Creating XML Schema for elements with the same name?

Question

I am trying to create an XSD Schema for an XML document I have received however there are two elements staff which have the same name.

Is there any way to create a schema for this XML even though there are two elements with the same name?

XML:

<contacts>
    <staff count="248" pagesize="284">
    <staff id="1231">
    <Forename>test</Forename>
    <Surname>test</Surname>
    <DateOfBirth>0000-00-00</DateOfBirth>
    <Gender/>
    <Address1/>
    <Address2/>
    <Town/>
    <County/>
    <Telephone/>
    <Mobile/>
    <Email/>
    <Created>0000-06-18 09:46:32</Created>
    <CreatedBy>test</CreatedBy>
    <Updated>2000-06-18 09:46:32</Updated>
    <UpdatedBy>test</UpdatedBy>
    <Archived>0000-00-00 00:00:00</Archived>
    <ArchivedBy/>
    <Postcode/>
    <Age>0</Age>
    <RestrictedRecord>0</RestrictedRecord>
    <Disability_S_24/>
    <Ethnicity_S_25/>
    <Type>8</Type>
    <PersonID>1231</PersonID>
    <TypeName>staff</TypeName>
    </staff>
</staff>
</contacts>

Schema so far:

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
    <xs:element name="contacts">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="staff"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <xs:element name="staff">
        <xs:complexType>
            <xs:sequence>
                <xs:element maxOccurs="unbounded" ref="staff"/>
            </xs:sequence>
            <xs:attribute name="count" use="required" type="xs:integer"/>
            <xs:attribute name="pagesize" use="required" type="xs:integer"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="staff">
        <xs:complexType>
            <xs:all  >
                <xs:element ref="Forename" minOccurs="0"/>
                <xs:element ref="Surname" minOccurs="0"/>
                <xs:element ref="DateOfBirth" minOccurs="0"/>
                <xs:element ref="Gender" minOccurs="0"/>
                <xs:element ref="Address1" minOccurs="0"/>
                <xs:element ref="Address2" minOccurs="0"/>
                <xs:element ref="Town" minOccurs="0"/>
                <xs:element ref="County" minOccurs="0"/>
                <xs:element ref="Telephone" minOccurs="0"/>
                <xs:element ref="Mobile" minOccurs="0"/>
                <xs:element ref="Email" minOccurs="0"/>
                <xs:element ref="Created" minOccurs="0"/>
                <xs:element ref="CreatedBy" minOccurs="0"/>
                <xs:element ref="Updated" minOccurs="0"/>
                <xs:element ref="UpdatedBy" minOccurs="0"/>
                <xs:element ref="Archived" minOccurs="0"/>
                <xs:element ref="ArchivedBy" minOccurs="0"/>
                <xs:element ref="Postcode" minOccurs="0"/>
                <xs:element ref="Age" minOccurs="0"/>
                <xs:element ref="RestrictedRecord" minOccurs="0"/>
                <xs:element ref="Disability_S_24" minOccurs="0"/>
                <xs:element ref="Ethnicity_S_25" minOccurs="0"/>
                <xs:element ref="Education_V_2" minOccurs="0"/>
                <xs:element ref="EmploymentTrainingStatus_V_1" minOccurs="0"/>
                <xs:element ref="Type" minOccurs="0"/>
                <xs:element ref="PersonID" minOccurs="0"/>
                <xs:element ref="TypeName" minOccurs="0"/>
            </xs:all>
            <xs:attribute name="id" use="required" type="xs:integer"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="Forename" type="xs:string"/>
    <xs:element name="Surname" type="xs:string"/>
    <xs:element name="DateOfBirth" type="xs:NMTOKEN"/>
    <xs:element name="Gender" type="xs:string"/>
    <xs:element name="Address1" type="xs:string"/>
    <xs:element name="Address2" type="xs:string"/>
    <xs:element name="Town" type="xs:string"/>
    <xs:element name="County" type="xs:string"/>
    <xs:element name="Telephone" type="xs:string"/>
    <xs:element name="Mobile" type="xs:string"/>
    <xs:element name="Email" type="xs:string"/>
    <xs:element name="Created" type="xs:string"/>
    <xs:element name="CreatedBy" type="xs:NCName"/>
    <xs:element name="Updated" type="xs:string"/>
    <xs:element name="UpdatedBy" type="xs:NCName"/>
    <xs:element name="Archived" type="xs:string"/>
    <xs:element name="ArchivedBy" type="xs:string"/>
    <xs:element name="Postcode" type="xs:string"/>
    <xs:element name="Age" type="xs:integer"/>
    <xs:element name="RestrictedRecord" type="xs:integer"/>
    <xs:element name="Disability_S_24">
        <xs:complexType/>
  </xs:element>
    <xs:element name="Ethnicity_S_25">
        <xs:complexType/>
    </xs:element>
    <xs:element name="Type" type="xs:integer"/>
    <xs:element name="PersonID" type="xs:integer"/>
    <xs:element name="TypeName" type="xs:NCName"/>
</xs:schema>

Answer 1

If two sibling elements have the same name, then there's a rule in XSD ("element declarations consistent") that says they must also have the same type.

However, if elements appear in different places in the XML, not as siblings, (for example staff/staff versus contacts/staff) then they can have different types; this can be achieved using local element declarations.