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<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning" elementFormDefault="qualified"
attributeFormDefault="unqualified" vc:minVersion="1.1"
targetNamespace="http://www.test.com/XMLSchema/data/2021"
xmlns="http://www.test.com/XMLSchema/data/2021"
xmlns:ad="http://www.test.com/XMLSchema/data/2021">
<xs:element name="assessment">
<xs:annotation>
<xs:documentation>Data about the performed tests.</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" minOccurs="0" name="part" type="AssessmentPart">
<xs:key name="circle_id_key">
<xs:annotation>
<xs:documentation>For ContrastVisionTest.
Since all parts are types we can not add keys and keyrefs to them. As such, we add the constraints here.</xs:documentation>
</xs:annotation>
<xs:selector xpath="ad:screen_elements/ad:contrast_circles/ad:circle"/>
<xs:field xpath="@circle_id"/>
</xs:key>
<xs:keyref name="circle_id_keyref" refer="circle_id_key">
<xs:selector xpath="ad:events/ad:circle_pressed"/>
<xs:field xpath="@circle_id"/>
</xs:keyref>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:complexType abstract="true" name="AssessmentPart">
<xs:annotation>
<xs:documentation>Base type for the assessment element.</xs:documentation>
</xs:annotation>
</xs:complexType>
<xs:complexType abstract="true" name="AssessmentTest">
<xs:annotation>
<xs:documentation>Base type for a test.</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="AssessmentPart"/>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="ContrastVisionTest">
<xs:complexContent>
<xs:extension base="AssessmentTest">
<xs:sequence>
<xs:element name="screen_elements">
<xs:complexType>
<xs:sequence>
<xs:element name="contrast_circles">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="3" name="circle" minOccurs="3">
<xs:complexType>
<xs:attribute name="circle_id" use="required">
<xs:annotation>
<xs:documentation>The id of this circle, used to reference the circle presses.</xs:documentation>
</xs:annotation>
<xs:simpleType>
<xs:restriction base="xs:integer">
<xs:minInclusive value="0"/>
<xs:maxInclusive value="9"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="events">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" minOccurs="0"
name="circle_pressed">
<xs:complexType>
<xs:attribute name="circle_id" type="xs:integer"
use="required"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:schema>
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