1. Recursive relationship

2. Data model

3. <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified"> <xsd:element name="monarch" type="monarchType" maxOccurs="unbounded"/>

4. <monarchs xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="monarch.xsd"> m1 William IV King 1830-06-26 m2 Victoria I Queen 1837-06-20 m1

6. <employees xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="employee.xsd"> e1 Alice 75000 e2 e2 Ned 45000 e3 e4 e3 Andrew 25000 e4 Clare 25000

8. <products xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="product.xsd"> p1000 Animal photography kit 725 p101 1 p101 Camera case 150 300