XML Document & XSD Schema

XML Document

<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
    <book category="fiction">
        <title>The Great Gatsby</title>
        <author>F. Scott Fitzgerald</author>
        <year>1925</year>
        <price>15.99</price>
        <isbn>978-0-7432-7356-5</isbn>
        <rating>4</rating>
    </book>
    <book category="non-fiction">
        <title>Clean Code</title>
        <author>Robert C. Martin</author>
        <year>2008</year>
        <price>0.50</price>
        <rating>6</rating>
    </book>
    <book category="invalid-category">
        <title>Test Book</title>
        <author>Test Author</author>
        <year>1800</year>
        <price>1500.00</price>
    </book>
</bookstore>

XSD Schema

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="bookstore">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="book" maxOccurs="unbounded">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="title" type="xs:string"/>
                            <xs:element name="author" type="xs:string"/>
                            <xs:element name="year">
                                <xs:simpleType>
                                    <xs:restriction base="xs:integer">
                                        <xs:minInclusive value="1900"/>
                                        <xs:maxInclusive value="2024"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                            <xs:element name="price">
                                <xs:simpleType>
                                    <xs:restriction base="xs:decimal">
                                        <xs:minInclusive value="1"/>
                                        <xs:maxInclusive value="1000"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                            <xs:element name="isbn" minOccurs="0">
                                <xs:simpleType>
                                    <xs:restriction base="xs:string">
                                        <xs:pattern value="[0-9]{3}-[0-9]{1}-[0-9]{4}-[0-9]{4}-[0-9]{1}"/>
                                        <xs:length value="17"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                            <xs:element name="rating" minOccurs="0">
                                <xs:simpleType>
                                    <xs:restriction base="xs:integer">
                                        <xs:minInclusive value="1"/>
                                        <xs:maxInclusive value="5"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                        </xs:sequence>
                        <xs:attribute name="category" use="required">
                            <xs:simpleType>
                                <xs:restriction base="xs:string">
                                    <xs:enumeration value="fiction"/>
                                    <xs:enumeration value="non-fiction"/>
                                    <xs:enumeration value="science-fiction"/>
                                    <xs:enumeration value="mystery"/>
                                </xs:restriction>
                            </xs:simpleType>
                        </xs:attribute>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>

Validation Results

Validation Status

Validation Statistics

Total Elements: 0

Total Attributes: 0

Validation Time: 0ms

File Size: 0 bytes

Enter XML document and XSD schema, then click "Validate XML" to see results

About XSD XML Validation

What is XSD?

XML Schema Definition (XSD) is a way to describe and validate the structure and content of XML documents. It defines:

Element types and data types
Required and optional elements
Element order and nesting
Attribute definitions and constraints
Data validation rules

Common Validation Errors

Missing Required Elements:
Elements that are required by the schema but missing in XML

Invalid Data Types:
Values that don't match the expected data type (string, integer, etc.)

Schema Structure Mismatch:
Elements in wrong order or nested incorrectly

Namespace Issues:
Missing or incorrect namespace declarations

XSD XML Validator