XML TutorialLesson 4Free preview

XML Tree

This lesson is part of XML · All levels

Summary

XML is structured like a tree: there's one root element that clusters the child element, and each child can have another child. Each element has an opening tag, a content tag, and a closing tag, so the parent-child relationship becomes clear. The tree structure makes it easy for applications to trace data from root to leaf.

Key points

XML documents have exactly one root element.
Each element forms a node in the tree structure
The relationship between the elements is expressed as parent and child
Elements without children are called leaves or leaves
Seamless indentation helps humans read the structure of the XML tree

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