a well-versed Cocoon 2 overview, (2) simple examples (complete with schematics and figures) on the inner workings of XML and Cocoon;

XML is based around the concept of elements. Here is an XML element containing some text:

This tutorial gives a good overview of XML its related technologies. Through hands-on exercises you will gain a deep understanding of XML-based development. A number of solutions and system architectures from real-life applications are also discussed in the tutorial.

A mini tutorial about the XML Tehnology.

This tutorial assumes no previous knowledge of XML. It has, however, been designed for those who some familiarity with HTML. This tutorial will lay out for you all the basics that you will need to know to create your own XML documents.

This intermediate-level tutorial introduces developers to the W3C XML specifications XPointer, XInclude, and XML Base and the independent specification XUpdate, which offers an alternative to XSLT and DOM parsing for updating parts of XML documents.

In this first article, I focus on what I consider the core XML technologies. These are the technologies that form the basis of what is expressed in an XML document. In subsequent articles I will cover standards relating to XML processing by developers, and a selection of the most important XML applications (that is, vocabularies).

XML is a markup language derived from the language SGML. It provides a method for describing the structure of a document and a data format for specifying a document so that its structure and content become seperately accessible. It can be used for exchanging (semi)structured data between different computing platforms and applications.

A nice tutorial on XML - PDF -

By now, no doubt, you’ve heard the acronym XML. You’ve probably also heard that XML (a) is simple and (b) will solve all your problems. Sounds like magic, doesn’t it? But then you look a little deeper and encounter more three-letter acronyms, like DTD, XSL, RDF, and DOM.

This tutorial consists of a set of interactive lessons that walk you through typical Extensible Markup Language (XML) authoring and development tasks.

You can use IE5 to view an XML document just as you view any HTML page. There are several ways to open an XML document. You can click on a link, type the URL into the address bar, double-click on an XML document in a folder, and so on.

XML (Extensible Markup Language) is a flexible way to create common information formats and share both the format and the data on the World Wide Web, intranets, and elsewhere. For example, computer makers might agree on a standard or common way to describe the information about a computer product (processor speed, memory size, and so forth) and then describe the product information format with XML.

This chapter describes the Extensible Markup Language (XML) and its related specifications.

If you're new to the Java API for XML-based RPC (JAX-RPC), this chapter is the place to start. After briefly describing JAX-RPC, the chapter shows you how to build a simple Web service and client. The chapter continues to focus on examples by presenting code listings and step-by-step instructions for creating dynamic clients, authenticating over SSL, and deploying Web services on the J2EE SDK 1.3.1.

Part 3 of this Transforming XML Documents tutorial shows you how to transform XML documents into high-quality, print-optimized documents.

This tutorial is an overview of Workflow for XML to PDF Generation.