schema
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema">
<xs:element name = "root">
<xs:complexType>
<xs:sequence>
<xs:element name="element1" >
<xs:complexType>
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="int1to10" type="int1" use="required"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:simpleType name="int1">
<xs:restriction base="xs:integer">
<xs:minInclusive value="1" />
<xs:maxInclusive value="10" />
</xs:restriction>
</xs:simpleType>
</xs:schema>