Example of a xsd file

schema.xsd

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://www.gueka.net/promo/schema"
           targetNamespace="http://www.gueka.net/promo/schema" elementFormDefault="qualified">

    <xs:element name="promotionRequest">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="data" type="tns:data"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>

    <xs:element name="promotionResponse">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="offers" maxOccurs="unbounded" type="xs:string"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
  
    <xs:complexType name="data">
        <xs:sequence>
            <xs:element name="userId" type="xs:string"/>
            <xs:element name="name" type="xs:string"/>
            <xs:element name="surname" type="xs:string"/>
            <xs:element name="initDate" type="xs:dateTime"/>
        </xs:sequence>
    </xs:complexType>

</xs:schema>