Extensible Markup Language

Extensible Markup Language

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Extensible Markup Language (XML) is a text-based language used to store and transport data. It is both human- and machine-readable, and it is widely used in web-based data exchange, among other applications.

XML is a markup language, much like HTML, but while HTML describes how data should be displayed, XML focuses on what the data actually is. XML doesn’t do anything on its own. It’s a way of describing and structuring data, which can then be read and manipulated by a program.

XML uses a system of tags and attributes, much like HTML. It has both opening and closing tags and can use nested elements to provide a hierarchical structure to the data.

Here are some important features of XML:

  1. Self-descriptive: XML uses tags to describe the data and is designed to be self-descriptive.
  2. Extensible: XML allows users to define their own tags and document structure.
  3. Platform-independent: XML data can be processed by any program or platform that understands XML.
  4. Supports Unicode: This allows virtually any information in any written human language to be communicated.
  5. Well-structured: An XML document must be well-structured, meaning it follows specific rules of syntax, such as tags must be closed and properly nested.
  6. Widely used: XML is used in many aspects of web development, often to simplify data storage and data sharing.

An example of XML could be:

xmlCopy code<person>
  <name>John Doe</name>

In this example, <person>, <name>, and <email> are XML tags, and the text in between the tags represent data.

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