xsd error in the following - xsd

Question

here is the xml
<?xml version="1.0" encoding="utf-8"?>
<Modules xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="XSDQu3.xsd">
<Module code="CSE1246">
<Name shortName="ADSA">Applied Data Structures and Algorithms</Name>
<Level>1</Level>
<ResourcePerson>
<Name>Anwar</Name>
<Surname>Chutoo</Surname>
</ResourcePerson>
</Module>
<Module code="CSE2041">
<Name shortName="Web 2">Web Technologies II</Name>
<Level>2</Level>
<ResourcePerson>
<FullName>Shehzad Jaunbuccus</FullName>
</ResourcePerson>
</Module>
</Modules>
i'm having an error at name. a resource person can either contain fullname or name and surname. please help. Am i correctly doing this part
here is the xsd
<?xml version="1.0" encoding="utf-8"?>
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="NameNSurnameType">
<xs:sequence>
<xs:element name="Name" type="xs:string"/>
<xs:element name="Surname" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="ResourcePersonType">
<xs:sequence>
<xs:choice>
<xs:element name="NameNSurnameType" type="NameNSurnameType"/>
<xs:element name="FullName" type="xs:string"/>
</xs:choice>
</xs:sequence>
</xs:complexType>
<xs:attribute name="code">
<xs:simpleType>
<xs:restriction base="xs:ID">
<xs:pattern value="CSE(\d{4})"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:complexType name="nameType">
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="shortName" type="xs:string"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:element name="Modules">
<xs:complexType>
<xs:sequence>
<xs:element name="Module" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Name" type="nameType"/>
<xs:element name="Level" type="xs:positiveInteger"/>
<xs:element name="ResourcePerson" type="ResourcePersonType"/>
</xs:sequence>
<xs:attribute ref="code" use="required"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>

Answer 1

I can see your confusion; a choice "option" can be almost any particle; a compositor (such as xs:sequence or another xs:choice) would match the description. The minimum you need to do is change the following definition.
<xs:complexType name="ResourcePersonType">
<xs:sequence>
<xs:choice>
<xs:sequence>
<xs:element name="Name" type="xs:string"/>
<xs:element name="Surname" type="xs:string"/>
</xs:sequence>
<xs:element name="FullName" type="xs:string"/>
</xs:choice>
</xs:sequence>
</xs:complexType>
If you want to reference the name as you seem to want to do it with the global complex type, then one can create a group and reference that instead. Below is a modified XSD consistent with the above scenario:
<?xml version="1.0" encoding="utf-8" ?>
<!-- XML Schema generated by QTAssistant/XSD Module (http://www.paschidev.com) -->
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:group name="NameNSurnameType">
<xs:sequence>
<xs:element name="Name" type="xs:string"/>
<xs:element name="Surname" type="xs:string"/>
</xs:sequence>
</xs:group>
<xs:complexType name="ResourcePersonType">
<xs:sequence>
<xs:choice>
<xs:group ref="NameNSurnameType"/>
<xs:element name="FullName" type="xs:string"/>
</xs:choice>
</xs:sequence>
</xs:complexType>
<xs:attribute name="code">
<xs:simpleType>
<xs:restriction base="xs:ID">
<xs:pattern value="CSE(\d{4})"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:complexType name="nameType">
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="shortName" type="xs:string"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:element name="Modules">
<xs:complexType>
<xs:sequence>
<xs:element name="Module" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Name" type="nameType"/>
<xs:element name="Level" type="xs:positiveInteger"/>
<xs:element name="ResourcePerson" type="ResourcePersonType"/>
</xs:sequence>
<xs:attribute ref="code" use="required"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>