people.xsd

<?xml version="1.0" encoding="UTF-8"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name='people'>
        <xs:complexType>
            <xs:sequence>
                <xs:element name='person' type='PersonType' minOccurs='0'
                            maxOccurs='unbounded'/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>

    <xs:complexType name="PersonType">
        <xs:sequence>
            <xs:element name="birthYear">
                <xs:simpleType>
                    <xs:restriction base="xs:integer">
                        <xs:minInclusive value="1900"/>
                        <xs:maxInclusive value="2001"/>
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
            <xs:element name="name" type="xs:string"/>
            <xs:element name="surname" type="xs:string"/>
            <xs:element name="propositions" >
                <xs:complexType>
                    <xs:sequence minOccurs="0" maxOccurs="unbounded">
                        <xs:element name="proposition" type="xs:string"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="demands">
                <xs:complexType>
                    <xs:sequence minOccurs="0" maxOccurs="unbounded">
                        <xs:element name="demand" type="xs:string"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="fullName" type="xs:string"/>
        </xs:sequence>
        <xs:attribute name='id' type='xs:positiveInteger'/>
    </xs:complexType>
</xs:schema>