Chapter 1 — Introduction to XML and Data Structure
XML (eXtensible Markup Language) is a text-based format used to store and transport structured data. Unlike HTML, which focuses on displaying information, XML is designed to describe and organize data in a readable and flexible way. It allows developers to define their own tags, making it suitable for many different types of applications and data exchange systems.
Example: Simple XML document
<message>
<sender>Alice</sender>
<receiver>Bob</receiver>
<text>Hello!</text>
</message>This example represents a structured message with clearly defined data elements.