A XSD Schema file for example.

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"

targetNamespace="http://www.example.org/Simple" xmlns:tns="http://www.example.org/Simple"

elementFormDefault="qualified">

<xs:complexType name="user" mixed="true">



<xs:sequence>

<xs:element name="name" type="xs:string" default="Eric001" />

<xs:element name="age" type="tns:age" default="30" />

<xs:element name="gender" type="tns:gender" default="Male" />

<xs:element name="password" type="tns:password" />

<xs:any maxOccurs="unbounded"></xs:any>

</xs:sequence>

<xs:attribute name="role" type="xs:string"/>



</xs:complexType>

<xs:simpleType name="gender">

<xs:restriction base="xs:string">

<xs:enumeration value="Male" />

<xs:enumeration value="Female" />

</xs:restriction>

</xs:simpleType>

<xs:simpleType name="age">

<xs:restriction base="xs:integer">

<xs:minInclusive value="1" />

<xs:maxInclusive value="120" />

</xs:restriction>

</xs:simpleType>

<xs:simpleType name="letter">

<xs:restriction base="xs:string">

<xs:pattern value="[A-Za-z0-9]"></xs:pattern>

</xs:restriction>

</xs:simpleType>

<xs:simpleType name="password">

<xs:restriction base="xs:string">

<xs:pattern value="(([0-9]+[a-zA-Z]+)|([a-zA-Z]+[0-9]+))"></xs:pattern>

<xs:minLength value="5" />

<xs:maxLength value="8" />

</xs:restriction>

</xs:simpleType>

<xs:simpleType name="amount">

<xs:restriction base="xs:decimal">

<xs:totalDigits value="2"></xs:totalDigits>

</xs:restriction>

</xs:simpleType>

<xs:element name="root">

<xs:complexType mixed="true">

<xs:sequence>

<xs:any maxOccurs="unbounded"></xs:any>

</xs:sequence>

</xs:complexType>

</xs:element>

<xs:element name="user" type="tns:user" >



</xs:element>

<xs:element name="cost" type="tns:amount" />

<xs:element name="title"></xs:element>

</xs:schema>

Following is the XML file:
<?xml version="1.0" encoding="UTF-8"?>

<tns:root xmlns:tns="http://www.example.org/Simple" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.example.org/Simple Simple.xsd ">

This is an user test

<tns:user role="admin">

<tns:name>tnsname1</tns:name>

<tns:age>18</tns:age>

<tns:gender>Male</tns:gender>

<tns:password>sfds3555</tns:password>

<tns:title/>

</tns:user>

<tns:user role="admin">

<tns:name>tnsname1</tns:name>

<tns:age>18</tns:age>

<tns:gender>Male</tns:gender>

<tns:password>sfds3555</tns:password>

<tns:title/>

</tns:user>

<tns:cost>0.22</tns:cost>

<tns:cost>0</tns:cost>

</tns:root>