Introduction to XML
Patrick Yott
Abstract
Patrick Yott
Abstract
SUMMARY This chapter begins with a brief history of markup technologies and an examination of two of the most commonly encountered markup languages: HTML and XML. The basic structural components of an XML document are described, and the rules for creating “well-formed” documents are discussed. The concept of data modeling and document “validity” will be demonstrated using a simple DTD (Document Type Definition), and several markup examples will follow. The notions of XML as a data interchange system and XSLT as a transformation and display language will be examined.
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SUMMARY This chapter begins with a brief history of markup technologies and an examination of two of the most commonly encountered markup languages: HTML and XML. The basic structural components of an XML document are described, and the rules for creating “well-formed” documents are discussed. The concept of data modeling and document “validity” will be demonstrated using a simple DTD (Document Type Definition), and several markup examples will follow. The notions of XML as a data interchange system and XSLT as a transformation and display language will be examined.
Key concepts: Computer science, Information retrieval, Library science, World Wide Web, XML, Database