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W3Schools is a great website with a wealth of information and tutorials for web designers and developers. On the left hand side of the website, you'll find links to all their tutorials in various different categories. Most of these tutorials feature quizzes at the end for you to test your skills. This is a quick guide to a selection of W3Schools' XML tutorials.
XML (eXtensible Markup Language) is a general-purpose markup language, referred to as "extensible" because its users can define their own tags. It is mainly used for sharing data between different systems, particularly over the internet.
The W3Schools general XML tutorial features step-by-step articles and examples about basic and advanced features of XML.
XSL (eXtensible Stylesheet Language) is the stylesheet language for XML documents. It is needed as opposed to CSS because in XML documents, tags are not recognised by browsers, as they can be defined by the coder. XSLT stands for XSL Transformations.
The W3Schools XSLT tutorial explains how to use XSTL to transform XML documents into other formats, such as HTML. There are resources about XSL languages, and XSLT browsers, as well as advanced XSLT information.
RSS (Really Simple Syndication) is currently the most popular web feed format. Web feeds allow you to syndicate information such as articles or podcasts, which others can then subscribe to, and read or download using an aggregator. Using RSS is a great way to keep in touch with customers or friends.
The W3Schools RSS tutorial features articles on the history of RSS, and correct syntax, as well as how to publish and read RSS feeds.
WAP (Wireless Application Protocol) is a communication protocol designed to show internet content on wireless devices such as mobile phones. WML (Wireless Markup Language) is the markup language used to write internet content specifically for wireless clients, and is based on XML.
The W3Schools WAP tutorial features general information about WAP and WML, as well as information and examples for basic WAP coding, including formatting and inputting links.
By Helena Henderson