An XML Schema, also known as XML Schema Definition (XSD), is a powerful tool used to define the structure, content, and semantics of XML documents. It provides a more robust and expressive way to validate XML data compared to Document Type Definitions (DTDs).
### Key Features of XML Schema:
1. **Data Types**: XML Schema supports a wide variety of data types (e.g., integers, dates, strings) which can be assigned to elements and attributes,